Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 59 · 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: voltage is measured in amperes (A). (a) True (b) False
2. 2.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
3. 3.Which of these is measured in amperes (A)? (a) energy used each second (b) voltage (c) power (d) the flow of charge
4. 4.📏 How many kilo-ohms (kΩ) is 2900 Ω? =
5. 5.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
6. 6.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
7. 7.Which of these is measured in volts (V)? (a) how much a part resists (b) current (c) voltage (d) the flow of charge
8. 8.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
9. 9.📏 How many ohms (Ω) is 1.8 kΩ?
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.📏 How many milliamperes (mA) is 2.2 A?
12. 12.True or false: the voltmeter measures voltage. (a) True (b) False
13. 13.📏 How many milliamperes (mA) is 1.17 A?
14. 14.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
15. 15.📏 How many amperes (A) is 770 mA? =
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
17. 17.True or false: the ammeter is joined in series. (a) True (b) False
18. 18.Which of these is measured in ohms (Ω)? (a) power (b) resistance (c) voltage (d) current
19. 19.True or false: power is measured in volts (V). (a) False (b) True
20. 20.📏 How many milliamperes (mA) is 0.9 A?
21. 21.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
22. 22.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) the push of a cell (d) resistance
23. 23.True or false: the ammeter measures voltage. (a) False (b) True
24. 24.True or false: power is measured in amperes (A). (a) True (b) False
25. 25.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the flow of water (d) the water pressure
26. 26.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
27. 27.Which of these is measured in watts (W)? (a) the push of a cell (b) the flow of charge (c) power (d) current
28. 28.📏 How many amperes (A) is 2560 mA? =
29. 29.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) voltage (c) how much a part resists (d) power
30. 30.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
31. 31.📏 How many amperes (A) is 1480 mA? =
32. 32.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
33. 33.📏 How many kilo-ohms (kΩ) is 3000 Ω? =
34. 34.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
35. 35.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
36. 36.📏 How many kilo-ohms (kΩ) is 9600 Ω? =
37. 37.📏 How many kilowatts (kW) is 1250 W? =
38. 38.📏 How many watts (W) is 4.9 kW?
39. 39.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
40. 40.📏 How many milliamperes (mA) is 2.02 A?

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