Compound Machines

Marawan is doing a report on compound machines. Which is the best way to describe a compound machine?

• a machine that is like a nail with threads wrapped around it

• a machine that makes moving and lifting things easier

• a machine made up of two or more simple machines

• a machine made of two inclined planes back to back

A hand-operated can opener is made up of two levers, a wedge, and a wheel-and-axle. Which best describes the can opener?

• a simple machine

• a compound machine

• a screw

• a force

Tags

NGSS.MS-PS2-1

Which simple machines make up these garden shears?

• lever and screw

• wedge and pulley

• wedge and inclined plane

• lever and wedge

Tags

NGSS.MS-PS2-1

Which is an example of a compound machine?

• can opener

• screwdriver

• knife

• flagpole

A bicycle is a compound machine. What are two simple machines found in a bicycle?

• wheel-and-axle and inclined plane

• inclined plane and pulley

• lever and wheel-and-axle

• wedge and screw

Tags

NGSS.MS-PS2-2

This girl is using a compound machine.

Which two simple machines make up this compound machine?

• inclined plane and pulley

• fulcrum and lever

• wedge and screw

• . lever and wedge

Select all that belong to compound machine.

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