Practice Implication (2.6.2) - Work, Energy and Power

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8 questions

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6 sample questions

Question 1.
What is the law of conservation of energy?
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Think about energy changes in physical systems.
Question 2.
Give an example of energy transformation.
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Consider how energy moves in a swinging motion.
3Question 3.
What does the law of conservation of energy state?
- Energy can be created
- Energy can be destroyed
- Energy can only change forms
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Consider what happens to energy in different scenarios.
4Question 4.
In an isolated system, what happens to total energy?
- True
- False
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Think about energy in a closed environment.
Question 5.
A ball of mass 2 kg is dropped from a height of 10 meters. Calculate its velocity just before it strikes the ground using energy conservation principles.
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Remember the energy conservation principle!
Question 6.
A 1 kg object transitions from a height of 5 meters to ground level. Calculate the change in potential energy.
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Consider potential energy before it falls and after it lands!

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