Motion And Forces- Simple Machines

Question 1

A combination of kinetic energy and potential energy a object has

Answer 1

Mechanical Energy

Question 2

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

Answer 2

Efficieny

Question 3

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

Answer 3

Simple Machine

Question 4

A fixed pint around which a lever rotates

Answer 4

Fulcrum

Question 5

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

Answer 5

Wheel and Axle

Question 6

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

Answer 6

Pulley

Question 7

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

Answer 7

Inclined Plane

Question 8

A simple machine that has a thick end and a thin end. A wedge is used to cut, split, or piece objects, or to hold objects together

Answer 8

Wedge

Question 9

A simple machine that is an inclined plane wrapped around a cylinder. A screw can be used to raiser and lower weights as well as to fasten objects

Answer 9

Screw

Question 10

Any device that’s makes doing work easier

Answer 10

Machine