Chapter 9 - Simple Machines Flashcards

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1
Q

First class lever

A

lever with the fulcrum between the effort and the load

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2
Q

Second class lever

A

lever with the load between the effort and the fulcrum

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3
Q

Third class lever

A

lever with the effort between the load and the fulcrum

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4
Q

Fulcrum

A

point around which a lever turns

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5
Q

Effort

A

force used to cause movement

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6
Q

Load

A

force, such as the weight of an object, resisting motion against which a lever works

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7
Q

Block and Tackle

A

system of pulleys in which there are both fixed and moving pulleys

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8
Q

Pulley

A

A special type of wheel and axle that makes it easier for you to lift a load

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9
Q

Gears

A

toothed wheel that can turn other toothed wheels

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10
Q

Driving Gear

A

gear that causes another to move

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11
Q

Driven Gear

A

gear that is moved by another gear

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