SCIENCE 4 - BJU Chapter 5

A bar that turns on a point is called

• a wedge

• an inclined plane

• a lever

A wheel with a groove that can hold a rope is called a

• pulley

• wheel and axle

• screw

One or more inclined planes used to force materials apart is called a ____

• pulley

• Wedge

• screw

An inclined plane wound around an axle is called a

• pulley

• Wedge

• screw

A flat, sloped surface is called

• an inclined plane

• Wedge

• screw

A wheel with a rod running through it is called a

• an inclined plane

• wheel and axle

• screw

The force applied to cause a simple machine to do work is called

• the load

• the effort

• friction

A change in position is called

• the load

• the effort

• motion

The force that pulls objects toward the earth is called

• gravity

• the effort

• friction

The force that resists the movement of objects against each other is called

• gravity

• friction

• motion