Electricity Explained

What are the three main particles that make up an atom?

• Electrons, protons, and neutrons

• Electrons, ions, and neutrons

•    Protons, neutrons, and photons

What happens to electrons in an atom when enough electrostatic force is applied?

• They become protons.

• They escape the outer energy level and become free electrons.

• They combine to form neutrons.

What is the term for the flow of charged particles, such as electrons, through a conductor?

• Static electricity

•    Electric current

•    Electric potential

Organize these options into the right categories

Groups:

(a) Conductors

,

(b) Insulators

• copper

• silver

• gold

• plastic

• glass

• air

What is the difference between current electricity and static electricity?

• Current electricity is static, while static electricity is dynamic.

•    Current electricity involves moving charges, while static electricity involves charges at rest.

•   Current electricity requires a battery, while static electricity does not.

How does lightning relate to static electricity?

•    It is caused by moving charges in a circuit.

•     It is a discharge of built-up static electricity.

• It is a form of current electricity.

What is electric potential energy similar to in a mechanical context?

• A ball at the top of a hill.

•   A ball rolling down a slope.

•   A ball bouncing on the ground.

What is voltage a measure of?

• The amount of current flowing.

•    The difference in potential energy of charges.

•    The resistance of a conductor.

What role does a battery play in an electric circuit?

• It provides insulation.

• It acts as a source of chemical energy that converts to electrical energy.

• It stores static electricity.

What is the effect of the electric field on charges?

•     It attracts and repels other charges

•     It only attracts positive charges

•     It only repels negative charges