Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 602 · 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 across a part. (a) False (b) True
2. 2.True or false: the ammeter is joined in series. (a) False (b) True
3. 3.📏 How many kilowatts (kW) is 3350 W? =
4. 4.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) a bigger tank
5. 5.True or false: how much a part resists is measured in volts (V). (a) False (b) True
6. 6.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) the flow of charge (d) the push of a cell
7. 7.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
8. 8.📏 How many watts (W) is 3.1 kW?
9. 9.📏 How many watts (W) is 1 kW?
10. 10.True or false: the ammeter measures voltage. (a) True (b) False
11. 11.True or false: the flow of charge is measured in volts (V). (a) True (b) False
12. 12.True or false: the push of a cell is measured in volts (V). (a) False (b) True
13. 13.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
14. 14.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
15. 15.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
17. 17.True or false: the voltmeter is joined across a part. (a) False (b) True
18. 18.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
19. 19.True or false: power is measured in amperes (A). (a) False (b) True
20. 20.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
21. 21.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
22. 22.📏 How many ohms (Ω) is 2.9 kΩ?
23. 23.📏 How many milliamperes (mA) is 1.1 A?
24. 24.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) voltage (d) resistance
25. 25.📏 How many kilowatts (kW) is 900 W? =
26. 26.True or false: energy used each second is measured in watts (W). (a) True (b) False
27. 27.True or false: the push of a cell is measured in watts (W). (a) False (b) True
28. 28.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
29. 29.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
30. 30.True or false: voltage is measured in volts (V). (a) False (b) True
31. 31.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
32. 32.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1000 (d) 1024
34. 34.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) power (d) how much a part resists
35. 35.📏 How many amperes (A) is 920 mA? =
36. 36.📏 How many kilo-ohms (kΩ) is 100 Ω? =
37. 37.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) the flow of charge (d) resistance
38. 38.📏 How many ohms (Ω) is 9.1 kΩ?
39. 39.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
40. 40.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True

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