Electricity

Question 1

1. Simple device that generates electricity.

Answer 1

CELL

Question 2

2. The metal or graphite rod in an electric cell.

Answer 2

ELECTRODE

Question 3

3. Instrument for measuring potential difference or voltage.

Answer 3

Voltmeter

Question 4

4. Substance that does not allow electrons to pass through.

Answer 4

INSULATOR

Question 5

5. A screwdriver placed across two wires in a circuit creates a _____ circuit.

Answer 5

SHORT

Question 6

6. Instrument to measure current.

Answer 6

AMMETER

Question 7

7. Type of electricity produced by rubbing plastic on wool.

Answer 7

STATIC

Question 8

8. Substance that allows electrons to pass through easily.

Answer 8

CONDUCTOR

Question 9

9. DC stands for_______________.

Answer 9

DIRECT CURRENT

Question 10

10. Device that increases or decreases voltage.

Answer 10

TRANSFORMER

Question 11

11. Household circuits are of this type.

Answer 11

PARALLEL

Question 12

12. Voltage divided by current is the _______.

Answer 12

RESISTANCE

Question 13

13. Wire that discharges excess electricity to the earth.

Answer 13

EARTH

Question 14

14. Protective device which “blows” if there is excess electricity in a house circuit.

Answer 14

FUSE

Question 15

15. Unit of potential difference or voltage.

Answer 15

VOLT

Question 16

16. Unit of resistance.

Answer 16

OHM or OHMS

Question 17

17. Current electricity is a flow of _______ along a wire.

Answer 17

ELECTRONS

Question 18

18. A series of cells.

Answer 18

BATTERY

Question 19

19. Circuit where components are placed one after the another.

Answer 19

SERIES

Question 20

21. Unit of current.

Answer 20

AMPERE

Question 21

22. AC stands for ____________.

Answer 21

CURRENT

Question 22

22. Yellow metal used in electrical wires.

Answer 22

Copper

Question 23

23. Solution in an electric cell.

Answer 23

Electrolyte

Question 24

24. Making of electricity is called ____________.

Answer 24

Electricity Generation

Question 25

25. This is a number of joules per coulomb of charge, it is measured in volts.

Answer 25

Potential Differences or Volts (V)

Question 26

26. The amount of charge per second passing a point in a circuit, it is measured in amps(A).

Answer 26

Current(I)

Question 27

27. A ratio of potential differences across a component to the current flowing through it, it is measured in ohms.

Answer 27

Resistance (symbol)