Simple Machines Quiz

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 _____.

• lever

• wedge

• screw

An inclined plane wound around an axle is called a _____.

• wedge

• wheel and axle

• screw

A flat, sloped surface is called _____.

• an inclined plane

• a wedge

• a lever

A wheel with a rod running through it is called a _____.

• pulley

• wheel and axle

• screw

An inclined plane lets you use less force to move an object because the load moves a greater _____.

A fixed pulley changes the _____ of the force needed to lift the load.

A block and tackle allows you to use _____ force when lifting an object because the rope moves a _____ distance.

• less

• greater

Christians glorify God when they invent machines that help _____.