Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 376 · 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.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
2. 2.📏 How many amperes (A) is 1950 mA? =
3. 3.True or false: the voltmeter is joined in series. (a) True (b) False
4. 4.True or false: current is measured in amperes (A). (a) False (b) True
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
6. 6.Which of these is measured in amperes (A)? (a) current (b) power (c) resistance (d) voltage
7. 7.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
8. 8.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
9. 9.True or false: voltage is measured in volts (V). (a) False (b) True
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: the ammeter measures current. (a) True (b) False
12. 12.📏 How many ohms (Ω) is 3.5 kΩ?
13. 13.📏 How many watts (W) is 0.6 kW?
14. 14.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) a narrow pipe (d) the flow of water
15. 15.📏 How many kilo-ohms (kΩ) is 1400 Ω? =
16. 16.Which of these is measured in ohms (Ω)? (a) power (b) voltage (c) the push of a cell (d) how much a part resists
17. 17.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) resistance (d) the push of a cell
18. 18.📏 How many watts (W) is 3 kW?
19. 19.📏 How many kilo-ohms (kΩ) is 2700 Ω? =
20. 20.True or false: the push of a cell is measured in volts (V). (a) True (b) False
21. 21.True or false: voltage is measured in amperes (A). (a) False (b) True
22. 22.Which of these is measured in volts (V)? (a) voltage (b) power (c) how much a part resists (d) energy used each second
23. 23.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) voltage (d) current
24. 24.📏 How many kilowatts (kW) is 600 W? =
25. 25.📏 How many ohms (Ω) is 5.6 kΩ?
26. 26.True or false: power is measured in amperes (A). (a) True (b) False
27. 27.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
28. 28.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
30. 30.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
31. 31.📏 How many kilowatts (kW) is 550 W? =
32. 32.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
34. 34.📏 How many ohms (Ω) is 1.2 kΩ?
35. 35.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
36. 36.True or false: the voltmeter measures current. (a) False (b) True
37. 37.Which of these is measured in watts (W)? (a) power (b) the push of a cell (c) voltage (d) how much a part resists
38. 38.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
39. 39.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
40. 40.True or false: the ammeter is joined across a part. (a) True (b) False

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