G3-Science Revision 1

When matter has an overall positive charge or a negative charge, we say that it has an

• electric charge

• positive charge

• negative charge

the negative charges in the blue circle will .......the positive charges in the red circle

• repel

• attract

• nothing happens

The object in the picture is............

• Negatively charged

• positively charged

• Neutral

when the number of the negative charges and positive charges are the same ,the object is ..........

• Negatively charged

• positively charged

• Neutral

What will happen between the charges in the picture?

• Repulsion

• Attraction

• Nothing happens

in a............electrical charges can move easily

• insulator

• conductor

• nothing

in an...........electrical charges cannot move easily

• conductor

• insulator

• nothing

The matters in the picture are...........

• insulators

• conductors

• Neutral

• insulators

• conductors

• both

Electric force is a ............force

• Contact

• non contact force

• both