5th Grade Science Quiz: Identify Gravity As Pulling Force
20 questions · exam conditions
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Identify Gravity As Pulling ForceQuestion 1 of 20

Gravity pulls objects toward Earth's center. What does the word "down" mean in this sentence?

Down means toward Earth, in the direction of the ground.
Down means toward the nearest cloud in the sky.
Down means away from Earth and out into space.
Down means whichever way a person is facing at the moment.
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5th Grade Science Quiz

5th Grade Science Quiz: Identify Gravity As Pulling Force

Practice Identify Gravity As Pulling Force in 5th Grade Science with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Identify Gravity As Pulling Force, giving you a quick way to practice the rules, question types, and explanations that matter most for 5th Grade Science.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

Gravity pulls objects toward Earth's center. What does the word "down" mean in this sentence?

  1. Down means toward Earth, in the direction of the ground. (correct answer)
  2. Down means toward the nearest cloud in the sky.
  3. Down means away from Earth and out into space.
  4. Down means whichever way a person is facing at the moment.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding what 'down' means in the context of gravitational pull. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. The question asks students to define 'down' in the context of gravity pulling objects toward Earth's center. Choice A is correct because it accurately defines down as toward Earth, in the direction of the ground, showing the student understands that 'down' means toward Earth's center and connects this abstract concept to the concrete experience of the ground beneath us. Choice C represents a common error where students think down means away from Earth - this typically happens because students may not yet have a clear mental model of Earth as a sphere with gravity pulling toward its center. To help students: Use a globe to show that 'down' in China points toward Earth's center, not toward the ground beneath USA, and emphasize that gravity pulls everything toward Earth's center, which we call 'down' no matter where we are on Earth. Watch for: Students who don't recognize that 'down' means toward Earth's center or who think 'down' is an absolute direction in space rather than relative to Earth.

Question 2

A student says, "The ball fell because the air pushed it down." Which statement best corrects the student using the idea of gravity as a force?

  1. The ball fell because gravity pulled it toward Earth, not because air pushed it down. (correct answer)
  2. The ball fell because gravity pushed it away from Earth.
  3. The ball fell because gravity works only on objects that are moving fast.
  4. The ball fell because only round objects feel gravity.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically correcting the misconception that air pushes objects down rather than gravity pulling them. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center - this is fundamentally different from air pressure, which can push in various directions. Objects fall because Earth's gravity pulls them down, not because air pushes them down. For this question, students must correct a peer's misconception about the cause of falling. Choice A is correct because it accurately states that the ball fell because gravity pulled it toward Earth, not because air pushed it down, directly addressing and correcting the misconception while reinforcing gravity as a pulling force from Earth. Choice B represents an error where gravity is described as pushing rather than pulling - this shows confusion about gravity's fundamental nature as a pulling force. To help students: Address misconceptions directly with evidence - 'Some think air pushes objects down, but actually Earth's gravity pulls objects down - here's evidence: objects fall in vacuum chambers with no air, and astronauts in spacecraft with air still float without Earth's strong pull.' Watch for: Students who confuse gravity with air pressure or who use incorrect directional language (push vs. pull) when describing gravity.

Question 3

Objects fall because Earth pulls on them with gravity. Which statement is evidence that gravity is always pulling near Earth?

  1. A book stays on a table instead of floating away, even when it is not moving. (correct answer)
  2. A magnet can pull a paper clip toward it from a short distance.
  3. A fan can blow air that makes a paper move across a desk.
  4. A ball rolls farther on smooth ground than on rough ground.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically identifying evidence that gravity is always pulling and acts on stationary objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color; gravity is always pulling, even on stationary objects (a book on a table is still being pulled down, balanced by the table pushing up). For this question, it asks for evidence like objects staying on surfaces, demonstrating gravity's constant pull. Choice A is correct because it correctly identifies evidence that gravity is always pulling near Earth (a book stays on a table instead of floating away, even when not moving), showing the student understands gravity is always acting, not just when objects fall, and recognizes evidence like objects falling when dropped or staying on ground. Choice B represents a common error where students confuse gravity with magnetism (magnets are selective and can push/pull, gravity is universal and only pulls); this typically happens because magnetic force is more tangible (can feel magnet push/pull) so students may overgeneralize to gravity. To help students: Compare to other forces explicitly: magnets (selective, push/pull), fan blowing (pushes air), friction (opposes motion on rough surfaces), gravity (universal, only pulls, constant, downward); emphasize gravity is always acting - a book on a table is still being pulled by gravity (down), balanced by the table pushing up. Watch for: Students who think gravity only acts when objects are falling or who confuse gravity with other forces like magnetism or friction.

