Simple Machines

What is a simple machine?

• A machine that uses electricity

• A machine that uses complex mechanisms

• A machine that helps do work easier

• A machine that can only be operated by humans

Which simple machine is a lever?

• Scissors

• Screw

• Inclined plane

• Pulley

What is the fulcrum in a lever?

• The load

• The effort arm

• The heavy object

• The point where the lever stands or moves around

What is the purpose of a pulley?

• To cut or lift objects

• To join things together

• To raise heavy objects

• To move heavy objects horizontally

Tags

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What is the function of a screw?

• To join things together

• To raise weights of water buckets

• To draw water from a well

• To close bottles tightly

What is an inclined plane used for?

• To cut or lift objects

• To join things together

• To raise heavy objects

• To move heavy objects horizontally

What are wedges used for?

• To easily go inside any surface and stay intact

• To cut, lift or tighten objects

• To draw water from a well

• To close bottles tightly

What is the wheel and axle used for?

• To cut or lift objects

• To join things together

• To raise heavy objects

• To rotate objects with less effort

Tags

NGSS.MS-PS2-1

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