Work, Power, and Energy Fundamentals
An introductory worksheet for 7th graders covering the basic concepts of work, power, and energy in physics.
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Work, Power, and Energy Fundamentals
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Read each question carefully and answer to the best of your ability. Show your work for any calculations.
1. What is the definition of work in physics?
The amount of effort put into an activity.
Force applied over a distance in the direction of the force.
The speed at which something is done.
The ability to do work.
2. Which of the following is the unit for power?
Joules (J)
Newtons (N)
Watts (W)
Meters (m)
1. Energy is the ability to do .
2. energy is stored energy due to an object's position or state.
3. The rate at which work is done is called .
1. If you push against a wall, but the wall does not move, you have done work.
True
False
1. Explain the difference between potential energy and kinetic energy. Give an example of each.
2. A student pushes a box with a force of 50 N over a distance of 5 m. How much work was done?
Look at the energy pyramid below and answer the question.
1. In an energy pyramid, what happens to the amount of available energy as you move up each trophic level?
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