Simple machines 1

What is a simple machine?

• A device or a tool that makes work easier.

• A push or a pull

• Can make an object, move, stop, change direction or break apart.

• A computer

This picture shows an example of what type simple machine?

• pulley

• wedge

• lever

• wheel and axle

• screw

A seesaw is an example of what type of simple machine?

• wheel and axle

• lever

• wedge

• pulley

• screw

What type of simple machine makes chopping wood easier?

• inclined plane

• screw

• wedge

• lever

• wheel and axle

What type of simple machine is shown here?

• Pulley
• Wheel and Axle
• Lever
• Wedge
• Screw

A door stop is an example of a

• Screw
• Wedge
• Lever
• Inclined Plane
• Wheel and axle

The ______________ is a flat surface that is raised so one end is higher than the other.

• inclined plane

• lever

• pulley

• wedge

• Screw

The ____________ consists of a rod attached to a wheel, and makes it easier to move or turn things. A door knob is an example of this simple machine.

• lever

• pulley

• wheel and axle

• wedge

• Screw

This simple machine has a stiff bar that moves about a fixed point, called a fulcrum.

• screw

• wheel and axle

• wedge

• lever

The ______________ is an inclined plane wrapped around a cylinder or cone. It is mostly used to hold objects together.

• pulley

• lever

• wheel and axle
  

• screw

• inclined plane