Question 4

The arrows in the picture point from an apple in a tree straight down to the ground labeled "Earth." What direction does the force of gravity pull the apple?

  1. Upward, away from Earth, because the tree is tall.
  2. Sideways, toward the trunk of the tree.
  3. Downward, toward Earth's center (toward the ground). (correct answer)
  4. In different directions depending on the apple's color.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically identifying direction as toward Earth. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. All objects are pulled by gravity in same direction - toward Earth's center. Choice C is correct because it correctly states that gravity pulls objects toward Earth (down). This shows the student understands Earth's gravity pulls all objects toward Earth's center. Choice A represents a common error where students think gravity can be turned off or stopped (always acting near Earth's surface). This typically happens because students may not yet understand that forces act constantly, thinking force only present when motion occurs. To help students: Use arrows in diagrams always pointing from object toward Earth/ground to show direction of pull. Watch for: Students who don't recognize that 'down' means toward Earth's center (so 'down' in China points toward Earth's center, not toward ground beneath USA).

Question 5

The diagram shows a book resting on a table. A downward arrow on the book is labeled "Gravity pulls down," and an upward arrow from the table is labeled "Table pushes up." Why does the book stay still instead of moving?

  1. Gravity stops pulling when an object is not moving.
  2. The table's upward push balances gravity's downward pull on the book. (correct answer)
  3. The book is too light for gravity to pull on it.
  4. Gravity pushes the book upward, so it cannot fall.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding gravity acts on all objects and is always pulling, even on stationary objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is always pulling, even on stationary objects (book on table still being pulled down, balanced by table pushing up). Choice B is correct because it correctly recognizes that gravity acts on all objects, not just heavy ones, and correctly identifies evidence that gravity is always pulling (objects fall when dropped, stay on ground, water flows downhill). This shows the student understands gravity is always acting, not just when objects fall. Choice A represents a common error where students think gravity can be turned off or stopped (always acting near Earth's surface). This typically happens because students may not yet understand that forces act constantly, thinking force only present when motion occurs. To help students: Emphasize gravity is always acting - book on table is still being pulled by gravity (down), balanced by table pushing up. Watch for: Students who think gravity only acts during falling.

Question 6

The diagram shows a feather and a rock held at the same height above the ground labeled "Earth." Both have arrows pointing downward labeled "Gravity pulls down." Which statement is true about gravity's pull?

  1. Gravity pulls on both objects toward Earth, even though they may fall differently. (correct answer)
  2. Gravity pulls only on the rock because it is heavier.
  3. Gravity pushes the feather upward because it is light.
  4. Gravity pulls the feather sideways but pulls the rock downward.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding gravity acts on all objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. All objects are pulled by gravity in same direction - toward Earth's center. Choice A is correct because it correctly recognizes that gravity acts on all objects, not just heavy ones. This shows the student understands gravity is always acting, not just when objects fall, and gravity is external force from Earth, not property of object itself. Choice B represents a common error where students think gravity only affects heavy or large objects (affects all objects equally). This typically happens because in everyday experience heavy objects seem to 'fall harder' (really just air resistance affects light objects more). To help students: Demonstrate with many objects - drop feather and rock in vacuum or describe without air to show gravity pulls both. Watch for: Students who think heavy things have more gravity rather than all objects being pulled by Earth's gravity.

Question 7

The diagram shows a ball above the ground labeled "Earth," with arrows pointing downward from the ball labeled "Force of gravity (pull toward Earth)." Which best describes what gravity is doing to the ball?

