Physics
Grade-7
Easy
Question
Direction : Identify the correct transformation of energy in the following.
Lightbulb
- Electrical to light
- Light to electrical
- Electrical to heat
- Electrical to heat and light
Hint:
The electrical energy is converted to heat and light energy in light bulbs.
The correct answer is: Electrical to heat and light
- Electrical energy is the source of energy consumed in lightbulbs.
- The electrical energy is converted into light energy to make the lightbulb glow.
- The heat energy is produced in the presence of light energy in the bulbs.
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What is the new gravitational potential energy when the height becomes
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What is the new gravitational potential energy when the height becomes
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What is the new gravitational potential energy when the height becomes
5 h
What is the new gravitational potential energy when the height becomes
5 h
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