Static electricity

The smallest unit of an element is

• An electron
• A proton
• A neutron
• An atom

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

• positive
• negative
• neutral or no charge
• opposite

True or False

Like charges repel

• True

• False

True or False
A positively charged object has lost electrons

• True
• False

Which one of these objects is a bad conductor

• Copper wire

• Glass

• Aluminum

• Gold

Ms Pippin 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.

The difference between attraction and repulsion is that to attract is to pull something closer and repel is to push something away.

• True

• False

Electrical charge built up on the surface of an object is called _________________.

• static electricity
• current electricity
• lightning
• electrons

Bending water with a charged balloon is an example of what type of charging (charging an object without touching)

• friction

• induction

• conduction

During a lab a balloon was rubbed with a woolly fabric. This is an example of which type of charging?

• conduction

• friction

• induction