Electricity and Circuits Quiz

What is an electric current?

• The brightness of a light bulb

• The movement of atoms

• The flow of electric charge

• The weight of electrons

Which particle is responsible for carrying electric current in a circuit?

• Proton

• Neutron

• Electron

• Atom

What is the unit of electric current?

• Volt

• Ohm

• Watt

• Ampere (Amp)

If a circuit has a higher current, what does that mean?

• More charge flows per second

• Less energy is used

• The wire is longer

• The circuit is open

What tool is used to measure current?

• Voltmeter

• Ammeter

• Thermometer

• Ohmmeter

What is resistance?

• How fast current flows

• The opposition to current flow

• The speed of electrons

• A type of battery

What unit is used to measure resistance?

• Amp

• Watt

• Volt

• Ohm

Which material would have the least resistance?

• Plastic

• Glass

• Copper

• Rubber

Increasing resistance in a circuit will:

• Make current stronger

• Stop charge from moving at all

• Decrease the current

• Increase voltage

A longer wire usually has:

• Less resistance

• More resistance

• No resistance

• The same resistance