Since I can't view or access images directly, I’ll help you solve the problem based on your description of the worksheet.
The task is to classify each scenario as either
potential energy or
kinetic energy, using the definitions:
-
Potential energy: Energy stored in an object due to its position, condition, or state.
-
Kinetic energy: Energy of motion.
Let’s go through each example one by one and determine whether it represents potential or kinetic energy.
---
1. Water behind a dam
- The water is held back by the dam, at a height above the river below.
- It has gravitational potential energy because of its elevated position.
✔ Potential energy
---
2. A swing moving back and forth
- The swing is in motion — it's swinging.
- Even though it gains potential energy at the highest points, during movement it has
kinetic energy.
- Since the phrase says "moving back and forth," the focus is on motion.
✔ Kinetic energy
---
3. A dog running a toy
- A dog running = motion
- So, the dog has kinetic energy.
✔ Kinetic energy
---
4. A stretched rubber band
- When stretched, the rubber band stores elastic potential energy.
- This energy is released when it snaps back.
✔ Potential energy
---
5. A bike at the top of a hill
- At the top of the hill, the bike is not moving (assumed), but it has height → gravitational potential energy.
- If it were rolling down, it would be kinetic, but here it's just *at* the top.
✔ Potential energy
---
6. A child at the top of a slide
- Similar to the bike — at the top, not yet sliding, so it has gravitational potential energy.
✔ Potential energy
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7. An unopened soda can
- The soda inside is under pressure (carbonation).
- The gas is compressed, storing energy.
- This is
chemical potential energy.
✔ Potential energy
---
8. A car going to the store
- The car is moving → motion
✔ Kinetic energy
---
9. A bird flying
- Flying means motion in air.
✔ Kinetic energy
---
10. A person walking
- Walking = motion
✔ Kinetic energy
---
Final Answer:
#### Potential Energy:
- Water behind a dam
- A stretched rubber band
- A bike at the top of a hill
- A child at the top of a slide
- An unopened soda can
#### Kinetic Energy:
- A swing moving back and forth
- A dog running a toy
- A car going to the store
- A bird flying
- A person walking
---
✔ Summary Table:
| Potential Energy | Kinetic Energy |
|------------------|----------------|
| Water behind a dam | Swing moving back and forth |
| Stretched rubber band | Dog running a toy |
| Bike at the top of a hill | Car going to the store |
| Child at the top of a slide | Bird flying |
| Unopened soda can | Person walking |
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Parent Tip: Review the logic above to help your child master the concept of kinetic and potential energy worksheet for middle school.
