Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 467 · 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 voltage? (a) ammeter (b) voltmeter
2. 2.📏 How many amperes (A) is 950 mA? =
3. 3.True or false: energy used each second is measured in watts (W). (a) False (b) True
4. 4.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) the water pressure (d) a narrow pipe
5. 5.Which of these is measured in ohms (Ω)? (a) voltage (b) the flow of charge (c) how much a part resists (d) current
6. 6.📏 How many ohms (Ω) is 7.9 kΩ?
7. 7.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
8. 8.📏 How many amperes (A) is 2940 mA? =
9. 9.True or false: the voltmeter is joined in series. (a) True (b) False
10. 10.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
11. 11.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
12. 12.📏 How many milliamperes (mA) is 0.49 A?
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
14. 14.📏 Which unit measures current? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
15. 15.True or false: voltage is measured in volts (V). (a) True (b) False
16. 16.📏 How many kilo-ohms (kΩ) is 7000 Ω? =
17. 17.Which of these is measured in amperes (A)? (a) power (b) current (c) resistance (d) how much a part resists
18. 18.📏 How many ohms (Ω) is 0.1 kΩ?
19. 19.📏 How many ohms (Ω) is 8.4 kΩ?
20. 20.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
21. 21.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
22. 22.📏 How many milliamperes (mA) is 0.41 A?
23. 23.Which of these is measured in watts (W)? (a) power (b) resistance (c) how much a part resists (d) the push of a cell
24. 24.True or false: voltage is measured in amperes (A). (a) False (b) True
25. 25.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) current (d) the push of a cell
26. 26.True or false: the ammeter measures voltage. (a) False (b) True
27. 27.📏 How many kilowatts (kW) is 600 W? =
28. 28.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
29. 29.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
30. 30.True or false: the voltmeter measures current. (a) False (b) True
31. 31.📏 How many ohms (Ω) is 6.6 kΩ?
32. 32.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
33. 33.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
34. 34.📏 How many amperes (A) is 310 mA? =
35. 35.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) how much a part resists (d) the push of a cell
36. 36.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
37. 37.True or false: the voltmeter measures voltage. (a) True (b) False
38. 38.📏 How many kilowatts (kW) is 4800 W? =
39. 39.True or false: the ammeter measures current. (a) True (b) False
40. 40.📏 How many watts (W) is 1.2 kW?

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