Lesson: Chapter 18 — Work, Energy and Power

18.2. Energy 3 of 4 Reset answers

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Question 3

A raised hammer and a rolling trolley both hold the same form of energy. Which form is it?

A Electrical energy B Heat energy C Sound energy D Mechanical energy

The right answer is the one marked above.

Mechanical energy. Mechanical energy is what a body holds because of its position or its motion. The hammer holds it by position, the trolley by motion.

This is the one form of the six that the rest of the chapter takes further.

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