Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 691 · 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.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) the water pressure (d) a narrow pipe
2. 2.📏 How many kilo-ohms (kΩ) is 4300 Ω? =
3. 3.📏 How many kilowatts (kW) is 450 W? =
4. 4.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
5. 5.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) the push of a cell (d) resistance
6. 6.True or false: the push of a cell is measured in volts (V). (a) False (b) True
7. 7.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
8. 8.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
9. 9.📏 How many kilowatts (kW) is 2250 W? =
10. 10.True or false: the ammeter measures current. (a) False (b) True
11. 11.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
12. 12.📏 How many amperes (A) is 610 mA? =
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
14. 14.📏 How many kilo-ohms (kΩ) is 3600 Ω? =
15. 15.True or false: the voltmeter is joined in series. (a) False (b) True
16. 16.Which of these is measured in watts (W)? (a) the flow of charge (b) energy used each second (c) voltage (d) how much a part resists
17. 17.True or false: current is measured in amperes (A). (a) True (b) False
18. 18.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
19. 19.📏 How many milliamperes (mA) is 0.7 A?
20. 20.📏 How many milliamperes (mA) is 0.41 A?
21. 21.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
22. 22.📏 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
23. 23.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
24. 24.Which of these is measured in volts (V)? (a) voltage (b) how much a part resists (c) energy used each second (d) power
25. 25.📏 How many amperes (A) is 1220 mA? =
26. 26.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
27. 27.True or false: voltage is measured in ohms (Ω). (a) False (b) True
28. 28.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
29. 29.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
30. 30.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
31. 31.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
32. 32.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
33. 33.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) power (c) voltage (d) resistance
34. 34.📏 How many watts (W) is 0.3 kW?
35. 35.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
36. 36.True or false: the ammeter measures voltage. (a) False (b) True
37. 37.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
38. 38.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
39. 39.📏 How many kilowatts (kW) is 1350 W? =
40. 40.📏 How many ohms (Ω) is 3.7 kΩ?

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