Science Revision G1

The police siren has a ............

• Soft sound

• Loud sound

choose all the simple machines :

• 
• 
• 
• 

What kind of energy is used in :

(a)  

A pull moves the objects away from you

• 
• 

A force pulls things toward Earth is called ....................

• friction

• push

• attract

• gravity

The poles are alike , so the magnets will :

• attract

• repel

Light is a form of energy lets you see

• 
• 

Things that block light make ............

• position

• friction

• shadows

The light .............through glass of water

• passes

• does't pass

Name a source of heat :

(a)