  1. Gravity is air pushing the ball down because the air is heavier than the ball.
  2. Gravity is a force that pulls the ball downward toward Earth's center. (correct answer)
  3. Gravity only pulls on heavy objects, so it will not affect a light ball.
  4. Gravity pushes the ball upward when it is not touching the ground.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically recognizing gravity as a pulling force not pushing and understanding its direction toward Earth's center. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. For this question, arrows in diagram show gravitational force pulling objects downward toward Earth. Choice B is correct because it accurately identifies gravity as a force that pulls the ball downward toward Earth's center. This shows the student understands gravity is a force (push or pull), specifically pulling force, and Earth's gravity pulls all objects toward Earth's center. Choice A represents a common error where students think gravity is air pushing down rather than Earth pulling (it's pulling force from Earth, not pushing from air). This typically happens because air pressure exists and does push, so students may attribute falling to air pushing rather than Earth pulling. To help students: Use consistent language - 'Earth's gravity pulls all objects toward Earth's center (down)' and demonstrate with many objects - drop feather and rock in vacuum or describe without air to show gravity pulls both. Watch for: Students who confuse gravity with air pressure (think air pushes down).

Question 8

The diagram shows a ball at three positions: leaving a hand, higher in the air, and then lower again. At each position, a downward arrow labeled "Gravity pulls toward Earth" is shown. Why does the ball come back down after being thrown up?

  1. Gravity keeps pulling the ball downward toward Earth the whole time. (correct answer)
  2. Gravity turns off at the top and turns back on near the ground.
  3. Air above the ball pushes it down harder than gravity does.
  4. The ball comes down because it becomes heavier at the top.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding gravity acts on all objects and is always pulling, even on stationary objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is always pulling, even on stationary objects (book on table still being pulled down, balanced by table pushing up). Choice A is correct because it correctly identifies evidence that gravity is always pulling (objects fall when dropped, stay on ground, water flows downhill). This shows the student understands gravity is always acting, not just when objects fall. Choice B represents a common error where students think gravity can be turned off or stopped (always acting near Earth's surface). This typically happens because students may not yet understand that forces act constantly, thinking force only present when motion occurs. To help students: Emphasize gravity is always acting - book on table is still being pulled by gravity (down), balanced by table pushing up. Watch for: Students who think gravity only acts during falling.

Question 9

The arrows in the picture show the force of gravity acting on an apple in a tree, a ball in the air, and a book resting on a table. All arrows point downward toward the ground labeled Earth. What does this show about gravity?

  1. Gravity pulls only on objects that are falling through the air.
  2. Gravity pulls on all objects near Earth, even when they are not moving. (correct answer)
  3. Gravity can be blocked by a table, so the book has no gravity on it.
  4. Gravity pushes objects down when they are light and up when they are heavy.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding gravity acts on all objects and is always pulling, even on stationary objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color; gravity is always pulling, even on stationary objects (a book on a table is still being pulled down, balanced by the table pushing up). For this question, arrows in the picture show gravitational force pulling downward on an apple in a tree, a ball in the air, and a book on a table. Choice B is correct because it correctly recognizes that gravity pulls on all objects near Earth, even when they are not moving, showing the student understands gravity is always acting, not just when objects fall, and it's a universal, constant, directional force. Choice A represents a common error where students think gravity pulls only on objects that are falling through the air (it acts constantly, even on stationary objects); this typically happens because students may not yet understand that forces act constantly, thinking force is only present when motion occurs. To help students: Use arrows in diagrams always pointing from the object toward Earth/ground to show direction of pull, and emphasize gravity is always acting - a book on a table is still being pulled by gravity (down), balanced by the table pushing up; compare to other forces explicitly: your hand push (stops when you stop), gravity (universal, only pulls, constant, downward). Watch for: Students who think gravity can be turned off or stopped (it's always acting near Earth's surface) or who think gravity only acts when objects are falling.

Question 10

A book is resting on a table and not moving. Which statement is true about gravity in this situation?

  1. Gravity is not acting because the book is not falling.
  2. Gravity is acting and pulling the book downward toward Earth. (correct answer)
  3. Gravity is turned off by the table so the book can stay still.
  4. Gravity is pushing the book upward to keep it on the table.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding that gravity acts constantly on all objects, even stationary ones. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is always pulling, even on stationary objects - the book on the table is still being pulled down by gravity, balanced by the table pushing up. Choice B is correct because it accurately identifies that gravity is acting and pulling the book downward toward Earth, even though the book isn't moving, showing the student understands that gravity is always acting, not just when objects fall. Choice A represents a common error where students think gravity is not acting because the book is not falling - this typically happens because students may not yet understand that forces act constantly, thinking force is only present when motion occurs. To help students: Use balanced force demonstrations - 'The book stays still because two forces balance: gravity pulls down, table pushes up. If we remove the table, gravity still pulls and the book falls!' and emphasize that gravity never 'turns off' near Earth's surface. Watch for: Students who think gravity only acts during falling or who confuse balanced forces (book not moving) with absence of forces (gravity not acting).

