Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 466 · 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 pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
2. 2.True or false: the ammeter measures voltage. (a) True (b) False
3. 3.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
4. 4.True or false: the ammeter is joined in series. (a) True (b) False
5. 5.📏 How many ohms (Ω) is 0.4 kΩ?
6. 6.📏 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
7. 7.True or false: the push of a cell is measured in volts (V). (a) False (b) True
8. 8.True or false: power is measured in volts (V). (a) True (b) False
9. 9.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
10. 10.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
11. 11.True or false: the voltmeter measures voltage. (a) False (b) True
12. 12.True or false: current is measured in ohms (Ω). (a) True (b) False
13. 13.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
14. 14.True or false: the voltmeter is joined in series. (a) True (b) False
15. 15.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
16. 16.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
17. 17.📏 How many amperes (A) is 1360 mA? =
18. 18.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) voltage
19. 19.Which of these is measured in amperes (A)? (a) resistance (b) current (c) energy used each second (d) the push of a cell
20. 20.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
22. 22.Which of these is measured in amperes (A)? (a) the push of a cell (b) the flow of charge (c) how much a part resists (d) voltage
23. 23.📏 How many kilo-ohms (kΩ) is 900 Ω? =
24. 24.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
25. 25.True or false: power is measured in ohms (Ω). (a) False (b) True
26. 26.Which of these is measured in watts (W)? (a) the flow of charge (b) how much a part resists (c) power (d) the push of a cell
27. 27.True or false: the ammeter measures current. (a) False (b) True
28. 28.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
29. 29.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) how much a part resists (d) energy used each second
30. 30.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
31. 31.📏 How many amperes (A) is 900 mA? =
32. 32.📏 How many ohms (Ω) is 2.8 kΩ?
33. 33.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
34. 34.True or false: voltage is measured in volts (V). (a) False (b) True
35. 35.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
36. 36.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) energy used each second (d) the push of a cell
37. 37.True or false: the voltmeter is joined across a part. (a) True (b) False
38. 38.True or false: the voltmeter measures current. (a) False (b) True
39. 39.📏 How many ohms (Ω) is 6.3 kΩ?
40. 40.📏 How many kilowatts (kW) is 700 W? =

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