Question 1

Which type of material allows electric charges to flow freely?

Accepted Answer

Conductor

Answer

Insulator

Answer

Dielectric

Answer

Semiconductor

Question 2

Which subatomic particle carries a negative charge?

Accepted Answer

Electron

Answer

Proton

Answer

Photon

Answer

Neutron

Question 3

What happens when two objects with the same electrical charge come near each other?

Accepted Answer

They repel each other

Answer

Their charges cancel out

Answer

Nothing happens

Answer

They attract each other

Question 4

Which of the following is NOT a way by which objects can become electrically charged?

Accepted Answer

grounding

Answer

induction

Answer

conduction

Answer

friction

Question 5

Which statement accurately describes an object that is positively charged?

Accepted Answer

It has lost some of its electrons.

Answer

It has an excess of protons.

Answer

It has an equal number of protons and electrons.

Answer

It has an excess of electrons.

Question 6

Which of the following is a good conductor of electricity?

Accepted Answer

Copper

Answer

Glass

Answer

Rubber

Answer

Wood

Question 7

Which of the following is an example of static electricity?

Accepted Answer

Rubbing a balloon on hair and making it stick to a wall

Answer

Operating an electric motor

Answer

Lighting up a bulb using a battery

Answer

Charging a cellphone with a power adapter

Question 8

Which of the following scenarios best represents charging by conduction?

Accepted Answer

Charging a neutral metal sphere by touching it with a charged rod.

Answer

A charged balloon sticking to a wall.

Answer

A negatively charged object attracting a neutral object.

Answer

Lightning occurring during a thunderstorm.

Question 9

Which of the following statements about charging by friction is true?

Accepted Answer

It involves the transfer of electrons between two objects.

Answer

It can only charge objects with a positive charge.

Answer

It requires the presence of an electric current.

Answer

It only occurs between two metals.

Question 10

This picture shows the process of charging by _____________.

Accepted Answer

induction

Answer

insulation

Answer

friction

Answer

conduction

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