Science 4 Exam

Make any job easie. They allow us to move, break, hold or lift things with less effort.

• simple machine

• compound machine

Choose the correct simple machines:

• 
• 
• 

The_________is a bat that pivots around a point.

• Load

• effort

• lever

• fulcrum

Choose the 3 types of levers:

• Tweezers

• nutcracker

• pulley

• plier

__________ have two or more simple machines put together and work through two or more actions.

• simple machines

• compound machines

• machine power

Choose the correct machine power:

• 
• 
• 
• 

Choose two great inventions:

• 
• 
• 

cars, planes, microwave and many electronic machines work with _ _ _ _ _ _ _

• magnets

• great inventions

• compound machine

When they pull it is called_____________

• attraction

• repulsion

When they push it is called_____________

• attraction

• repulsion