Electricity Basics

What does this image mean?

• a buzzer

• a bulb

• two cells

• a cell

Look at this circuit - which bulbs will be lit?

• no Bulbs

• only Bulb B

• only Bulb A

• both Bulbs

Look at this circuit - what is wrong with it?

• too many motors

• there is a gap in the circuit

• there is nothing wrong

• too many cells

What does this image mean?

• a bulb

• a switch (on)

• a buzzer

• a cell

Why is there a plastic coating around a metal wire?

• so it looks nice

• to insulate electricity

• to keep the wire warm

• to conduct electricity

If you add another battery to a circuit with one bulb - what will happen to the bulb?

• no change

• become brighter

• it will turn off

• become dimmer

Look at this circuit - which bulbs will be lit?

• only Bulb A

• only Bulb B

• no Bulbs

• both Bulbs

What is wrong with this circuit?

• not enough cells

• it's dangerous

What does this sign mean?

• lightning nearby

• electricity is dangerous

• requires battery power

• requires mains power

Why is electrical wire made from metal?

• to insulate electricity

• so they can bend easily

• to conduct electricity

• because metal is cheap