Simple Machines

Question 1

The number of times a machine multiplies the input

force;output force divided by input force

Answer 1

Mechanical advantage

Question 2

The percentage of the input work done on a machine that the machine can return in output work.A machine’s output work divided by its input work and multiplied by 100

Answer 2

Efficiency

Question 3

One of the basic machines on which all other mechanical machines are based. The six simple machines are the lever,inclined plane,wheel and axel,pulley,wedge,and screw

Answer 3

Simple machine

Question 4

A solid bar that rotates,or turns,around a fixed point ; one of the six simple machines

Answer 4

Lever

Question 5

A fixed point around which a lever rotates

Answer 5

Fulcrum

Question 6

A simple machine that is a wheel attached to a shaft,or axle

Answer 6

Wheel and axle

Question 7

A wheel with a grooved rim that turns on an axle;one of the six simple machines

Answer 7

Pulley

Question 8

A simple machine that is a sloping surface,such as a ramp

Answer 8

Inclined plane

Question 9

Any device that makes doing work easier

Answer 9

Machine