To compare: Also contrast first, second, and third class of levers. Concept introduction: A lever is defined as an elongated rigid object that rotates around a fixed point called fulcrum. They have the ability to change the speed and distance of movement which is produced by force, the direction of applied force or the force of strength.

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Chapter 9, Problem 15DYB

Summary Introduction

To compare:

Also contrast first, second, and third class of levers.

Concept introduction:

A lever is defined as an elongated rigid object that rotates around a fixed point called fulcrum. They have the ability to change the speed and distance of movement which is produced by force, the direction of applied force or the force of strength.

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