Simple Machines

A machine with grooves that winds round and round in a spiral is a

• pulley

• screw

• wedge

• lever

A machine that is round, and they turn to make things go is a

• screw

• wheel and axle

• lever

• pulley

Tags

NGSS.MS-PS2-1

A bar that moves on or around a fixed point is a

• wheel and axle

• inclined plane

• lever

• pulley

A special kind of wheel that changes the direction of the force. When you pull down the object goes up.

• wedge

• lever

• inclined plane

• pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A machine used for slicing or cutting is a

• wedge

• inclined plane

• screw

• lever

A surface, often flat, set at an angle to another surface is a(n)

• pulley

• inclined plane

• wedge

• lever

Work is done when force

• pushes on something

• moves an object

• pulls on something

Simple machines make work

• harder

• easier

A tool with few or no moving parts that makes work easier by changing the size, direction, speed or distance of a force.

• simple machine

• compound machine

A machine made of two or more simple machines working together.

• simple machine

• compound machine