Science worksheet asking students to identify whether examples demonstrate potential or kinetic energy.

Problem Analysis:

The task involves identifying whether the given scenarios represent Potential Energy or Kinetic Energy. Here are the definitions to guide our reasoning:

- Potential Energy: Stored energy that is not currently doing work but has the potential to do work. It is often associated with position, height, or stored tension.
- Kinetic Energy: Energy of motion. An object has kinetic energy if it is moving.

Solution:

Let's analyze each scenario step by step:

1. The apple in the table is ______ energy.
- The apple is stationary on the table. It has the potential to fall due to its height above the ground, but it is not moving yet.
- Answer: Potential Energy

2. The apple falling from the table is ______ energy.
- The apple is in motion as it falls. Motion implies kinetic energy.
- Answer: Kinetic Energy

3. If the rock falls from the hill, it is ______ energy.
- The rock is in motion as it falls down the hill. Motion indicates kinetic energy.
- Answer: Kinetic Energy

4. If the rock is still, it is ______ energy.
- The rock is stationary and not moving. However, if it is at a certain height, it has the potential to fall and do work.
- Answer: Potential Energy

5. If the cyclist is still, he has ______ energy.
- The cyclist is not moving, so there is no kinetic energy. However, if he is elevated (e.g., on a hill), he could have potential energy.
- Answer: Potential Energy

6. If he is moving, he has ______ energy.
- The cyclist is in motion, which means he has kinetic energy.
- Answer: Kinetic Energy

7. If the yo-yo is still at the top, it is ______ energy.
- The yo-yo is stationary at the top. It has the potential to fall due to its height, indicating potential energy.
- Answer: Potential Energy

8. If the yo-yo is moving, it is ______ energy.
- The yo-yo is in motion, which means it has kinetic energy.
- Answer: Kinetic Energy

9. If the boy throws the ball, it is ______ energy.
- The ball is in motion after being thrown, indicating kinetic energy.
- Answer: Kinetic Energy

10. The ball on the boy’s hand is ______ energy.
- The ball is stationary in the boy’s hand. It has the potential to be thrown (doing work), so it has potential energy.
- Answer: Potential Energy

Final Answers:

1. Potential Energy
2. Kinetic Energy
3. Kinetic Energy
4. Potential Energy
5. Potential Energy
6. Kinetic Energy
7. Potential Energy
8. Kinetic Energy
9. Kinetic Energy
10. Potential Energy

Boxed Final Answer:

\[
\boxed{
\text{1. Potential Energy, 2. Kinetic Energy, 3. Kinetic Energy, 4. Potential Energy, 5. Potential Energy, 6. Kinetic Energy, 7. Potential Energy, 8. Kinetic Energy, 9. Kinetic Energy, 10. Potential Energy}
}
\]