Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 1 · 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 ohms (Ω) is 1.6 kΩ?
2. 2.True or false: voltage is measured in ohms (Ω). (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
4. 4.True or false: the ammeter is joined in series. (a) False (b) True
5. 5.📏 How many kilo-ohms (kΩ) is 200 Ω? =
6. 6.Which of these is measured in ohms (Ω)? (a) current (b) how much a part resists (c) voltage (d) the push of a cell
7. 7.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
8. 8.Which of these is measured in volts (V)? (a) the push of a cell (b) current (c) how much a part resists (d) resistance
9. 9.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
10. 10.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
11. 11.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
12. 12.True or false: power is measured in volts (V). (a) False (b) True
13. 13.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
14. 14.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
16. 16.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
18. 18.True or false: the ammeter measures current. (a) True (b) False
19. 19.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) energy used each second (d) current
20. 20.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
21. 21.📏 How many milliamperes (mA) is 0.13 A?
22. 22.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) the push of a cell (d) power
23. 23.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
24. 24.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
25. 25.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) current (c) resistance (d) energy used each second
26. 26.📏 How many kilo-ohms (kΩ) is 9900 Ω? =
27. 27.True or false: voltage is measured in volts (V). (a) True (b) False
28. 28.True or false: how much a part resists is measured in volts (V). (a) True (b) False
29. 29.True or false: the voltmeter measures voltage. (a) True (b) False
30. 30.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
31. 31.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) voltage (d) the flow of charge
32. 32.📏 How many ohms (Ω) is 4.1 kΩ?
33. 33.Which of these is measured in volts (V)? (a) the flow of charge (b) resistance (c) voltage (d) energy used each second
34. 34.True or false: voltage is measured in watts (W). (a) False (b) True
35. 35.📏 How many kilowatts (kW) is 4450 W? =
36. 36.📏 How many milliamperes (mA) is 1.17 A?
37. 37.True or false: the ammeter measures voltage. (a) True (b) False
38. 38.📏 How many watts (W) is 2.1 kW?
39. 39.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
40. 40.📏 How many kilo-ohms (kΩ) is 7700 Ω? =

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