GW C12 Test

Front

The six simple machines are ____.

Back

lever, pulley, wheel and axle, inclined plane, wedge, and screw

Front

In a Class 1 lever ____.

Back

the fulcrum is between the effort and the resistance

Front

The turning force acting on a lever is called a ____.

Back

moment

Front

A linkage is a(n) ____.

Back

system of levers used to transmit motion

Front

A pulley is a special kind of ____.

Back

wheel and axle

Front

In a single, movable pulley system, ____.

Back

the effort required is half the resistance

Front

The disadvantage of a single, movable pulley is that the .

Back

operator must pull upward

Front

A gear with one tooth shaped like a screw thread is called a gear.

Back

worm

Front

The period when a follower on a pear-shaped cam remains motionless is called .

Back

dwell

Front

The formula to calculate power is .

Back

work ÷ time