3rd Grade Science Flashcards: Predicting Future Motion

What this deck covers

This deck focuses on Predicting Future Motion, giving you a quick way to review the definitions, rules, and examples that matter most for 3rd Grade Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: Which option best describes constant speed: equal distances in equal times or changing distances in equal times?

Answer: Equal distances in equal times. Constant speed means no acceleration or deceleration.

Flashcard 2: Which option best describes a straight line on a distance-time graph for equal time steps?

Answer: Constant speed (equal distance in equal time). Straight lines show unchanging speed.

Flashcard 3: What is a pattern in motion data?

Answer: A repeated or predictable change in position over time. Regular sequences help predict future positions.

Flashcard 4: Identify the next position: 1 m, 1 m, 2 m, 2 m, 3 m, 3 m,   m.

Answer: 4 m. Pattern alternates: single, single, double, double.

Flashcard 5: Which option best describes a distance-time graph that curves upward (gets steeper over time)?

Answer: Speeding up (distance increases faster each time). Curved upward means increasing speed.

Flashcard 6: What is the best definition of direction in motion when predicting where an object will go?

Answer: The way an object moves, such as left, right, up, or down. Direction tells which way motion occurs.

Flashcard 7: What is the best meaning of predict in science when you use a pattern in motion?

Answer: To state what will happen next based on a pattern. Scientists use patterns to forecast future events.

Flashcard 8: What does direction tell you when describing motion?

Answer: The way an object moves, such as left, right, up, or down. Direction shows which way motion occurs.

Flashcard 9: Which option is the best prediction: Positions are $0$ cm, $2$ cm, $4$ cm, $6$ cm; next is __ cm.

Answer: $8$ cm. The pattern increases by $2$ cm each time.

Flashcard 10: Which option is the best prediction: A pendulum goes Left, Center, Right, Center, Left, __.

Answer: Center. Pendulums pass through center between extremes.

Flashcard 11: Which graph best shows slowing down on a position–time graph: line gets steeper or line gets flatter?

Answer: Line gets flatter over time. Flatter slope means slower motion.

Flashcard 12: What is a repeating back-and-forth motion pattern called?

Answer: Oscillation (back-and-forth motion). Like a pendulum swinging repeatedly.

Flashcard 13: Identify the pattern type: an object travels less distance each second than the second before.

Answer: Slowing down (decreasing speed). Deceleration means covering less ground each interval.

Flashcard 14: What is the best definition of a reference point used to describe motion?

Answer: A fixed place used to compare an object's position. Reference points help measure changes in position.

Flashcard 15: What is the best prediction when an object moves the same distance each second?

Answer: It will keep moving that same distance each second. Constant speed means equal distances in equal times.

Flashcard 16: Which option shows the next position: 2, 4, 6, 8, __ if each step increases by $2$?

Answer: $10$. Add $2$ to $8$ following the pattern.

Flashcard 17: What is the next position if a ball is at $1$ m, $3$ m, $5$ m, $7$ m at equal times?

Answer: $9$ m. Each position increases by $2$ m from the previous.

Flashcard 18: Which tool is best for recording an object's position at equal time intervals?

Answer: A data table of position and time. Tables organize measurements systematically over time.

Flashcard 19: Which option best predicts motion if a pattern has stayed the same for many cycles?

Answer: Continue the same pattern for the next cycle. Consistent patterns likely continue unchanged.

Flashcard 20: Use the rule: a runner goes $4$ m each second; how far in $6$ s?

Answer: $24$ m. $4$ m/s × $6$ s = $24$ m total.

Flashcard 21: Identify the next shape in the repeating path: Up, Up, Down, Up, Up, Down, __.

Answer: Up. The pattern repeats every three movements.

Flashcard 22: Identify the next direction pattern: left, right, left, right, left,   .

Answer: Right. Direction alternates in a simple pattern.

Flashcard 23: What tool is used to measure time so you can find a motion pattern accurately?

Answer: A stopwatch or clock. Time measurement helps identify regular intervals in patterns.

Flashcard 24: Identify the next distance moved each second: $5$ m, $4$ m, $3$ m, $2$ m,   m.

Answer: $1$ m. Distance decreases by $1$ m each second.

Flashcard 25: What is a simple rule to find total distance for constant speed?

Answer: Total distance $=$ (distance each time) $imes$ (number of times). Multiply speed by time for constant motion.

