Current KS3

Is this Circuit series or parallel? Why?

• Series - It has 3 light bulbs.

• Series - Because it is one loop. The current only has one way to flow.

• Parallel - The electrical current is divided between the three light bulbs.

• Parallel - Because it is one loop.The current only has one way to flow.

What is the unit of current?

• Volts

• Seconds

• Amps

• Metres

• Ohms

Current is...

• A measure of the difference in energy

• How difficult it is for electrons to flow

• The rate of flow of charge

• The temperature of the wire

What is wrong with this circuit diagram?

• There is only one cell

• The ammeter should be connected in series

• A ammeter should be connected in parallel

Which switch or switches must be closed to make the lamps light?

• Switch 1

• Switch 2

• Neither switch 1 or switch 2

• Both switch 1 and switche 2

If lamp 1 is unscrewed from its holder, what will happen to lamp 2?

• It will go out

• It will get brighter

• It will stay the same brightness

If lamp 1 is unscrewed from its holder, what will happen to lamp 2?

• It will go out

• It will stay lit

• It will get dimmer

Which ammeter will have the biggest reading?

• Ammeter 1

• Ammeter 2

• They will be the same

• open

• wire

• series

• parallel

What do we use to measure current in a circuit?

• A resistor

• An ammeter

• A voltmeter

• A diode