Question 11

A student throws a ball straight up. After a moment, the ball slows down and comes back down. Why does it come back down?

  1. The ball comes down because the air pulls it downward more than gravity does.
  2. The ball comes down because gravity pulls it toward Earth the whole time. (correct answer)
  3. The ball comes down because gravity stops and starts depending on the throw.
  4. The ball comes down because gravity only pulls when the ball is falling.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding that gravity acts constantly throughout an object's motion. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. For this question, a student throws a ball straight up and it comes back down, demonstrating that gravity pulls it toward Earth throughout its entire path - while going up, at the top, and while coming down. Choice B is correct because it correctly explains that the ball comes down because gravity pulls it toward Earth the whole time, showing the student understands that gravity is always acting, not just when objects fall, and that it eventually overcomes the upward motion. Choice D represents a common error where students think gravity only pulls when the ball is falling - this typically happens because students may not yet understand that forces act constantly, thinking gravity 'turns on' only during downward motion. To help students: Emphasize that gravity pulls the ball down even as it rises (that's why it slows down going up) and use the analogy 'Gravity is like an invisible string always pulling the ball toward Earth - it never lets go!' Watch for: Students who think gravity stops and starts or only acts during falling motion.

Question 12

Objects fall because Earth pulls on them. Which best describes gravity?

  1. Gravity is an invisible force that pulls objects toward Earth. (correct answer)
  2. Gravity is air that pushes objects down from above.
  3. Gravity is a force that pushes objects away from Earth.
  4. Gravity is a force that only works on objects that are moving fast.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically defining gravity as an invisible pulling force. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. The question states that objects fall because Earth pulls on them, directly connecting falling to Earth's gravitational pull. Choice A is correct because it accurately identifies gravity as an invisible force that pulls objects toward Earth, showing the student understands that gravity is a force (push or pull), specifically a pulling force, and that it's invisible yet real. Choice B represents a common error where students think gravity is air pushing down rather than Earth pulling - this typically happens because air pressure exists and does push, so students may attribute falling to air pushing rather than Earth pulling. To help students: Use consistent language - 'Gravity is Earth's invisible pulling force' and demonstrate that gravity works even without air (describe astronauts dropping objects on the moon where there's no air). Watch for: Students who confuse gravity with air pressure or who think gravity pushes rather than pulls.

Question 13

Gravity is a force. What kind of force is gravity near Earth?

  1. A pulling force that acts on objects even when they are not moving. (correct answer)
  2. A pushing force that sends objects away from Earth.
  3. A force that only works when an object is already falling.
  4. A force that only pulls on metal objects, like a magnet.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically defining gravity as force and recognizing gravity as pulling force not pushing. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is pulling force, never pushing force. Choice A is correct because it accurately identifies gravity as invisible pulling force that Earth exerts on objects. This shows the student understands gravity is a force (push or pull), specifically pulling force. Choice D represents a common error where students confuse gravity with magnetism (magnets selective and can push/pull, gravity universal and only pulls). This typically happens because magnetic force is more tangible (can feel magnet push/pull) so students may overgeneralize to gravity. To help students: Compare to other forces explicitly: magnets (selective, push/pull), your hand push (stops when you stop), air resistance (opposes motion, not pulling down), gravity (universal, only pulls, constant, downward). Watch for: Students who think gravity only acts when objects are falling (acts constantly, even on stationary objects).

Question 14

Gravity is a force. Which best describes what gravity does to objects near Earth?

