Chapter 4 Test

Question 1

The weight of an object being moved

Answer 1

load

Question 2

An object that makes work easier

Answer 2

machine

Question 3

The force that pulls objects toward the earth

Answer 3

gravity

Question 4

The force applied to cause a simple machine to do work

Answer 4

effort

Question 5

The force that resists the movement of objects against each other

Answer 5

friction

Question 6

A change in position

Answer 6

motion

Question 7

A greater mass requires ________ force to move it

Answer 7

a greater

Question 8

A force moving an object over a distance

Answer 8

work

Question 9

The amount of work you do depends on how much _________ you use to move an object

Answer 9

energy

Question 10

A black and tackle allows you to use _________ force when lifting an object because the rope moves a greater distance.

Answer 10

less

Question 11

A wedge is made of one or more of these used to force materials apart

Answer 11

inclined planes

Question 12

A pulley is a __________ with a groove that can hold a rope.

Answer 12

wheel

Question 13

A lever is _________ that turns on a point

Answer 13

a bar

Question 14

The inclined plane on a screw

Answer 14

the thread

Question 15

A _________ is a push or a pull

Answer 15

force

Question 16

A screw is a _________ wound around an axle

Answer 16

inclined plane

Question 17

The point on which a lever turns

Answer 17

fulcrum

Question 18

An inclined plane is a ________, sloped surface

Answer 18

smooth

Question 19

The amount of effort needed on a lever is determined by _____________ between the effort and the fulcrum

Answer 19

distance