Work and Energy Review
Grade 12 Physics worksheet covering concepts of work, kinetic energy, potential energy, and the work-energy theorem.
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Work and Energy Review
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following is NOT a unit of energy?
Joule
Watt
calorie
electron-volt
2. When a force does negative work on an object, the object's kinetic energy:
Increases
Decreases
Remains constant
Becomes zero
1. Work is a scalar quantity.
True
False
2. Potential energy can be negative.
True
False
1. The work-energy theorem states that the net work done on an object is equal to the change in its energy.
2. energy is the energy an object possesses due to its motion.
1. A 2.0 kg object is lifted vertically by a force of 25 N for a distance of 3.0 m. Calculate the work done by the lifting force.
2. Explain the difference between conservative and non-conservative forces, providing an example of each.
Match each term on the left with its definition on the right.
1. Kinetic Energy
a. Energy stored due to position or state
2. Potential Energy
b. The rate at which work is done
3. Power
c. Energy an object possesses due to its motion
1. A 0.5 kg ball is dropped from a height of 10 m. Assuming no air resistance, calculate its speed just before it hits the ground using the conservation of energy principle.