Topic 9 Electricity & circuits

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Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

1 What word describes materials that electricity will pass through?

Back (Answer)

conductors

Front (Question)

2 What word describes materials that electricity cannot pass through?

Back (Answer)

insulators

Front (Question)

3 What components do you need to make a circuit that would make a small torch bulb light up?

Back (Answer)

battery, connecting wires, lamp; switch is optional

Front (Question)

4 What are the two terminals of an electric cell labelled as?

Back (Answer)

plus and minus

Front (Question)

5 In an electric circuit with a battery, which of these materials will conduct: copper, wood, salty water?

Back (Answer)

copper and salty water

Front (Question)

6 Which of these materials are insulators: plastic, metal, air?

Back (Answer)

plastic and air

Front (Question)

7 What component is used to measure current?

Back (Answer)

ammeter

Front (Question)

8 What name is given to the negatively charged subatomic particles that cause an electric current?

Back (Answer)

electrons

Front (Question)

9 Is mains voltage about 15 times, 150 times or 1500 times bigger than the voltage from a battery?

Back (Answer)

about 150 times

#10

Front (Question)

10 If you connect some cells together in series, what is formed?

Back (Answer)

a battery

#11

Front (Question)

11 What is the name of a circuit with one path around it and no branches?

Back (Answer)

a series circuit

#12

Front (Question)

12 What is the name given to a circuit with components in different branches?

Back (Answer)

a parallel circuit

#13

Front (Question)

13 What is the circuit symbol for a lamp?

Back (Answer)

circle with a cross in it

#14

Front (Question)

14 What is the circuit symbol for a cell?

Back (Answer)

two vertical lines, one longer than the other

#15

Front (Question)

15 How can you tell which is the negative terminal of a cell from the circuit symbol?

Back (Answer)

It is the shorter line.

#16

Front (Question)

16 What is the difference between conventional current and the flow of electrons?

Back (Answer)

Electrons flow from the negative terminal of a cell to the positive terminal, conventional current flows the other way.

#17

Front (Question)

17 What unit is current measured in?

Back (Answer)

amps/amperes

#18

Front (Question)

18 What is another term for potential difference?

Back (Answer)

voltage

#19

Front (Question)

19 Which component is used to measure electric current?

Back (Answer)

an ammeter

#20

Front (Question)

20 What are the units for current?

Back (Answer)

amps or amperes

#21

Front (Question)

21 What two conditions are needed to give a current in a circuit?

Back (Answer)

closed circuit and potential difference

#22

Front (Question)

22 Is an ammeter connected in parallel or in series with a component?

Back (Answer)

series

#23

Front (Question)

23 A series circuit has two lamps. When the current through one lamp is 2A, what is the current through the other lamp?

Back (Answer)

#24

Front (Question)

24 A parallel circuit has two lamps in parallel. When the current through each lamp is 2A, what is the current from the battery?

Back (Answer)