G3 Electricity (Savvas Chap 2 Lesson 1)

What will happen when a particle with a negative electric charge is placed near a particle with a positive electric charge?

• The particle with the positive charge will attract the particle with the negative charge.

• The particle with the positive charge will repel the particle with the negative charge.

• The positive charge on the particle will change into a negative charge.

• No change will happen.

A plastic rod with a negative charge is close to a metal plate. Which statement is true?

• The metal plate is an insulator.

• The metal plate is a conductor.

• The metal plate has gained negative charges.

• The metal plate has gained positive charges.

What happens during a static discharge?

• The electric force between objects gets stronger.

• Neutral objects gain a positive electric charge.

• Particles with an electric charge move between objects that are not touching.

• The number of charged particles in an object suddenly decreases.

In a conductor_____

• electric charges cannot move easily.

• electric charges can move easily.

• the charge is neutral.

• the charge is negative.

In an insulator ______.

• electric charges cannot move easily.

• electric charges can move easily.

• the charge is neutral.

• the charge is negative.

Which of these materials is a good conductor of electricity?

• Rubber

• Metal

• Newspaper

• Glass

Opposite charges _______________.

• attract

• repel

• nothing changes

Like charges _______________.

• attract

• repel

• nothing changes

If the two balloons repel each other, which of the following is true?

• The balloons must have opposite charges.

• The balloons must have positive charges.

• The balloons must have negative charges.

• Not enough information is given to answer the question.