What is Electricity Quiz

Which subatomic particle is responsible for electricity?

• electron

• proton

The movement (or flow) of electrons forms a

• Electrical resistance

• Electric current

Atoms are neutral if

• The number of protons = the number of neutrons

• The number of protons = the number of electrons

The charge of an atom can change

• when its number of neutrons changes

• when it gains or loses electrons

• when it gains or loses protons

An excess (greater amount) of electrons will result in a

• positive ion

• negative ion

Materials, such as metals, with weakly bound valence electrons are known as

• conductors

• insulators

Non-metals, such as carbon and oxygen, are known as

• conductors

• insulators

Why is copper a good conductor?

• Because its electrons easily jump from one energy level to another

• Because it has only one valence electron that it does not hold onto very strongly

Why is copper a good conductor?

• Because its electrons easily jump from one energy level to another

• Because it has only one valence electron that it does not hold onto very tightly

Give an example of a good conductor?