natural unit6

A complex machine contains several simple machines

• True

• False

What are the parts of a pulley?

• groove, wheel and rope

• wheel and rope

• load and effort

• load, wheel and rope

Example of a class 1 lever

• scissors

• tongs

• nutcracker

• stapler

Parts of a lever

• rigid bar and fulcrum

• load and effort

• load, effort and fulcrum

• rigid bar

Inventions by Archimedes

• Archimedes' claw

• Archimedes' scissors

• Archiimedes' screw

• Archimedes' water

A machine that has few or no moving parts

• Simple machine

• Complex machine

Newton discovered the laws of motion

• True

• False

What type of lever is this?

• Class 1

• Class2

• Class 3

A load is...

• the weight of an object

• the amount of force required to move an object

• a type of lever

• a part of a pulley

Archimedes invented the compass

• True

• False