Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 385 · 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.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
2. 2.📏 How many ohms (Ω) is 9.5 kΩ?
3. 3.True or false: the ammeter is joined across a part. (a) False (b) True
4. 4.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
5. 5.True or false: the ammeter is joined in series. (a) True (b) False
6. 6.📏 How many kilo-ohms (kΩ) is 3300 Ω? =
7. 7.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
8. 8.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) the flow of charge (d) how much a part resists
9. 9.📏 How many amperes (A) is 330 mA? =
10. 10.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) the water pressure (d) a narrow pipe
11. 11.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 10 (d) 100
12. 12.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
13. 13.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
14. 14.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
15. 15.📏 How many watts (W) is 0.4 kW?
16. 16.True or false: resistance is measured in ohms (Ω). (a) True (b) False
17. 17.True or false: the ammeter measures voltage. (a) True (b) False
18. 18.True or false: voltage is measured in amperes (A). (a) False (b) True
19. 19.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
20. 20.True or false: power is measured in watts (W). (a) False (b) True
21. 21.Which of these is measured in watts (W)? (a) resistance (b) the push of a cell (c) voltage (d) energy used each second
22. 22.📏 How many kilo-ohms (kΩ) is 6500 Ω? =
23. 23.True or false: voltage is measured in watts (W). (a) True (b) False
24. 24.📏 How many milliamperes (mA) is 2.88 A?
25. 25.Which of these is measured in amperes (A)? (a) power (b) voltage (c) current (d) resistance
26. 26.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
27. 27.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
28. 28.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
29. 29.True or false: the voltmeter measures voltage. (a) False (b) True
30. 30.📏 How many ohms (Ω) is 5.2 kΩ?
31. 31.📏 How many kilowatts (kW) is 3150 W? =
32. 32.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
34. 34.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
35. 35.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
36. 36.True or false: power is measured in ohms (Ω). (a) True (b) False
37. 37.📏 How many kilo-ohms (kΩ) is 600 Ω? =
38. 38.True or false: the voltmeter measures current. (a) True (b) False
39. 39.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
40. 40.Which of these is measured in watts (W)? (a) resistance (b) voltage (c) current (d) power

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