Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 613 · 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.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
2. 2.📏 How many ohms (Ω) is 8.1 kΩ?
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
4. 4.📏 How many ohms (Ω) is 1.7 kΩ?
5. 5.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 100 (d) 10
6. 6.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) energy used each second (d) current
7. 7.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
8. 8.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
9. 9.True or false: the voltmeter is joined across a part. (a) True (b) False
10. 10.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
11. 11.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
12. 12.Which of these is measured in volts (V)? (a) resistance (b) the push of a cell (c) power (d) energy used each second
13. 13.True or false: resistance is measured in ohms (Ω). (a) True (b) False
14. 14.True or false: power is measured in watts (W). (a) True (b) False
15. 15.📏 How many ohms (Ω) is 7.2 kΩ?
16. 16.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
18. 18.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
19. 19.📏 How many kilowatts (kW) is 1050 W? =
20. 20.📏 How many amperes (A) is 970 mA? =
21. 21.📏 How many kilo-ohms (kΩ) is 7200 Ω? =
22. 22.📏 How many watts (W) is 4.5 kW?
23. 23.📏 How many ohms (Ω) is 8.8 kΩ?
24. 24.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
25. 25.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
26. 26.True or false: the ammeter is joined in series. (a) False (b) True
27. 27.Which of these is measured in watts (W)? (a) energy used each second (b) current (c) how much a part resists (d) the flow of charge
28. 28.True or false: energy used each second is measured in watts (W). (a) False (b) True
29. 29.📏 How many milliamperes (mA) is 1.08 A?
30. 30.True or false: voltage is measured in ohms (Ω). (a) True (b) False
31. 31.True or false: the push of a cell is measured in volts (V). (a) False (b) True
32. 32.📏 How many kilowatts (kW) is 1250 W? =
33. 33.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
34. 34.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
35. 35.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
36. 36.📏 How many kilo-ohms (kΩ) is 5600 Ω? =
37. 37.Which of these is measured in amperes (A)? (a) power (b) voltage (c) current (d) how much a part resists
38. 38.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
39. 39.True or false: resistance is measured in watts (W). (a) True (b) False
40. 40.True or false: voltage is measured in amperes (A). (a) True (b) False

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