Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 570 · 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.Which of these is measured in ohms (Ω)? (a) energy used each second (b) power (c) voltage (d) resistance
2. 2.📏 How many watts (W) is 2.8 kW?
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
4. 4.📏 How many kilowatts (kW) is 1850 W? =
5. 5.True or false: power is measured in volts (V). (a) True (b) False
6. 6.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
7. 7.📏 How many kilo-ohms (kΩ) is 9700 Ω? =
8. 8.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
9. 9.Which of these is measured in watts (W)? (a) power (b) resistance (c) voltage (d) current
10. 10.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
11. 11.True or false: how much a part resists is measured in volts (V). (a) True (b) False
12. 12.📏 How many ohms (Ω) is 6.8 kΩ?
13. 13.Which of these is measured in amperes (A)? (a) power (b) current (c) how much a part resists (d) resistance
14. 14.📏 How many ohms (Ω) is 1.5 kΩ?
15. 15.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) voltage (c) the flow of charge (d) the push of a cell
16. 16.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
17. 17.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.📏 How many kilo-ohms (kΩ) is 3000 Ω? =
20. 20.True or false: voltage is measured in amperes (A). (a) True (b) False
21. 21.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
22. 22.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) energy used each second (d) the push of a cell
23. 23.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
24. 24.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
25. 25.📏 How many ohms (Ω) is 5.2 kΩ?
26. 26.True or false: current is measured in amperes (A). (a) False (b) True
27. 27.📏 How many milliamperes (mA) is 0.5 A?
28. 28.📏 How many ohms (Ω) is 9 kΩ?
29. 29.📏 How many milliamperes (mA) is 1.22 A?
30. 30.📏 How many kilo-ohms (kΩ) is 4600 Ω? =
31. 31.True or false: the ammeter is joined in series. (a) True (b) False
32. 32.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
33. 33.📏 How many ohms (Ω) is 4.6 kΩ?
34. 34.True or false: current is measured in ohms (Ω). (a) True (b) False
35. 35.True or false: the voltmeter measures voltage. (a) False (b) True
36. 36.📏 How many kilowatts (kW) is 300 W? =
37. 37.Which of these is measured in volts (V)? (a) current (b) power (c) resistance (d) voltage
38. 38.📏 How many watts (W) is 0.9 kW?
39. 39.True or false: resistance is measured in amperes (A). (a) False (b) True
40. 40.True or false: the voltmeter is joined across a part. (a) True (b) False

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