Educational worksheet helping students distinguish between potential and kinetic energy through real-life examples.

Let's solve the worksheet step by step and explain each answer based on the definitions provided:

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Definitions:

- Potential Energy = stored energy that is waiting to work.
- Kinetic Energy = energy that is working (in motion).

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Now, let’s go through each question.

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1. Light Switch

> When the light switch is off, it is potential energy.
> When the light switch is on, it is kinetic energy.

✔ Explanation:
When the switch is off, the electrical energy is stored and not being used — this is potential energy.
When the switch is on, electricity flows and the bulb lights up — energy is being used → kinetic energy.

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2. Toaster

> If the toaster switch is on, it is kinetic energy.
> If the toaster switch is off, it is potential energy.

✔ Explanation:
When the switch is on, the toaster heats up and works → energy is in use → kinetic energy.
When the switch is off, no energy is being used; it’s just ready to be turned on → potential energy.

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3. Roller Coaster

> If the roller coaster is still, it is potential energy.
> If it is moving, it is kinetic energy.

✔ Explanation:
At the top of a hill or when stopped, the roller coaster has height and stored gravitational energy → potential energy.
When it moves down the track, it has motion → kinetic energy.

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4. Yo-Yo

> If the yo-yo is still, it is potential energy.
> If the yo-yo is moving, it is kinetic energy.

✔ Explanation:
When the yo-yo is at rest (e.g., at the top or bottom), it has stored energy due to position or tension → potential energy.
When it's spinning or falling, it's in motion → kinetic energy.

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5. Light Bulb

> If the light is on, it is kinetic energy.
> If the light is off, it is potential energy.

✔ Explanation:
When the light is on, electrical energy is converted into light and heat — energy is actively being used → kinetic energy.
When the light is off, energy is stored in the circuit but not being used → potential energy.

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✔ Final Answers:

| Question | Answer |
|--------|--------|
| When the light switch is ___ | off → potential energy |
| When the light switch is ___ | on → kinetic energy |
| If the toaster switch is ___ | on → kinetic energy |
| If the toaster switch is ___ | off → potential energy |
| If the roller coaster is still, it is ___ energy | potential |
| If it is moving, it is ___ energy | kinetic |
| If the yo-yo is still, it is ___ energy | potential |
| If the yo-yo is moving, it is ___ energy | kinetic |
| If the light is on, it is ___ energy | kinetic |
| If the light is off, it is ___ energy | potential |

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This worksheet helps students understand the difference between potential (stored) and kinetic (active/motion) energy using everyday examples. The key idea is:
➡️ Energy stored = Potential
➡️ Energy in use = Kinetic

Let me know if you'd like a printable version or visual explanation!