  1. Gravity pulls objects upward, away from Earth, when they are dropped.
  2. Gravity pulls objects toward Earth, even if they are not moving. (correct answer)
  3. Gravity only works when an object is already falling through the air.
  4. Gravity pulls only on metal objects and not on plastic or wood.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding that gravity acts on all objects constantly, not just when they're falling. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is always pulling, even on stationary objects - a book on a table is still being pulled down, balanced by the table pushing up. Choice B is correct because it correctly states that gravity pulls objects toward Earth, even if they are not moving, showing the student understands that gravity is always acting, not just when objects fall. Choice C represents a common error where students think gravity only acts when objects are falling - this typically happens because students may not yet understand that forces act constantly, thinking force is only present when motion occurs. To help students: Emphasize gravity is always acting - a book on table is still being pulled by gravity (down), balanced by table pushing up, and use examples like 'Why doesn't your pencil float away from your desk? Because gravity is always pulling it down!' Watch for: Students who think gravity only acts during falling or who don't understand that stationary objects are still affected by gravity.

Question 15

Objects near Earth fall toward the ground. How is gravity different from magnetic force?

  1. Gravity pulls only on metal objects, but magnets pull on everything.
  2. Gravity pulls on all objects toward Earth, but magnets pull only certain metals. (correct answer)
  3. Gravity pushes objects away, but magnets only pull objects closer.
  4. Gravity works only when objects touch Earth, but magnets work only in water.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically distinguishing gravity from other forces like magnetism. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color; gravity is always pulling, even on stationary objects, and is universal unlike selective forces. For this question, it compares gravity's effect on all falling objects to magnetism's selective pull. Choice B is correct because it correctly recognizes that gravity pulls on all objects toward Earth, but magnets pull only certain metals, showing the student understands gravity's universal, constant, directional nature and distinguishes it from magnetism. Choice A represents a common error where students think gravity pulls only on metal objects, but magnets pull on everything (gravity is universal, magnetism is selective); this typically happens because magnetic force is more tangible (can feel magnet pull on metals) so students may overgeneralize or reverse the properties. To help students: Compare to other forces explicitly: magnets (selective, push/pull, only certain metals), gravity (universal, only pulls, constant, downward on all objects); use concrete examples like dropping non-metal objects to show gravity pulls them too. Watch for: Students who confuse gravity with magnetism (think gravity only pulls metals) or who think gravity can push like some magnets do.

Question 16

Gravity is different from magnetic force. Which statement is true about gravity near Earth but not true about magnetism?

  1. Gravity pulls on all objects, even wood, plastic, and people. (correct answer)
  2. Gravity pulls only on objects made of iron or steel.
  3. Gravity can push objects away from Earth when it is strong.
  4. Gravity works only when two objects are touching.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically distinguishing gravity from magnetism. Gravity is an invisible pulling force that Earth exerts on ALL objects - wood, plastic, people, metal, everything - while magnetism is selective, affecting only certain materials like iron or steel. Additionally, gravity only pulls (never pushes) while magnets can both push and pull. For this question, students must identify what's true about gravity but not magnetism. Choice A is correct because it accurately states that gravity pulls on all objects, even wood, plastic, and people, which distinguishes it from magnetism that only affects magnetic materials - this shows the student understands gravity's universal nature. Choice B represents a confusion between gravity and magnetism where students incorrectly apply magnetism's selective nature to gravity - this typically happens because magnetic force is more tangible (students can feel magnets attract metal) so they may think gravity works similarly. To help students: Compare forces explicitly - magnets are selective (only certain metals), can push or pull, and get weaker with distance quickly; gravity is universal (all objects), only pulls, and extends far into space. Watch for: Students who confuse properties of magnetism and gravity, especially thinking gravity is selective like magnetism or that both forces work the same way.

Question 17

A student says, "Gravity only pulls on objects when they are falling." Which statement best corrects the student?

  1. Gravity pulls only on heavy objects, so some objects are not affected.
  2. Gravity is always pulling toward Earth, even when an object is resting. (correct answer)
  3. Gravity pushes objects down only when the wind is strong.
  4. Gravity can be blocked by a table, so it does not pull on a book.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically understanding gravity acts on all objects and is always pulling, even on stationary objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is always pulling, even on stationary objects (book on table still being pulled down, balanced by table pushing up). Choice B is correct because it correctly identifies evidence that gravity is always pulling (objects fall when dropped, stay on ground, water flows downhill). This shows the student understands gravity is always acting, not just when objects fall. Choice A represents a common error where students think gravity only affects heavy or large objects (affects all objects equally). This typically happens because in everyday experience heavy objects seem to 'fall harder' (really just air resistance affects light objects more). To help students: Demonstrate with many objects - drop feather and rock in vacuum or describe without air to show gravity pulls both. Watch for: Students who think heavy things have more gravity rather than all objects being pulled by Earth's gravity.

