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Questions and Answers
What is the unit of work, energy and Power respectively?
What is the unit of work, energy and Power respectively?
- Joule(J), Joule(J), Watts(W) (correct)
- Speed, Newton, Momentum
- Joule(J), Watt(W),Joule(J)
- Meter
According to the principle of conservation of energy, what happens to energy?
According to the principle of conservation of energy, what happens to energy?
- It can be created
- It can be destroyed
- It remains constant in a closed system
- It changes form but cannot be created nor destroyed (correct)
What is the rate at which work is done known as?
What is the rate at which work is done known as?
- Energy
- Power (correct)
- Newton
- Meter per second
What is the formula for calculating work?
What is the formula for calculating work?
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Which of the following is a scalar quantity?
Which of the following is a scalar quantity?
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Why is energy not conserved in collisions between objects?
Why is energy not conserved in collisions between objects?
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What is power a measure of?
What is power a measure of?
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Which quantity is the ability to do work?
Which quantity is the ability to do work?
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What is the formula for calculating kinetic energy?
What is the formula for calculating kinetic energy?
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Which of the following represents a renewable source of energy?
Which of the following represents a renewable source of energy?
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