Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 62 · 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 the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
2. 2.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
3. 3.True or false: voltage is measured in volts (V). (a) True (b) False
4. 4.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
5. 5.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
6. 6.True or false: the push of a cell is measured in volts (V). (a) False (b) True
7. 7.📏 How many kilowatts (kW) is 2150 W? =
8. 8.True or false: the ammeter measures voltage. (a) False (b) True
9. 9.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
10. 10.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the water tank lid (d) the pipe colour
11. 11.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) energy used each second (d) the flow of charge
12. 12.📏 How many kilo-ohms (kΩ) is 8600 Ω? =
13. 13.📏 How many kilo-ohms (kΩ) is 2700 Ω? =
14. 14.True or false: the ammeter is joined in series. (a) False (b) True
15. 15.📏 How many milliamperes (mA) is 1.37 A?
16. 16.Which of these is measured in watts (W)? (a) how much a part resists (b) current (c) power (d) resistance
17. 17.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
18. 18.📏 How many milliamperes (mA) is 2.6 A?
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
20. 20.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
21. 21.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) power (d) voltage
22. 22.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
23. 23.📏 How many watts (W) is 3.8 kW?
24. 24.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
25. 25.True or false: power is measured in watts (W). (a) False (b) True
26. 26.Which of these is measured in volts (V)? (a) current (b) resistance (c) the push of a cell (d) power
27. 27.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
28. 28.Which of these is measured in watts (W)? (a) the push of a cell (b) resistance (c) the flow of charge (d) energy used each second
29. 29.📏 How many ohms (Ω) is 5.3 kΩ?
30. 30.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
31. 31.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
32. 32.True or false: current is measured in volts (V). (a) True (b) False
33. 33.📏 How many milliamperes (mA) is 2.83 A?
34. 34.📏 How many watts (W) is 1.1 kW?
35. 35.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
36. 36.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
37. 37.📏 How many amperes (A) is 860 mA? =
38. 38.📏 How many amperes (A) is 140 mA? =
39. 39.📏 How many milliamperes (mA) is 2.68 A?
40. 40.True or false: resistance is measured in ohms (Ω). (a) True (b) False

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