Question 18

The picture shows a ball held above the ground labeled Earth. A downward arrow labeled "gravity pulls down" is shown even before the ball is released. What does this mean?

  1. Gravity only pulls after the ball starts falling, not while it is held.
  2. Gravity is always pulling the ball toward Earth, even when the ball is not moving. (correct answer)
  3. Gravity is caused by air pushing down on the ball while it is held.
  4. Gravity pulls the ball upward until you let go of it.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically recognizing gravity is always pulling, even on held or stationary objects. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color; gravity is always pulling, even on stationary objects (a held ball is still being pulled down, balanced by the hand holding it up). For this question, the picture shows a downward gravity arrow on a held ball before release. Choice B is correct because it correctly states that gravity is always pulling the ball toward Earth, even when the ball is not moving, showing the student understands gravity is always acting, not just when objects fall, and it's a constant force. Choice A represents a common error where students think gravity only pulls after the ball starts falling, not while it is held (it acts constantly); this typically happens because students may not yet understand that forces act constantly, thinking force is only present when motion occurs. To help students: Use consistent language - 'Earth's gravity pulls all objects toward Earth's center (down)' and demonstrate with diagrams showing gravity arrows even on held objects; emphasize gravity is always acting - you feel the pull when holding a ball (gravity pulling down, your hand pushing up). Watch for: Students who think gravity only acts during falling or who think objects fall because of their own properties rather than external force (gravity is Earth's pull on the object).

Question 19

Gravity is different from magnetic force. Which statement is true about gravity but not always true about magnets?

  1. Gravity pulls only on objects made of iron and steel.
  2. Gravity can push objects away as well as pull them in.
  3. Gravity pulls on all objects toward Earth, not just certain materials. (correct answer)
  4. Gravity only works when two objects are touching.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically distinguishing gravity from other forces. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. Gravity is pulling force, never pushing force. Choice C is correct because it correctly distinguishes gravity from other forces by its universal, constant, directional nature. This shows the student understands gravity is a force (push or pull), specifically pulling force. Choice A represents a common error where students confuse gravity with magnetism (magnets selective and can push/pull, gravity universal and only pulls). This typically happens because magnetic force is more tangible (can feel magnet push/pull) so students may overgeneralize to gravity. To help students: Compare to other forces explicitly: magnets (selective, push/pull), your hand push (stops when you stop), air resistance (opposes motion, not pulling down), gravity (universal, only pulls, constant, downward). Watch for: Students who think gravity is property of objects rather than Earth's force on objects.

Question 20

When you drop a pencil from your hand, it falls to the floor. What causes the pencil to fall toward the ground?

  1. Air pushes the pencil down harder than your hand pushed it up.
  2. The pencil falls only because it is made of wood.
  3. Earth's gravity pulls the pencil downward toward Earth. (correct answer)
  4. Gravity turns on only after you let go of the pencil.
Explanation: This question tests a 5th grader's ability to identify gravity as a force that pulls objects toward Earth (NGSS 5-PS2-1), specifically explaining why objects fall. Gravity is an invisible pulling force that Earth exerts on all objects, pulling them toward Earth's center (which we experience as 'down'). Unlike other forces students may know (like pushes or pulls from hands), gravity acts constantly, invisibly, at a distance, and on every object regardless of size, weight, material, or color. For this question, student drops ball and it falls, demonstrating gravity pulls it toward ground. Choice C is correct because it correctly explains that objects fall because gravity pulls them, not because of air pressure or object properties. This shows the student understands gravity is the cause of falling, not just description of falling, and gravity is external force from Earth, not property of object itself. Choice A represents a common error where students think gravity is air pushing down rather than Earth pulling (it's pulling force from Earth, not pushing from air). This typically happens because air pressure exists and does push, so students may attribute falling to air pushing rather than Earth pulling. To help students: Address misconceptions directly: 'Some think air pushes objects down, but actually Earth's gravity pulls objects down - here's evidence: astronauts in space with air present still float without Earth's strong pull'. Watch for: Students who think objects fall because of their own properties rather than external force (gravity is Earth's pull on object).