Question

bill nye energy video worksheet https://www.youtube.com/watch?v=bqnszmwtkgk

1. why do you get warm when you exercise?

questions for after the video:

1. why didnt the bowling ball pendulum hit bill nye in the face?
2. with the information you learned from the video in mind, how do we get our energy (theres more than one way)? explain how that energy converts itself from potential to kinetic energy.

classify the following as a type of potential (p) energy or kinetic (k) energy (use the letters k or p)

1. a bicyclist pedaling up a hill
2. a volleyball player spiking a ball
3. the chemical bonds in sugar
4. runners \on their marks\ at the start line of a race
5. a bowling ball rolling down the alley
6. a quarterback right before he throws the ball
7. a baseball thrown to second base
8. the wind blowing a plastic bag
9. sitting in the top of a tree
10. a bowling ball sitting on the rack

below name or draw with labels your own example to potential and kinetic energy.

1. example of potential energy:
2. example of kinetic energy:

Explanation:

Step1: Answer to question 18

During exercise, the body's cells break down glucose through cellular - respiration. Some of the energy released is in the form of heat, which makes you warm.

Step2: Answer to question 19

The bowling ball pendulum didn't hit Bill Nye because of the conservation of energy. As it swings, it exchanges potential and kinetic energy, but due to air - resistance and friction, it doesn't return to its exact starting height.

Step3: Answer to question 20

We get energy from food (chemical energy). When we eat food, the chemical energy in the food is converted to potential energy stored in our body. When we move, this potential energy (stored in ATP) is converted to kinetic energy. For example, when we run, the energy stored in our muscles is used to move our limbs.

Step4: Answer to question 21

A bicyclist pedaling up a hill has both kinetic energy (due to motion) and potential energy (due to height). But since the question asks for one type, as the bicyclist is moving, it has K (kinetic energy).

Step5: Answer to question 22

A volleyball player spiking a ball has K (kinetic energy) because the ball and the player's arm are in motion.

Step6: Answer to question 23

The chemical bonds in sugar have P (potential energy) as they store chemical - potential energy.

Step7: Answer to question 24

Runners "on their marks" at the start line of a race have P (potential energy) as they are in a ready - to - move position with stored energy.

Step8: Answer to question 25

A bowling ball rolling down the alley has K (kinetic energy) as it is in motion.

Step9: Answer to question 26

A quarterback right before he throws the ball has P (potential energy) as he is in a position with stored energy ready to throw.

Step10: Answer to question 27

A baseball thrown to second base has K (kinetic energy) as it is in motion.

Step11: Answer to question 28

The wind blowing a plastic bag has K (kinetic energy) as the plastic bag is in motion.

Step12: Answer to question 29

Sitting in the top of a tree has P (potential energy) due to height.

Step13: Answer to question 30

A bowling ball sitting on the rack has P (potential energy) as it is at a certain height and has stored energy.

Step14: Answer to question 31

An example of potential energy: A book sitting on a high shelf.

Step15: Answer to question 32

An example of kinetic energy: A car moving on the road.

Answer:

1. During exercise, cellular - respiration in cells releases heat as a by - product, making you warm.
2. Due to air - resistance and friction, the pendulum doesn't return to its exact starting height, so it doesn't hit Bill Nye.
3. We get energy from food. Chemical energy in food is converted to potential energy in our body and then to kinetic energy when we move.
4. K
5. K
6. P
7. P
8. K
9. P
10. K
11. K
12. P
13. P
14. A book sitting on a high shelf
15. A car moving on the road