Simple Machines

A machine is something that helps us do work with ___________.

• more effort

• less effort

• no effort

Tags

NGSS.MS-PS2-1

This machine has one or more slanting edges. We use it to cut things or push things apart.

• Inclined plane

• Wedge

• Pulley

• Screw

This machine has a flat slanting surface. We use it to push objects to a higher place more easily.

• Wedge

• Wheel and axle

• Inclined plane

• Pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This machine has a rope and a wheel and axle. We use it to lift heavy objects.

• Wheel and axle

• Screw

• Pulley

• Lever

We use this simple machine to move objects on the ground from one place to another more easily.

• Lever

• Wheel and axle

• Wedge

• Screw

This machine is an inclined plane that goes around a cylinder and is used to hold things together or to lift things.

• Screw

• Lever

• Pulley

• Wedge

This machine has a rigid bar which is placed on a support called a fulcrum.

• Load

• Effort

• Lever

• Pulley

The fulcrum is between the effort and the load.

• Class 1 lever

• Class 2 lever

• Class 3 lever

The load is between the effort and the fulcrum.

• Class 1 lever

• Class 2 lever

• Class 3 lever

The fulcrum is at one end. The effort is between the fulcrum and the load.

• Class 1 lever

• Class 2 lever

• Class 3 lever