Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 15 · 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 unit measures energy used each second? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
2. 2.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
3. 3.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) resistance (d) the flow of charge
4. 4.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1024 (d) 1000
5. 5.📏 How many milliamperes (mA) is 0.11 A?
6. 6.True or false: the ammeter measures current. (a) False (b) True
7. 7.📏 How many kilowatts (kW) is 1400 W? =
8. 8.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
9. 9.📏 How many amperes (A) is 1320 mA? =
10. 10.📏 How many milliamperes (mA) is 2.35 A?
11. 11.True or false: the push of a cell is measured in volts (V). (a) True (b) False
12. 12.True or false: voltage is measured in amperes (A). (a) False (b) True
13. 13.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
14. 14.True or false: the voltmeter is joined in series. (a) False (b) True
15. 15.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
17. 17.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
18. 18.📏 How many kilowatts (kW) is 1200 W? =
19. 19.📏 How many kilowatts (kW) is 550 W? =
20. 20.True or false: the voltmeter measures voltage. (a) False (b) True
21. 21.📏 How many kilowatts (kW) is 2950 W? =
22. 22.True or false: the voltmeter is joined across a part. (a) True (b) False
23. 23.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) current (d) power
24. 24.📏 How many kilowatts (kW) is 1150 W? =
25. 25.📏 How many milliamperes (mA) is 2.71 A?
26. 26.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) power (d) how much a part resists
27. 27.📏 How many kilo-ohms (kΩ) is 7100 Ω? =
28. 28.True or false: how much a part resists is measured in watts (W). (a) True (b) False
29. 29.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
30. 30.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
31. 31.Which of these is measured in ohms (Ω)? (a) voltage (b) the push of a cell (c) how much a part resists (d) the flow of charge
32. 32.True or false: power is measured in amperes (A). (a) False (b) True
33. 33.📏 How many kilowatts (kW) is 2800 W? =
34. 34.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 100 (d) 60
35. 35.True or false: the ammeter measures voltage. (a) False (b) True
36. 36.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
37. 37.True or false: the voltmeter measures current. (a) True (b) False
38. 38.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
39. 39.📏 How many kilo-ohms (kΩ) is 4900 Ω? =
40. 40.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) energy used each second (d) current

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