Practice Forms Of Energy (2.2.3) - Work, Energy and Power

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9 questions

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6 sample questions

Question 1.
What is the formula for kinetic energy?
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Remember the equation includes mass and velocity.
Question 2.
Define potential energy.
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Think about height and weight.
3Question 3.
Which of the following is the correct formula for kinetic energy?
- KE = mv
- KE = (1/2)mv²
- KE = mgh
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Remember it includes velocity squared.
4Question 4.
Potential energy depends on what factors?
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Think about objects on a shelf.
Question 5.
A child who weighs 30 kg is on a swing at a height of 2 meters. Calculate the potential energy of the child. If they swing down, what will their kinetic energy be at the lowest point?
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Use conservation of energy.
Question 6.
A car with a mass of 900 kg is traveling at a velocity of 15 m/s. Calculate its kinetic energy. If this car hits a bump and rises, find the height it could reach while transforming all its kinetic energy into potential energy.
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Remember, energy conservation explains this transformation.

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