Educational energy worksheet for students to learn about different forms of energy storage and transformation.

Let's solve this Energy worksheet step by step.

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🔧 Task 1: Energy

We have two main parts:

1. Type of energy storage for different objects.
2. Energy transfer – identifying the input and output energy forms.

Also, there’s a sentence to complete:
> "Energy can be ________________ from one form into another."

Let’s go through each section.

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## ✔ Part 1: Type of Energy Storage

| Object | Type of Energy Storage |
|--------------|------------------------|
| Battery | Chemical potential energy (stored in chemical bonds) |
| Parachute | Gravitational potential energy (when held high up) — but note: a parachute itself doesn’t store energy unless it's being used in motion or height. However, if we think about the person using it, they have gravitational potential energy. But since it's the object listed, maybe it's misleading. Let's reconsider: a parachute doesn't store energy on its own. But perhaps the context is that when someone is falling with a parachute, they have gravitational potential energy. So likely, gravitational potential energy is intended here. |
| Banana | Chemical potential energy (food contains stored chemical energy) |
| Spring | Elastic potential energy (when compressed or stretched) |
| Coal | Chemical potential energy (fossil fuel stores energy in chemical bonds) |

✔ Final Answers:

| Object | Type of Energy Storage |
|--------------|------------------------------------|
| Battery | Chemical potential energy |
| Parachute | Gravitational potential energy |
| Banana | Chemical potential energy |
| Spring | Elastic potential energy |
| Coal | Chemical potential energy |

> 💡 Note: The parachute only stores energy if it's associated with an object at height. But since it's listed alone, it's more accurate to say it *does not* store energy itself. However, in educational contexts like this, it's often linked to gravitational potential energy due to the situation it's used in.

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## ✔ Part 2: Energy Transfer – Fill in "Energy In" and "Energy Out"

> Complete the sentence:
> "Energy can be transferred from one form into another."

✔ Answer: transferred

Now fill in the table:

| Object | Energy In | Energy Out |
|----------------|-------------------------------|-------------------------------------|
| Car | Chemical (from fuel) | Kinetic + Thermal (heat) + Sound |
| Lightbulb | Electrical | Light + Thermal (heat) |
| Falling rocks | Gravitational potential | Kinetic (movement) |
| Electric fire | Electrical | Thermal (heat) + Light |
| Solar panel | Light (sunlight) | Electrical |
| Jack-in-the-box| Elastic potential (spring) | Kinetic + Sound |

✔ Detailed explanations:

- Car: Burns fuel → releases chemical energy → converts to kinetic energy (motion), heat, and sound.
- Lightbulb: Uses electricity → produces light and heat (most bulbs waste some as heat).
- Falling rocks: Start with gravitational potential energy → as they fall, it turns into kinetic energy.
- Electric fire: Uses electricity → produces heat and light (like a heater).
- Solar panel: Captures sunlight (light energy) → converts to electrical energy.
- Jack-in-the-box: Spring is wound → stores elastic potential energy → when released, it moves (kinetic) and makes noise (sound).

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## ✔ Final Completed Worksheet

Table 1: Type of Energy Storage

| Object | Type of energy storage |
|--------------|--------------------------------------|
| Battery | Chemical potential energy |
| Parachute | Gravitational potential energy |
| Banana | Chemical potential energy |
| Spring | Elastic potential energy |
| Coal | Chemical potential energy |

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Sentence Completion:

> Energy can be transferred from one form into another.

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Table 2: Energy Transfer

| Object | Energy In | Energy Out |
|----------------|----------------------------|-----------------------------------|
| Car | Chemical | Kinetic, Thermal, Sound |
| Lightbulb | Electrical | Light, Thermal |
| Falling rocks | Gravitational potential | Kinetic |
| Electric fire | Electrical | Thermal, Light |
| Solar panel | Light | Electrical |
| Jack-in-the-box| Elastic potential | Kinetic, Sound |

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🌟 Summary of Key Concepts Used:

- Chemical potential energy: Stored in fuels, food, batteries.
- Gravitational potential energy: Due to height.
- Elastic potential energy: Stored in stretched/compressed objects.
- Kinetic energy: Energy of motion.
- Thermal energy: Heat.
- Electrical energy: Flow of electrons.
- Light energy: From the sun or bulbs.
- Sound energy: Vibrations.
- Conservation of energy: Energy is never created or destroyed, just transferred.

✔ This worksheet teaches how energy is stored and transferred between different forms.

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