Battery and Main

An air conditioner uses _______.

• Dry cell

• Mains electricity

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A laptop uses _________.

• Dry cell

• Mains electricity

• Both

How many elements need batteries to work?

• 3. calculator, torch and celphone

• 2. watch and calculator

• 4. Watch, calculator, torch and celphone

Which kind of electricity is safer: mains or cell electricity?

• mains

• cell

A digital camera uses _________.

• Dry cell

• Mains electricity

The MAIN purpose of a battery is to

• Make things hot

• Store energy

• Move energy from one place to another

• Provide motion

The plus sign on a battery shows which terminal?

• Positive

• Negative

The minus sign on a battery shows which terminal?

• Positive

• Negative

Which type of electricity is safer: mains or battery?

• Mains

• Battery

• Both are equally safe

• Neither is safe

What is the primary function of a battery in a circuit?

• To increase voltage

• To store electrical energy

• To convert AC to DC

• To provide resistance