Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 967 · 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 ohms (Ω) is 8.5 kΩ?
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 100 (d) 10
3. 3.📏 How many watts (W) is 3.2 kW?
4. 4.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
5. 5.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
6. 6.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
7. 7.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the flow of water (d) the water pressure
8. 8.📏 How many milliamperes (mA) is 0.68 A?
9. 9.True or false: the ammeter measures current. (a) False (b) True
10. 10.📏 How many kilowatts (kW) is 4850 W? =
11. 11.Which of these is measured in watts (W)? (a) energy used each second (b) how much a part resists (c) current (d) resistance
12. 12.📏 How many kilowatts (kW) is 1850 W? =
13. 13.Which of these is measured in volts (V)? (a) the push of a cell (b) how much a part resists (c) resistance (d) current
14. 14.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
15. 15.True or false: the voltmeter measures current. (a) False (b) True
16. 16.True or false: the push of a cell is measured in volts (V). (a) True (b) False
17. 17.📏 How many milliamperes (mA) is 0.3 A?
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.True or false: the ammeter measures voltage. (a) True (b) False
20. 20.📏 How many kilo-ohms (kΩ) is 6900 Ω? =
21. 21.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
22. 22.Which of these is measured in ohms (Ω)? (a) resistance (b) current (c) energy used each second (d) voltage
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the water pressure (d) the tap handle
24. 24.True or false: the voltmeter is joined across a part. (a) True (b) False
25. 25.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) the flow of charge (d) voltage
26. 26.📏 How many watts (W) is 3.4 kW?
27. 27.True or false: the ammeter is joined in series. (a) False (b) True
28. 28.📏 How many kilowatts (kW) is 1400 W? =
29. 29.True or false: voltage is measured in ohms (Ω). (a) True (b) False
30. 30.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
31. 31.Which of these is measured in volts (V)? (a) how much a part resists (b) the flow of charge (c) current (d) voltage
32. 32.📏 How many milliamperes (mA) is 2.56 A?
33. 33.True or false: power is measured in watts (W). (a) True (b) False
34. 34.📏 How many milliamperes (mA) is 0.04 A?
35. 35.📏 How many milliamperes (mA) is 2.14 A?
36. 36.True or false: the voltmeter is joined in series. (a) False (b) True
37. 37.📏 How many watts (W) is 0.5 kW?
38. 38.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
40. 40.True or false: energy used each second is measured in watts (W). (a) False (b) True

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