Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 880 · 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 flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
2. 2.📏 How many kilo-ohms (kΩ) is 300 Ω? =
3. 3.📏 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
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
5. 5.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
6. 6.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
7. 7.Which of these is measured in watts (W)? (a) current (b) energy used each second (c) the push of a cell (d) how much a part resists
8. 8.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
9. 9.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
10. 10.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the pipe colour (d) the water pressure
11. 11.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
12. 12.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
13. 13.📏 How many kilowatts (kW) is 1450 W? =
14. 14.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
15. 15.True or false: how much a part resists is measured in volts (V). (a) False (b) True
16. 16.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
18. 18.True or false: power is measured in watts (W). (a) False (b) True
19. 19.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) how much a part resists (d) the flow of charge
20. 20.📏 How many amperes (A) is 2710 mA? =
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
22. 22.Which of these is measured in watts (W)? (a) resistance (b) the flow of charge (c) voltage (d) power
23. 23.📏 How many kilowatts (kW) is 1500 W? =
24. 24.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
25. 25.True or false: the push of a cell is measured in volts (V). (a) True (b) False
26. 26.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) energy used each second (d) current
27. 27.📏 How many milliamperes (mA) is 0.44 A?
28. 28.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
29. 29.Which of these is measured in volts (V)? (a) the flow of charge (b) resistance (c) voltage (d) power
30. 30.True or false: the voltmeter measures voltage. (a) True (b) False
31. 31.True or false: the voltmeter measures current. (a) False (b) True
32. 32.📏 How many kilowatts (kW) is 450 W? =
33. 33.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) the push of a cell (d) energy used each second
34. 34.📏 How many amperes (A) is 1930 mA? =
35. 35.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
36. 36.True or false: power is measured in amperes (A). (a) False (b) True
37. 37.True or false: the voltmeter is joined across a part. (a) True (b) False
38. 38.True or false: the ammeter measures current. (a) False (b) True
39. 39.📏 How many kilowatts (kW) is 3300 W? =
40. 40.True or false: the ammeter is joined across a part. (a) True (b) False

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