Electricity

A particle that carries a negative electric charge is called a(n) ______.

• neutron
• atom
• proton
• electron

The potential difference that causes charges to move in a circuit is ___.

• voltage
• resistance
• current
• electric discharge

An example of a voltage source is a _____.

• voltmeter
• battery
• resistance
• switch

A circuit that is connected to Earth is said to be _____.

• series
• parallel
• grounded
• discharged

Your hair might be attracted to your comb as your hair and the combe become oppositely charged.

• true
• false

A neutral object becomes negatively charged when it loses electrons.

• true
• false

Electrical resistance is low in a good conductor.

• true
• false

How does a switch work?

• It opens and closes the circuit.

• It makes the light bulb brighter.

• It provides the energy for the circuit.

Current electricity flows through _______

• plastic

• rubber

• wires

• string

Electric charges that are alike _______ each other.

• repel

• attract

• divide

• neutralize