Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 647 · 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.📏 How many kilo-ohms (kΩ) is 8300 Ω? =
2. 2.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) power (d) voltage
3. 3.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
4. 4.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) the flow of charge (d) voltage
5. 5.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) power (d) how much a part resists
6. 6.📏 How many milliamperes (mA) is 0.36 A?
7. 7.📏 How many kilowatts (kW) is 2250 W? =
8. 8.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
9. 9.📏 How many kilo-ohms (kΩ) is 200 Ω? =
10. 10.📏 How many amperes (A) is 2950 mA? =
11. 11.True or false: how much a part resists is measured in volts (V). (a) False (b) True
12. 12.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) how much a part resists (d) current
13. 13.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
14. 14.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
15. 15.Which of these is measured in amperes (A)? (a) power (b) energy used each second (c) current (d) voltage
16. 16.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
17. 17.True or false: the ammeter is joined across a part. (a) True (b) False
18. 18.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
19. 19.📏 How many amperes (A) is 170 mA? =
20. 20.📏 How many watts (W) is 0.5 kW?
21. 21.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
22. 22.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) energy used each second (d) how much a part resists
23. 23.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) the flow of charge (d) resistance
24. 24.True or false: how much a part resists is measured in watts (W). (a) False (b) True
25. 25.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
26. 26.📏 How many kilowatts (kW) is 3600 W? =
27. 27.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
28. 28.📏 How many ohms (Ω) is 4.8 kΩ?
29. 29.True or false: voltage is measured in ohms (Ω). (a) True (b) False
30. 30.📏 How many milliamperes (mA) is 0.67 A?
31. 31.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the pipe colour (d) the water pressure
32. 32.📏 How many ohms (Ω) is 7.1 kΩ?
33. 33.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) the pipe colour
34. 34.📏 How many amperes (A) is 1310 mA? =
35. 35.True or false: the ammeter is joined in series. (a) True (b) False
36. 36.True or false: current is measured in ohms (Ω). (a) True (b) False
37. 37.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
38. 38.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
39. 39.True or false: the voltmeter is joined across a part. (a) False (b) True
40. 40.📏 How many watts (W) is 2.5 kW?

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