Electricity

What needs to be done to this circuit so that the lamp lights up?

• Close the switch

• Add another lamp

• Add a cell and close the switch

What component does this circuit symbol represent?

• Cell

• Voltmeter

• Resistor

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

• Only switch 1

• Only switch 2

• Switches 1 and 2

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

• It will get brighter

• It will go out

• It will stay the same brightness

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

• It will stay lit

• It will go out

• It will get dimmer

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 ammeter will have the biggest reading?

• Ammeter 1

• Ammeter 2

• They will read the same

Which statement about electric current is correct?

• It always flows clockwise

• It gets used up as it goes around the circuit

• It does not get used up as it goes around the circuit

What is the definition of current?

• The flow of charge

• A measure of the difference in energy

• How difficult it is for electrons to flow

Which term is used instead of voltage?

• Resistance

• Potential difference

• Current