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Work & Energy Review

This chapter covers fundamental concepts of work and energy in physics. It explores how speedometers measure speed, the principle of inertia, and the definition of machines that make work easier. Key examples of energy types are discussed, including kinetic, potential, and chemical energy, along with common occurrences in batteries, gasoline, and food. It outlines simple machines like pulleys, levers, wheels and axles, and inclined planes, emphasizing their roles in efficient work and how they relate to energy.

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Work & Energy Review

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  1. Work & Energy Review Chapter 6

  2. A speedometer measures? SPEED

  3. The tendency of a moving object to stay in motion is called? INERTIA

  4. A machine is? Anything that makes work easier.

  5. An example of kinetic energy. A ball rolling

  6. Energy that results from a chemical change? Chemical energy

  7. 3 things that chemical energy is found in? Batteries Gasoline Food

  8. Work is…? The result of a force moving an object.

  9. Stored energy is called? Potential energy

  10. A force that pulls two objects together? Gravity

  11. A machine with many moving parts that has low efficiency? Complex machine

  12. Anything that does work uses? Energy

  13. When a moving object rubs against something, its motion slows down because of the force? Friction

  14. An axe is an example of? Compound machine

  15. What is a simple machine? A machine that has only one or two moving parts.

  16. High efficiency means a lot of work is done for the amount of _______ _________ Energy Used

  17. Name the simple machines:pulley, screw, inclined plane, lever, or wheel and axle Inclined plane

  18. Name the simple machines:pulley, screw, inclined plane, lever, or wheel and axle Wheel & Axle

  19. Name the simple machines:pulley, screw, inclined plane, lever, or wheel and axle Lever

  20. Name the simple machines:pulley, screw, inclined plane, lever, or wheel and axle Pulley

  21. Name the simple machines:pulley, screw, inclined plane, lever, or wheel and axle Wedge

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