Faster objects have more energy

Question 1

Which has the most energy of motion?

• A. the same cyclist riding slowly
• B. the same cyclist standing still
• C. a parked bike
• D. a cyclist riding fast downhill

Question 2

A ball rolled down a ramp from three different heights and hit a wooden block. Which release height gave the ball the most energy when it hit?

• A. low
• B. medium
• C. high

Question 3

True or false? Speed has nothing to do with energy.

• A. True
• B. False

Question 4

A bowling ball is rolled slowly, then quickly. When does it knock down more pins?

• A. when it is rolled quickly
• B. it is always the same
• C. when it is rolled slowly
• D. it never knocks pins down

Question 5

A ball rolled down a ramp from three different heights and hit a wooden block. Which release height gave the ball the most energy when it hit?

• A. low
• B. medium
• C. high

Question 6

True or false? A still object has no energy of motion.

• A. True
• B. False

Question 7

Why do roads near schools have low speed limits?

• A. Speed does not change a car's energy.
• B. Slow cars use more fuel.
• C. Fast cars are quieter.
• D. Slower cars have less energy, so they stop more quickly and cause less harm if they crash.

Question 8

A ball rolled down a ramp from three heights and hit a block. How much further was the block pushed from the high start than from the low start?

Answer cm

Question 9

True or false? A slow ball has more energy than the same ball moving fast.

• A. True
• B. False

Question 10

Why do roads near schools have low speed limits?

• A. Slower cars have less energy, so they stop more quickly and cause less harm if they crash.
• B. Fast cars are quieter.
• C. Speed does not change a car's energy.
• D. Slow cars use more fuel.

Question 11

A ball rolled down a ramp from three heights and hit a block. How much further was the block pushed from the high start than from the low start?

Answer cm

Question 12

True or false? A ball rolled from a higher ramp moves more slowly at the bottom.

• A. True
• B. False

Question 13

Why does a fast-moving football hurt more to stop than a slow one?

• A. It is heavier when it moves fast.
• B. Slow balls have no energy.
• C. It has more energy of motion to transfer to your hands.
• D. Fast balls are hotter.

Question 14

A ball rolled down a ramp from three heights and hit a block. How much further was the block pushed from the high start than from the low start?

Answer cm

Question 15

True or false? Speed has nothing to do with energy.

• A. True
• B. False

Question 16

Which has the most energy of motion?

• A. the same cyclist riding slowly
• B. a cyclist riding fast downhill
• C. the same cyclist standing still
• D. a parked bike