Physics
Grade-7
Easy
Question
Direction :Identify the correct transformation of energy in the following.
What changes electrical energy into light and sound energy?
- Battery
- Lightbulb
- Alarm clock
- Alarm clock
Hint:
The alarm clocks converts electrical energy into sound energy.
The correct answer is: Alarm clock
- The alarm clocks produce sound waves.
- The batteries of alarm clocks create electrical energy.
- The electrical energy is converted into sound energy.
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