Simple Machines Lesson 1

In order to work, what do ALL machines need?

• electricity

• energy

• wind

Because they wanted to make work easier and faster, people have made

• cars

• energy

• machines

What does a screwdriver do?

• twist and screw

• grip and pul

What do pliers do?

• twist and screw

• grip and pull

We use tools to help us do things better than we could do with our bodies alone.

• true

• false

We use machines to help us do big jobs slower and more carefully.

• true

• false

What is a simple machine?

• a machine that has one piece

• a machine that makes work easier and faster

• a machine that fixes other machines