Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 68 · 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.True or false: the push of a cell is measured in watts (W). (a) True (b) False
2. 2.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
3. 3.📏 How many ohms (Ω) is 5.2 kΩ?
4. 4.True or false: the voltmeter is joined in series. (a) False (b) True
5. 5.True or false: the voltmeter measures voltage. (a) True (b) False
6. 6.📏 How many ohms (Ω) is 2.7 kΩ?
7. 7.📏 How many amperes (A) is 1780 mA? =
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
9. 9.True or false: how much a part resists is measured in volts (V). (a) True (b) False
10. 10.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) the push of a cell (d) power
11. 11.📏 How many kilo-ohms (kΩ) is 8600 Ω? =
12. 12.Which of these is measured in amperes (A)? (a) the push of a cell (b) the flow of charge (c) resistance (d) power
13. 13.📏 How many kilo-ohms (kΩ) is 5700 Ω? =
14. 14.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
16. 16.True or false: the push of a cell is measured in volts (V). (a) False (b) True
17. 17.Which of these is measured in amperes (A)? (a) power (b) current (c) the push of a cell (d) how much a part resists
18. 18.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
19. 19.True or false: power is measured in volts (V). (a) True (b) False
20. 20.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
21. 21.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) voltage
22. 22.True or false: resistance is measured in ohms (Ω). (a) False (b) True
23. 23.📏 How many amperes (A) is 1800 mA? =
24. 24.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
25. 25.📏 How many watts (W) is 2.7 kW?
26. 26.📏 How many watts (W) is 0.8 kW?
27. 27.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
28. 28.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
29. 29.📏 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
30. 30.📏 How many watts (W) is 4.4 kW?
31. 31.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
32. 32.📏 How many amperes (A) is 2840 mA? =
33. 33.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) the flow of charge (d) the push of a cell
34. 34.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
35. 35.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
36. 36.📏 How many kilowatts (kW) is 2650 W? =
37. 37.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
38. 38.📏 How many kilo-ohms (kΩ) is 5100 Ω? =
39. 39.📏 How many milliamperes (mA) is 1.87 A?
40. 40.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)

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