Physics
Grade-7
Easy
Question
Direction :Identify the correct transformation of energy in the following.
The diagram shows a complete circuit with a battery and a buzzer making noise. This circuit works by transforming –
- Chemical energy to electrical to sound
- Electrical energy to thermal to light
- Sound energy to electrical to chemical
- Muscular energy to electrical to sound
Hint:
The batteries connected to a buzzer create chemical energy converted to electrical and sound energies.
The correct answer is: Chemical energy to electrical to sound
- The batteries have positive and negatively charged ions that create chemical energy.
- The chemical energy is converted into electrical energy for the battery terminals.
- The electrical energy is transformed into sound energy when it is connected to a buzzer to make a sound.
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