Simple Machines

A machine that makes work easier and has few to no moving parts is called a _______________.

A machine made up of two or more simple machines is called a ______________.

What type of simple machine is used to raise a flag on a flagpole?

• pulley

• lever

• wedge

• screw

Which of these objects is an example of a screw?

• knife

• light bulb

• nail

• tweezers

Which of these objects is a compound machine?

• bicycle

• slide

• bottle cap

• nail

A stiff bar that rests on a fulcrum.

• wedge

• lever

• pulley

• wheel and axle

A flat surface that is higher on one end.

• lever

• pulley

• inclined plane

• wheel and axle

Tags

NGSS.MS-PS2-2

Two inclined planes that form together to make one sharp edge.

• wedge

• screw

• lever

• inclined plane

An inclined plane that winds around a cylinder and it has ridges like a nail.

• pulley

• wheel and axle

• screw

• wedge

A wheel and rod that helps the wheel turn.

• inclined plane

• lever

• screw

• wheel and axle

Tags

NGSS.MS-PS2-1