Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 636 · 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.True or false: the ammeter measures voltage. (a) False (b) True
2. 2.📏 How many milliamperes (mA) is 0.64 A?
3. 3.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
4. 4.📏 How many kilo-ohms (kΩ) is 6700 Ω? =
5. 5.Which of these is measured in ohms (Ω)? (a) resistance (b) power (c) voltage (d) the flow of charge
6. 6.True or false: the flow of charge is measured in volts (V). (a) False (b) True
7. 7.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
8. 8.True or false: the voltmeter is joined in series. (a) False (b) True
9. 9.True or false: power is measured in volts (V). (a) True (b) False
10. 10.📏 How many kilo-ohms (kΩ) is 700 Ω? =
11. 11.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
12. 12.True or false: voltage is measured in ohms (Ω). (a) True (b) False
13. 13.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
14. 14.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) voltage (d) how much a part resists
15. 15.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
16. 16.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
17. 17.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
18. 18.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
19. 19.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
20. 20.📏 How many kilowatts (kW) is 1350 W? =
21. 21.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) resistance (d) energy used each second
22. 22.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
23. 23.True or false: the voltmeter measures current. (a) True (b) False
24. 24.True or false: energy used each second is measured in volts (V). (a) False (b) True
25. 25.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
26. 26.Which of these is measured in ohms (Ω)? (a) energy used each second (b) power (c) how much a part resists (d) the push of a cell
27. 27.📏 How many watts (W) is 2 kW?
28. 28.📏 How many ohms (Ω) is 6.7 kΩ?
29. 29.True or false: current is measured in ohms (Ω). (a) True (b) False
30. 30.📏 How many kilowatts (kW) is 3000 W? =
31. 31.True or false: resistance is measured in watts (W). (a) False (b) True
32. 32.📏 How many watts (W) is 1.8 kW?
33. 33.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
34. 34.📏 How many kilowatts (kW) is 4350 W? =
35. 35.📏 How many milliamperes (mA) is 2.16 A?
36. 36.True or false: energy used each second is measured in watts (W). (a) False (b) True
37. 37.📏 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
38. 38.True or false: the ammeter is joined in series. (a) True (b) False
39. 39.True or false: resistance is measured in ohms (Ω). (a) False (b) True
40. 40.Which of these is measured in volts (V)? (a) current (b) power (c) energy used each second (d) voltage

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