Flashcard 26: What is the best prediction when a pattern shows the object stops (positions stay the same)?

Answer: It will remain at the same position until a force changes it. Objects at rest stay at rest without forces.

Flashcard 27: Identify the next position: 2 m, 4 m, 6 m, 8 m,   m (equal time steps).

Answer: 10 m. Pattern increases by 2 m each time.

Flashcard 28: Which option best describes how a repeating motion helps prediction?

Answer: Knowing one cycle lets you tell positions at later times. Cycles repeat, so future matches past patterns.

Flashcard 29: Identify the next distance moved each second: $1$ m, $2$ m, $3$ m, $4$ m,   m.

Answer: $5$ m. Distance increases by $1$ m each second.

Flashcard 30: Which graph best shows speeding up on a position–time graph: line gets steeper or line gets flatter?

Answer: Line gets steeper over time. Steeper slope means faster motion.

Flashcard 31: What does it mean if an object is not changing position over time?

Answer: The object is not moving (it is at rest). No position change means no movement.

Flashcard 32: What is the next position if a toy car moves $3$ squares each second and starts at square $0$ after $4$ seconds?

Answer: Square $12$. $3$ squares/second × $4$ seconds = $12$ squares total.

Flashcard 33: Identify the pattern: a toy car moves $2$ cm each second; where will it be after $5$ s?

Answer: $10$ cm from the start. $2$ cm/s × $5$ s = $10$ cm total distance.

Flashcard 34: Identify the next position: $10$ m, $8$ m, $6$ m, $4$ m,   m (equal time steps).

Answer: $2$ m. Pattern subtracts $2$ m each step.

Flashcard 35: Which option shows the next position: 12, 10, 8, 6, __ if the pattern subtracts $2$ each time?

Answer: $4$. Subtract $2$ from $6$ to continue the pattern.

Flashcard 36: What is the best definition of position when tracking motion patterns?

Answer: An object's location compared to a reference point. Position describes where something is relative to a starting point.

Flashcard 37: What is a motion pattern when an object repeats the same movement in the same order?

Answer: A repeating sequence of positions over time. Objects that move in cycles show predictable sequences.

Flashcard 38: Identify the pattern type: a Ferris wheel car moves around the center again and again.

Answer: Circular (around-and-around) motion. Circular paths repeat after one complete revolution.

Flashcard 39: Identify the next direction in the repeating pattern: Left, Right, Left, Right, __.

Answer: Left. The pattern alternates between two directions.

Flashcard 40: Identify the next position: 12 m, 9 m, 6 m, 3 m,   m (equal time steps).

Answer: 0 m. Pattern decreases by 3 m each time.

Flashcard 41: A toy car moves 1 m each second. What distance does it travel in 5 s?

Answer: 5 m. Distance = speed × time = 1 m/s × 5 s.

Flashcard 42: Identify the missing value: A pattern repeats every $4$ beats: Clap, Tap, Tap, Stomp, Clap, Tap, __.

Answer: Tap. The $4$-beat pattern repeats: position $7$ matches position $3$.

Flashcard 43: What does it mean to predict future motion?

Answer: To use a pattern in past motion to tell where an object will be later. Past patterns help determine future positions.

Flashcard 44: What is a motion pattern in science?

Answer: A repeated way an object moves that can be used to predict later motion. Patterns help scientists know what will happen next.

Flashcard 45: Which option shows speeding up: equal times but distances are $2$, $4$, $6$, $8$ m?

Answer: Speeding up (distance per equal time increases). Each distance is $2$ m more than the previous.

Flashcard 46: Identify the next time in a repeating event: clap at 0 s, 2 s, 4 s, 6 s,   s.

Answer: 8 s. Claps occur every 2 seconds.

Flashcard 47: Which option shows the next position: 5, 8, 11, 14, __ if the pattern adds $3$ each time?

Answer: $17$. Continue adding $3$ to maintain the sequence.

Flashcard 48: Identify the pattern type: an object travels farther each second than the second before.

Answer: Speeding up (increasing speed). Acceleration means covering more ground each interval.

Flashcard 49: What does the word "motion" mean in science?

Answer: Motion is a change in position over time. Objects change location as time passes.

Flashcard 50: What is the correct conclusion if an object's position does not change over time?

Answer: The object is not moving (it is at rest). No position change means zero velocity.

Flashcard 51: What does it mean to predict an object's future motion?

