EDS Introducing electrical circuits

An electric current is a flow of

• heat

• power

• electrons

• metal

In a conductor

• electrical charge cannot flow

• electrical charge flows a small amount

• electrical charge flows easily

In an insulator

• electrical charge cannot flow

• electrical charge flows a bit

• electrical charge flows easily

Electrical components joined in a single loop make a

• parallel circuit

• series circuit

• broken circuit

• looped circuit

A battery has a store of

• chemical energy

• electrical energy

• thermal energy

When a battery in a circuit is connected to the rest of the components

• electrical energy is converted to chemical energy

• electrical energy is converted to thermal energy

• chemical energy is converted to electrical energy

If you have a series circuit with two bulbs and one battery you can make it brighter by

• adding another battery

• adding another bulb

• adding another switch

Which of these is a good electrical insulator?

• copper

• silver

• china