PS - Unit 1

Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.
• The balloons will attract each other.
• The balloons will become positively (+) charged.
• The balloons will pop.

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative

Electric charges that are alike _______ each other.

• Attract
• Repel

Electric charges that are different _______ each other.

• Attract
• Repel

If an object has the same number of positive and negative charges, its electrical charge is...

• positive
• negative
• neutral or no charge
• opposite

The push or pull between charged objects is an

• electric force
• electric discharge
• electric field

The Electric Force is strongest when charges are...

• close together
• far apart
• the electric force is constant everywhere

What are the two types of charges that objects may possess?

• + and +
• + and -
• + and neutral 
• - and neutral 

What is the effect of two negatively charged objects coming near each other.

• The objects repel each other.

• The objects attract each other.

What is the effect of one negatively charged object and one positively charged object coming close to each other.

• The objects repel each other.

• The objects attract each other.