Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 925 · 40 questions

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

1. 1.True or false: the ammeter is joined in series. (a) False (b) True
2. 2.True or false: resistance is measured in volts (V). (a) False (b) True
3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
4. 4.True or false: power is measured in watts (W). (a) False (b) True
5. 5.True or false: current is measured in ohms (Ω). (a) False (b) True
6. 6.True or false: resistance is measured in watts (W). (a) False (b) True
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
8. 8.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) a narrow pipe (d) the water pressure
9. 9.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
10. 10.📏 How many ohms (Ω) is 9.5 kΩ?
11. 11.True or false: power is measured in volts (V). (a) True (b) False
12. 12.True or false: the voltmeter is joined in series. (a) False (b) True
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
14. 14.True or false: voltage is measured in amperes (A). (a) True (b) False
15. 15.True or false: the ammeter measures voltage. (a) True (b) False
16. 16.📏 How many kilo-ohms (kΩ) is 2000 Ω? =
17. 17.True or false: the push of a cell is measured in volts (V). (a) False (b) True
18. 18.Which of these is measured in volts (V)? (a) the flow of charge (b) resistance (c) current (d) the push of a cell
19. 19.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
20. 20.True or false: the voltmeter measures voltage. (a) True (b) False
21. 21.True or false: resistance is measured in amperes (A). (a) True (b) False
22. 22.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the water tank lid (d) the pipe colour
23. 23.True or false: the voltmeter is joined across a part. (a) True (b) False
24. 24.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
25. 25.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) power (d) how much a part resists
26. 26.📏 How many ohms (Ω) is 0.2 kΩ?
27. 27.📏 How many kilowatts (kW) is 1950 W? =
28. 28.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
29. 29.True or false: voltage is measured in watts (W). (a) False (b) True
30. 30.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
31. 31.True or false: current is measured in amperes (A). (a) True (b) False
32. 32.True or false: the voltmeter measures current. (a) False (b) True
33. 33.📏 How many ohms (Ω) is 7.6 kΩ?
34. 34.True or false: the ammeter measures current. (a) True (b) False
35. 35.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) energy used each second (d) current
36. 36.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) resistance (d) the flow of charge
37. 37.📏 How many ohms (Ω) is 9.3 kΩ?
38. 38.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
39. 39.📏 How many ohms (Ω) is 5.3 kΩ?
40. 40.Which of these is measured in watts (W)? (a) voltage (b) the flow of charge (c) resistance (d) power

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