Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 274 · 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: how much a part resists is measured in ohms (Ω). (a) True (b) False
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
4. 4.Which of these is measured in ohms (Ω)? (a) energy used each second (b) the push of a cell (c) how much a part resists (d) the flow of charge
5. 5.📏 How many watts (W) is 3.8 kW?
6. 6.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the flow of water (d) the water pressure
7. 7.True or false: the voltmeter measures voltage. (a) False (b) True
8. 8.📏 Which unit measures current? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
9. 9.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
10. 10.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
11. 11.📏 How many ohms (Ω) is 8.6 kΩ?
12. 12.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
13. 13.📏 How many kilo-ohms (kΩ) is 3800 Ω? =
14. 14.True or false: the ammeter is joined in series. (a) False (b) True
15. 15.📏 How many kilowatts (kW) is 1450 W? =
16. 16.📏 How many kilo-ohms (kΩ) is 6900 Ω? =
17. 17.Which of these is measured in amperes (A)? (a) how much a part resists (b) the flow of charge (c) energy used each second (d) power
18. 18.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
19. 19.True or false: voltage is measured in watts (W). (a) False (b) True
20. 20.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
21. 21.True or false: the ammeter measures voltage. (a) False (b) True
22. 22.📏 How many kilo-ohms (kΩ) is 9200 Ω? =
23. 23.True or false: energy used each second is measured in amperes (A). (a) True (b) False
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.📏 How many watts (W) is 1.4 kW?
26. 26.📏 How many milliamperes (mA) is 1.07 A?
27. 27.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
28. 28.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) how much a part resists
29. 29.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
30. 30.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) how much a part resists (d) voltage
31. 31.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
32. 32.📏 How many kilo-ohms (kΩ) is 5100 Ω? =
33. 33.📏 How many amperes (A) is 1290 mA? =
34. 34.True or false: resistance is measured in ohms (Ω). (a) False (b) True
35. 35.📏 How many ohms (Ω) is 5.8 kΩ?
36. 36.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) voltage (d) energy used each second
37. 37.📏 How many milliamperes (mA) is 1.28 A?
38. 38.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
39. 39.📏 How many amperes (A) is 1050 mA? =
40. 40.True or false: the ammeter measures current. (a) True (b) False

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