Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 294 · 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 watts (W). (a) True (b) False
2. 2.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
3. 3.Which of these is measured in ohms (Ω)? (a) energy used each second (b) current (c) how much a part resists (d) power
4. 4.📏 How many kilo-ohms (kΩ) is 5400 Ω? =
5. 5.📏 How many kilo-ohms (kΩ) is 9300 Ω? =
6. 6.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
7. 7.📏 How many milliamperes (mA) is 2.56 A?
8. 8.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) the push of a cell (d) current
9. 9.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
10. 10.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
11. 11.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
12. 12.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
13. 13.📏 How many ohms (Ω) is 9.3 kΩ?
14. 14.True or false: power is measured in amperes (A). (a) False (b) True
15. 15.Which of these is measured in ohms (Ω)? (a) power (b) current (c) resistance (d) the flow of charge
16. 16.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
17. 17.True or false: energy used each second is measured in volts (V). (a) True (b) False
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.True or false: current is measured in ohms (Ω). (a) False (b) True
20. 20.📏 How many kilo-ohms (kΩ) is 2300 Ω? =
21. 21.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
22. 22.📏 How many ohms (Ω) is 5 kΩ?
23. 23.Which of these is measured in watts (W)? (a) how much a part resists (b) voltage (c) the flow of charge (d) energy used each second
24. 24.📏 How many kilowatts (kW) is 150 W? =
25. 25.📏 How many amperes (A) is 1110 mA? =
26. 26.True or false: energy used each second is measured in amperes (A). (a) True (b) False
27. 27.📏 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
28. 28.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 1000 (d) 10
29. 29.True or false: power is measured in ohms (Ω). (a) False (b) True
30. 30.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
31. 31.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
32. 32.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
33. 33.📏 How many amperes (A) is 200 mA? =
34. 34.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
35. 35.📏 How many amperes (A) is 1280 mA? =
36. 36.True or false: the ammeter is joined in series. (a) True (b) False
37. 37.True or false: the push of a cell is measured in watts (W). (a) True (b) False
38. 38.True or false: the ammeter is joined across a part. (a) True (b) False
39. 39.True or false: voltage is measured in amperes (A). (a) False (b) True
40. 40.📏 How many kilowatts (kW) is 350 W? =

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