Electricity

label this simple circuit:

Power Source

Device

Wire

Switch

This balloon is sticking to the wall because...

• The wall is sticky

• Someone is holding it

• The negatives are attracted to the positives

• none of the above

Lightning is classified as what:

• Harnessed Electricity

• Causing the Dust Bowl

• Static Electricity

What is the primary source of electricity in most countries?

• Coal

• Wind

• Solar

• Nuclear

Which of the following is a renewable source of electricity?

• Natural Gas

• Coal

• Wind

• Oil

What is the unit of electric current?

• Volt

• Ampere

• Watt

• Ohm

Which invention is Thomas Edison famous for that uses electricity?

• Telephone

• Light Bulb

• Radio

• Television

What is the main purpose of a transformer in an electrical circuit?

• To increase resistance

• To convert AC to DC

• To change voltage levels

• To store energy

Which of the following is a disadvantage of using coal for electricity?

• High cost

• Pollution

• Renewability

• Abundance

What is the role of a circuit breaker in an electrical system?

• To increase voltage

• To prevent overload

• To store energy

• To convert energy