Electrical Energy and Circuits

A device for opening or closing the flow in a circuit is _______.

• an insulator
• a battery charger
• a switch

Electrical energy is changed to ______________ in light bulbs.

• light energy
• heat energy
• sound energy
• energy of motion

Electrical energy is changed to __________ in stoves, toasters, and ovens.

• light energy
• heat energy
• sound energy
• energy of motion

Electrical energy is changed to __________ in radios and televisions.

• light energy
• heat energy
• sound energy
• energy of motion

The path that the electricity flows from the battery to the light bulb and back to the battery is called the _____.

• circuit
• components
• wires
• switch

The individual items in the circuit are called _____.

• circuits
• components
• bulbs
• battery

In a _____ circuit, the electricity flows.

• open
• closed

In an _____ circuit, the electricity can not flow.

• open
• closed

Which picture shows a circuit that will light the bulb when the switch is closed?

• A
• B
• C
• D

What is missing in this circuit to complete the flow of electricity?

• battery
• wire
• light bulb
• nothing