Practice Kinetic Energy (4.3.1) - Work, Energy and Power

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11 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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5 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the formula for calculating kinetic energy?
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Remember, the formula involves mass and velocity.
Question 2.
What units are used for kinetic energy?
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Think about the units of energy.
3Question 3.
What is the formula for kinetic energy?
- KE = mv
- KE = ½ mv²
- KE = 2mv
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The formula has that special 'half' in front.
4Question 4.
True or False: Kinetic energy depends on the mass and speed of an object.
- True
- False
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Recall the definition of kinetic energy.
Question 5.
A 2000 kg truck and a 1000 kg car are both traveling at 30 m/s. Calculate their kinetic energies and discuss how the mass affects them.
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Use the KE formula for both vehicles.
Question 6.
If you increase the mass of an object but keep its kinetic energy the same, how will its velocity change? Provide an example.
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Reconsider the relationship between mass, velocity, and the KE formula.

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