8th Grade Science worksheets - Edform - Free Printable
Educational worksheet: 8th Grade Science worksheets - Edform. Download and print for classroom or home learning activities.
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Step-by-step solution for: 8th Grade Science worksheets - Edform
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Show Answer Key & Explanations
Step-by-step solution for: 8th Grade Science worksheets - Edform
Let's solve the worksheet titled "Potential or Kinetic?" step by step.
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- Potential Energy: Stored energy. It is energy that is *waiting to work* — for example, due to position, height, or state.
- Kinetic Energy: Energy of motion. It is energy that is *actively working* because something is moving.
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Now let’s go through each sentence and determine whether it describes potential or kinetic energy.
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- The apple is at rest on the table (not moving).
- But it has height, so it has gravitational potential energy.
- ✔ Answer: Potential
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- The apple is now in motion — falling.
- Motion means kinetic energy.
- ✔ Answer: Kinetic
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- The rock is falling → it's moving.
- So, it has kinetic energy.
- ✔ Answer: Kinetic
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- The rock is not moving → at rest.
- But it's at a height (on a hill), so it has stored energy.
- ✔ Answer: Potential
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- Cyclist is not moving → no motion.
- But he may be at a height (e.g., on a hill) or just resting.
- Since he's not moving, his energy is potential.
- ✔ Answer: Potential
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- He is riding the bike → in motion.
- Motion = kinetic energy.
- ✔ Answer: Kinetic
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- Yoyo is at the top (highest point), not moving.
- At this point, it has maximum gravitational potential energy.
- ✔ Answer: Potential
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- The yoyo is swinging down/up → in motion.
- So, it has kinetic energy.
- ✔ Answer: Kinetic
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- The ball is being thrown → it is in motion.
- So, it has kinetic energy.
- ✔ Answer: Kinetic
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- The ball is at rest on the hand → not moving.
- But it's held up (has height), so it has potential energy.
- ✔ Answer: Potential
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| Sentence | Answer |
|--------|--------|
| The apple in the table is _______ energy. | Potential |
| The apple falling from the table is _______ energy. | Kinetic |
| If the rock falls from the hill, it is _______ energy. | Kinetic |
| If the rock is still, it is _______ energy. | Potential |
| If the cyclist is still, he has _______ energy. | Potential |
| If he is moving, he has _______ energy. | Kinetic |
| If the yoyo is still at the top, he has _______ energy. | Potential |
| If the yoyo is moving, it is _______ energy. | Kinetic |
| If the boy throws the ball, it is _______ energy. | Kinetic |
| The ball on the boy's hand is _______ energy. | Potential |
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- Potential Energy = stored, at rest, due to position/height.
- Kinetic Energy = active, due to motion.
✔ All answers are based on whether the object is moving (kinetic) or at rest with stored energy (potential).
Let me know if you'd like a printable version or help with formatting!
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🔍 Understanding the Concepts:
- Potential Energy: Stored energy. It is energy that is *waiting to work* — for example, due to position, height, or state.
- Kinetic Energy: Energy of motion. It is energy that is *actively working* because something is moving.
---
Now let’s go through each sentence and determine whether it describes potential or kinetic energy.
---
✔ 1. The apple in the table is _______ energy.
- The apple is at rest on the table (not moving).
- But it has height, so it has gravitational potential energy.
- ✔ Answer: Potential
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✔ 2. The apple falling from the table is _______ energy.
- The apple is now in motion — falling.
- Motion means kinetic energy.
- ✔ Answer: Kinetic
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✔ 3. If the rock falls from the hill, it is _______ energy.
- The rock is falling → it's moving.
- So, it has kinetic energy.
- ✔ Answer: Kinetic
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✔ 4. If the rock is still, it is _______ energy.
- The rock is not moving → at rest.
- But it's at a height (on a hill), so it has stored energy.
- ✔ Answer: Potential
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✔ 5. If the cyclist is still, he has _______ energy.
- Cyclist is not moving → no motion.
- But he may be at a height (e.g., on a hill) or just resting.
- Since he's not moving, his energy is potential.
- ✔ Answer: Potential
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✔ 6. If he is moving, he has _______ energy.
- He is riding the bike → in motion.
- Motion = kinetic energy.
- ✔ Answer: Kinetic
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✔ 7. If the yoyo is still at the top, he has _______ energy.
- Yoyo is at the top (highest point), not moving.
- At this point, it has maximum gravitational potential energy.
- ✔ Answer: Potential
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✔ 8. If the yoyo is moving, it is _______ energy.
- The yoyo is swinging down/up → in motion.
- So, it has kinetic energy.
- ✔ Answer: Kinetic
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✔ 9. If the boy throws the ball, it is _______ energy.
- The ball is being thrown → it is in motion.
- So, it has kinetic energy.
- ✔ Answer: Kinetic
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✔ 10. The ball on the boy's hand is _______ energy.
- The ball is at rest on the hand → not moving.
- But it's held up (has height), so it has potential energy.
- ✔ Answer: Potential
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✔ Final Answers:
| Sentence | Answer |
|--------|--------|
| The apple in the table is _______ energy. | Potential |
| The apple falling from the table is _______ energy. | Kinetic |
| If the rock falls from the hill, it is _______ energy. | Kinetic |
| If the rock is still, it is _______ energy. | Potential |
| If the cyclist is still, he has _______ energy. | Potential |
| If he is moving, he has _______ energy. | Kinetic |
| If the yoyo is still at the top, he has _______ energy. | Potential |
| If the yoyo is moving, it is _______ energy. | Kinetic |
| If the boy throws the ball, it is _______ energy. | Kinetic |
| The ball on the boy's hand is _______ energy. | Potential |
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📝 Summary:
- Potential Energy = stored, at rest, due to position/height.
- Kinetic Energy = active, due to motion.
✔ All answers are based on whether the object is moving (kinetic) or at rest with stored energy (potential).
Let me know if you'd like a printable version or help with formatting!
Parent Tip: Review the logic above to help your child master the concept of 8th grade science worksheet printable.