Answer: To state where it will be or how it will move based on a pattern. Uses observed patterns to forecast future behavior.

Flashcard 52: Identify the best prediction: a swing goes forward, back, forward, back in equal times; what is next?

Answer: Forward. Pendulum pattern alternates direction regularly.

Flashcard 53: What is one sign that an object has a repeating motion pattern?

Answer: It returns to the same positions over equal time intervals. Repeating motion returns to same spots regularly.

Flashcard 54: What is a cycle in motion?

Answer: One complete repeat of a motion pattern. Like a swing going back and forth once.

Flashcard 55: Which tool is most useful for measuring time when tracking a motion pattern?

Answer: A stopwatch or clock. Time measurement is key for tracking patterns.

Flashcard 56: Identify the pattern type: a swing moves forward, then backward, repeating the same path.

Answer: Back-and-forth (oscillating) motion. Swings repeat the same arc path continuously.

Flashcard 57: Identify the next distance traveled in equal times: $5$ cm, $10$ cm, $15$ cm,   cm.

Answer: $20$ cm. Pattern adds $5$ cm each time: $15 + 5 = 20$ cm.

Flashcard 58: Identify the next position: $1$ m, $3$ m, $5$ m, $7$ m,   m (equal time steps).

Answer: $9$ m. Pattern adds $2$ m each step.

Flashcard 59: Identify the next position: $1$ m, $2$ m, $4$ m, $8$ m,   m after equal times.

Answer: $16$ m. Pattern doubles each time: $8 × 2 = 16$ m.

Flashcard 60: Identify the next position: $0$ m, $2$ m, $4$ m, $6$ m,   m (equal time steps).

Answer: $8$ m. Pattern adds $2$ m each step.

Flashcard 61: Which option shows slowing down: equal times but distances are $8$, $6$, $4$, $2$ m?

Answer: Slowing down (distance per equal time decreases). Each distance is $2$ m less than the previous.

Flashcard 62: Identify the next position if an object moves backward $2$ m each second: 10,8,6,_.

Answer: $4$ m. Subtracting $2$ m each time: $6 - 2 = 4$ m.

Flashcard 63: Identify the motion: an object's position goes $0$ m, $2$ m, $4$ m, $6$ m at equal times; speed is  ?

Answer: Constant speed. Equal distances per time interval means unchanging speed.

Flashcard 64: Choose the correct prediction: a swing is left, center, right, center, left; what is the next position?

Answer: Center. Swing pattern repeats: left, center, right, center.

Flashcard 65: Identify the next position: $0$ m, $3$ m, $6$ m, $9$ m,   m after equal times.

Answer: $12$ m. Pattern adds $3$ m each time: $9 + 3 = 12$ m.

Flashcard 66: What is a motion pattern?

Answer: A repeated way an object moves that can be used to predict future motion. Patterns repeat predictably, allowing future position forecasts.

Flashcard 67: Which statement is the most accurate prediction from a pattern: "same change each step"?

Answer: The next value will change by the same amount again. Consistent patterns continue their established trend.

Flashcard 68: What does it mean if equal time intervals show equal changes in position?

Answer: The object is moving at a constant speed. Same distance covered in same time means steady speed.

Flashcard 69: Which option shows motion with a repeating pattern: 1,3,1,3,1,_ (meters)?

Answer: $3$ m. Pattern alternates between $1$ and $3$ m.

Flashcard 70: Choose the correct prediction: positions are $0$ m at $0$ s and $3$ m at $1$ s; where at $2$ s?

Answer: $6$ m. Moves $3$ m per second, so $3$ m × $2$ s = $6$ m.

Flashcard 71: Which graph best shows constant speed: a straight line on a position–time graph or a curved line?

Answer: A straight line on a position–time graph. Straight lines show uniform motion.

Flashcard 72: Identify the missing value: time (s) $0,1,2,3$; position (m) 0,2,4,_.

Answer: $6$ m. Position increases by $2$ m each second: $4 + 2 = 6$ m.

Flashcard 73: What does it mean if an object is at $5$ m at $t=1$ s and still at $5$ m at $t=2$ s?

Answer: It is not moving (it is at rest). Same position at different times means no motion.

Flashcard 74: Identify the pattern type: an object moves the same distance every second.

Answer: Constant speed (equal distances in equal times). Speed stays the same when distance per time is constant.