Understanding Batteries and Circuits

What do wireless devices need to work?

• A plug

• A screen

• A battery

• A charger

Why do people use batteries?

• To make noise

• To power devices without cords

• To clean their house

• To make the device heavier

Who built the first useful battery?

• Thomas Edison

• Alessandro Volta

• Benjamin Franklin

• Nikola Tesla

What did Alessandro Volta use to make his battery?

• Paper and water

• Wires and rubber

• Acid-soaked paper, copper, and zinc

• Plastic and glass

What made the electricity flow in Volta’s battery?

• The wires

• The sun

• Acid between metals

• A computer

What is a circuit?

• A type of battery

• A path for electricity to flow

• A button on a phone

• A kind of radio

Where does electricity flow from in a circuit?

• From the wall

• From the device

• From the battery to the device and back again

• From the light to the battery

What are the two ends of a battery called?

• Top and bottom

• Black and white

• Positive and negative

• Hot and cold

What happens if a circuit is broken?

• The light gets brighter

• The battery gets stronger

• Electricity stops flowing

• The battery grows

Why are the ends of the battery labeled?

• To show where to put your name

• To show which direction electricity should go

• To tell how heavy it is

• To make the battery look cool