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 nachine can return in output work.

Answer 2

Efficiency

Question 3

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

Answer 3

Simple machine

Question 4

A solid bar that rotates, around a fixed point

Answer 4

Lever

Question 5

A fixed point around which alever 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 groved 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

incline 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

Macine