Practice Forms Of Energy (4.4) - Work, Energy and Power

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10 questions

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Exercise
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is mechanical energy composed of?
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Think about motion and position.
Question 2.
Give an example of heat energy.
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Consider cooking!
3Question 3.
What type of energy is associated with the motion of an object?
- Potential Energy
- Kinetic Energy
- Chemical Energy
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Think about a moving car.
4Question 4.
True or False: Chemical energy is found in the bonds of chemical compounds.
- True
- False
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Think of food or batteries.
Question 5.
A roller coaster at the peak has potential energy of 4000 J. If it descends to the lowest point, what will its kinetic energy be (ignoring friction)?
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Consider energy conservation principles.
Question 6.
If a battery powers a flashlight for 10 hours using stored chemical energy and converts it to electrical energy, how can one analyze the efficiency of this conversion?
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Look up energy efficiencies of batteries.

6 more questions in this section. Enroll free to practise them all.