Kinetic and Potential Energy Worksheets - 15 Worksheets Library - Free Printable

Let's solve this "Forms of Energy" worksheet step by step. The goal is to look at each image and identify the correct form of energy it represents, then write the appropriate word from the list provided in the box below each picture.

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Step 1: Understand the Energy Types

The worksheet provides a list of energy types:

- Kinetic – energy of motion
- Potential – stored energy due to position or state
- Sound – energy produced by vibrations
- Mechanical – energy associated with motion or position (often includes kinetic and potential)
- Light – electromagnetic radiation visible to the eye
- Elastic – stored energy in stretched or compressed materials
- Radiant – energy that travels in waves (like light)
- Chemical – energy stored in chemical bonds
- Electrical – energy from electric charges
- Stored – general term for potential energy (can include chemical, elastic, gravitational)
- Nuclear – energy stored in atomic nuclei
- Heat – thermal energy

Note: Some categories are broad (e.g., "Mechanical" includes both kinetic and potential). We need to choose the most specific and accurate term based on the image.

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Step 2: Analyze Each Image

#### Row 1:
1. Three steam-powered engines
- Steam is being released → motion and heat involved
- This is kinetic energy (motion) and thermal (heat), but the main source is mechanical energy (since engines convert heat into motion).
- However, since the image shows steam pushing pistons, it’s mechanical energy.
✔ Answer: Mechanical

2. Two batteries
- Batteries store energy chemically
- This is chemical energy
✔ Answer: Chemical

3. Angry face with red cheeks and sweat
- This represents heat or thermal energy
✔ Answer: Heat

#### Row 2:
4. Salad (vegetables)
- Food contains stored energy in chemical bonds
- This is chemical energy
✔ Answer: Chemical

5. Hand turning a key in a lock
- The hand is applying force, causing motion
- This involves mechanical energy (motion and work)
✔ Answer: Mechanical

6. Dam with water flowing out
- Water at height has potential energy; when it flows, it becomes kinetic
- But the focus is on the stored energy before release → Potential energy (gravitational potential)
✔ Answer: Potential

#### Row 3:
7. Tangled ball of rubber bands
- Rubber bands are stretched → stored elastic energy
✔ Answer: Elastic

8. Lamp emitting light
- Light bulb produces light energy
✔ Answer: Light

9. Sun shining
- The sun emits radiant energy (light and heat)
- Best answer is Radiant
✔ Answer: Radiant

#### Row 4:
10. Boombox playing music
- Music = sound
- So this is sound energy
✔ Answer: Sound

11. Person sliding down a hill
- Motion → kinetic energy
- Also, they had potential energy at the top
- But the image shows motion → Kinetic
✔ Answer: Kinetic

12. Person swinging on a swing
- Swinging involves motion → kinetic
- Also has potential energy at the peak
- But the image shows motion → Kinetic
✔ Answer: Kinetic

Wait — let’s double-check. Is there a better category?

Actually, mechanical energy often refers to the combination of kinetic and potential in motion systems like swings. But since the question asks to pick one, and the swing is in motion, Kinetic is acceptable.

But Mechanical is broader and more appropriate for moving objects like swings.

However, note: “Mechanical” is listed as a separate option, and it includes both kinetic and potential.

So for a swing, it's best labeled as Mechanical energy.

✔ Answer: Mechanical

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Final Answers:

| Image | Answer |
|------|--------|
| 1. Steam engines | Mechanical |
| 2. Batteries | Chemical |
| 3. Angry face | Heat |
| 4. Salad | Chemical |
| 5. Hand turning key | Mechanical |
| 6. Dam | Potential |
| 7. Rubber bands | Elastic |
| 8. Lamp | Light |
| 9. Sun | Radiant |
| 10. Boombox | Sound |
| 11. Person sliding | Kinetic |
| 12. Swing | Mechanical |

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Corrected Final Answer Key (Boxed):

```
1. Mechanical
2. Chemical
3. Heat
4. Chemical
5. Mechanical
6. Potential
7. Elastic
8. Light
9. Radiant
10. Sound
11. Kinetic
12. Mechanical
```

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✔ Explanation Summary:

- Mechanical: Objects in motion (engines, key, lamp? no—wait, lamp is light). Wait — lamp is light, so not mechanical.
- Only apply mechanical to things involving physical movement or work.

Let’s recheck #5: Hand turning a key in a lock
→ This is mechanical energy because the hand applies force to move the key → mechanical work.

#10: Boombox → makes sound → Sound energy
#11: Sliding → Kinetic
#12: Swing → Mechanical (because it's a system with both kinetic and potential, but "mechanical" is the category)

Yes, that’s consistent.

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✔ Final Answer List (in order):

1. Mechanical
2. Chemical
3. Heat
4. Chemical
5. Mechanical
6. Potential
7. Elastic
8. Light
9. Radiant
10. Sound
11. Kinetic
12. Mechanical

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This completes the worksheet! Let me know if you'd like a printable version or explanation for any specific image.