Static Electricity

Explain how rubbing an acetate rod with a cloth causes the rod and cloth to become

charged.

After charging them, the student moves the acetate rod and the cloth closer

together.

Which statement is correct?

• There is no force between the acetate rod and the cloth.

• There is a force of attraction between the acetate rod and the cloth.

• There is a force of repulsion between the acetate rod and the cloth.

Give a reason for your answer.

The longer the Van de Graaff generator is switched on, the more charge is stored on

the metal dome.

The amount of charge on the metal dome is increased, which causes the potential

difference between the metal dome and the earthed sphere to

When Emily rubs a balloon on her hair it becomes charged with static electricity due

to friction.

Explain fully how the balloon becomes positively charged.