All flashcards
Flashcard 1: Which option is the best observation-based reason a feather falls slower than a coin in air?
Answer: Air resistance slows the feather more. Feathers have more surface area relative to weight.
Flashcard 2: What is the most accurate claim about falling speed in air for two objects of the same shape?
Answer: They fall at the same rate if air resistance is similar. Without air resistance, all objects fall equally fast.
Flashcard 3: Which statement best supports the claim that gravity helps keep planets in orbit around the Sun?
Answer: The Sun’s gravity pulls planets inward as they move forward. Orbital motion balances forward motion with inward pull.
Flashcard 4: Identify the best evidence that gravity can act at a distance without contact between objects.
Answer: Earth pulls the Moon, keeping it in orbit. Orbital motion proves gravity works across empty space.
Flashcard 5: Identify the best conclusion from this observation: jumping up always results in landing back on the ground.
Answer: Earth’s gravity pulls you back down. What goes up must come down due to Earth's gravity.
Flashcard 6: What evidence from everyday observations supports the claim that Earth has gravity?
Answer: Dropped objects fall downward toward the ground. This observable pattern demonstrates Earth's gravitational pull.
Flashcard 7: Which statement best supports the claim that gravity is a predictable force near Earth’s surface?
Answer: Objects consistently fall downward when released. Gravity's consistency makes it scientifically predictable.
Flashcard 8: Which statement best describes the direction of Earth’s gravitational pull near the surface?
Answer: Toward the center of Earth. Gravity pulls radially inward from all surface points.
Flashcard 9: Which option is a correct model of gravity using a stretched fabric and a heavy ball?
Answer: The heavy ball makes a dip that pulls smaller balls inward. The fabric dip simulates how massive objects curve space.
Flashcard 10: What observation best supports the claim that gravity acts even when you cannot see it?
Answer: A tossed ball always comes back down. Gravity acts continuously, even when not directly observed.
Flashcard 11: Which statement supports the claim that gravity is an attractive (pulling) force, not a pushing force?
Answer: Objects move toward Earth when released. Attraction means pulling together, not pushing apart.
Flashcard 12: Identify the best observation that supports the claim that gravity acts on all objects with mass.
Answer: Both a rock and a pencil fall when released. Different objects falling shows gravity affects all matter.
Flashcard 13: What is the main difference between mass and weight in a gravity model?
Answer: Mass stays the same; weight depends on gravity. Mass is constant; weight varies with gravitational field.
Flashcard 14: What is mass, the property that makes an object affected by gravity?
Answer: The amount of matter in an object. Mass determines how strongly gravity affects an object.
Flashcard 15: What is weight, and how is it related to gravity?
Answer: Weight is the force of gravity on an object. Weight measures gravitational force, unlike mass.
Flashcard 16: Which option correctly states how weight changes if gravity becomes weaker?
Answer: Weight decreases. Weight is proportional to gravitational strength.
Flashcard 17: What is gravity, in simple scientific terms, as used in 5th grade science?
Answer: A force that pulls objects toward each other, especially toward Earth. Gravity is the fundamental force of attraction between masses.
Flashcard 18: Choose the best claim supported by this model: a magnet pulls a paperclip without touching it.
Answer: Forces can act at a distance, like gravity. Magnetism demonstrates non-contact forces like gravity.
Flashcard 19: Which option best supports the claim that gravity is stronger when objects are closer together?
Answer: An object falls faster near Earth than far away in space. Gravitational force weakens with increasing distance.
Flashcard 20: Identify the correct conclusion from this observation: a book and a paper sheet drop, and the paper lands later.
Answer: Air resistance affects the paper more than the book. Paper's larger surface area creates more air drag.
Flashcard 21: What is gravity?
Answer: A force that pulls masses toward each other, strongest near Earth. Gravity is the universal attractive force between all objects with mass.
Flashcard 22: Which statement is correct: gravity gets stronger or weaker as distance increases?
Answer: Gravity gets weaker as distance increases. Gravitational force follows an inverse relationship with distance.
Flashcard 23: Identify the best model for gravity between Earth and the Moon: push away or pull together?
Answer: Pull together. Gravity is always an attractive force, never repulsive.
Flashcard 24: What evidence from daily life supports the claim that gravity acts on all objects with mass?
Answer: Both light and heavy objects fall when dropped. Gravity acts on all matter regardless of size or weight.
Flashcard 25: Which option best supports gravity as an attractive force: objects repel or objects attract?
Answer: Objects attract. Gravity only attracts; it never repels objects.
Flashcard 26: What does a scale measure that changes because of gravity: mass or weight?
Answer: Weight. Weight is the force of gravity on mass; mass stays constant.
Flashcard 27: Which claim is supported by a ball rolling back down a ramp after being pushed up?
Answer: Gravity pulls objects downward. The ball's return shows gravity overcomes upward motion.
Flashcard 28: What is the best observation-based claim if a tossed ball always comes back down?
Answer: Earth’s gravity pulls the ball back down. What goes up must come down due to Earth's gravitational pull.
Flashcard 29: Which option is a correct model for why planets stay in orbit: gravity pulls inward or gravity pushes outward?
Answer: Gravity pulls inward. Inward gravitational pull keeps planets in curved paths.
Flashcard 30: Identify the correct claim: gravity affects only heavy objects or gravity affects all masses?
Answer: Gravity affects all masses. Every object with mass experiences gravitational force.