Simple machines

Work is...

• a type of machine

• energy from the sun

• a force that pulls you towards the earth

• a force that moves an object

Describe a simple machine.

which is a characteristic of a simple machine?

• they run on electricity

• they take a long time to make

• they are not very large

• they have few or no moving parts

Why are simple machines important?

Which is NOT a type of simple machine?

• Wedge

• Spring

• Lever

• Wheel and Axle

What is the fixed point upon which a lever rotates?

• fulcrum

• falcon

• furmen

• fulton

Which are examples of people using simple machines to do work?

• a mother pushes a stroller up a ramp into a building

• a painter is using a screwdriver to pry open a paint can

• a boy runs across a football field

• a farmer is using a wheel barrel to bring his newly harvested crops home

• a banker counts money

What is a compound machine?

What two types of simple machines are scissors made up of?

What three types of simple machines are bikes made up of?