Simple Machines

Question 1

The number of times a machine multiplies the 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?

Answer 2

Efficiency

Question 3

One of the basic machines on which all other mechanical machines are based?

Answer 3

Simple Machines

Question 4

A solid bar that rotates, or turns, around a fixed point (fulcrum)?

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 ground rim that turns on an axle?

Answer 7

Pulley

Question 8

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

Answer 8

Inclined Plane

Question 9

A simple machine that has a thick end and a thin end?

Answer 9

Wedge

Question 10

A simple machine that is an inclined plane wrapped around a cylinder?

Answer 10

Screw

Question 11

Any device that makes doing work easier?

Answer 11

Machine