Test
Work, energy and power test
This 11th-grade test helps students practice concepts related to work, energy, and power through multiple-choice questions, including definitions, principles of energy conservation, efficiency, and unit identification, encouraging conceptual understanding and application skills.
By Edform · Physics · Grade 11 · Published Oct 15, 2026 · New
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Questions
- Which of the following best defines work in physics?
- Which of the following are correct statements about the law of conservation of energy?
- A machine with 100% efficiency converts all input energy into useful work.
- What is the SI unit of power?
- A 50 kg box is lifted vertically 4 meters. How much work is done on the box? (Use g = 9.8 m/s²)
- What type of energy does a moving car have due to its motion?
- Which of the following are examples of potential energy?
- If a machine does 500 J of work in 10 seconds, what is its power output?
- The efficiency of a real machine is always less than 100%.
- Fill in the blank: The energy an object has because of its position above the ground is called ________ energy.
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