Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 367 · 40 questions

Remember (Find the topic, use the idea): Find the topic: energy, safety, conductor, closed loop, switches, cells, symbols, series or parallel. Use that lesson’s idea — complete loop, all ON for series, cells add up, one path or many. For sums, write the working and check it again.

1. 1.True or false: to use a cable with cuts is not safe. (a) False (b) True
2. 2.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
3. 3.Which of these gives us electricity? (a) an air conditioner (b) a mobile phone (c) a water pump (d) a battery
4. 4.💡 2 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
5. 5.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) one tall, one short bar (c) a circle with V inside (d) a circle with A inside
6. 6.🔌 A gap of dry air between two wires acts as … (a) a cell (b) an insulator (c) a conductor (d) a switch that is ON
7. 7.Which of these is true of a series circuit? (a) many paths for current (b) each gets the full volts (c) a single current path (d) one out, the rest glow
8. 8.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) − (negative) (b) + (positive)
9. 9.💡 5 identical bulbs are in parallel and each bulb has its own switch on its path. 2 of the switches are OFF and the rest are ON. How many bulbs glow?
10. 10.Which of these means the circuit is closed? (a) a wire has come loose (b) all wires are joined (c) a wire is cut (d) the switch is OFF
11. 11.Which of these is true of a series circuit? (a) used in house wiring (b) one bulb out, all go out (c) own switch for each bulb (d) one out, the rest glow
12. 12.🔌 Which part of a screwdriver should an electrician hold? (a) the plastic handle (b) the metal tip (c) the steel shaft (d) the bare end
13. 13.🔍 Which is the odd one out? (a) a loudspeaker (b) a siren (c) a buzzer (d) an electric toy car
14. 14.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) dimmer (c) the same
15. 15.True or false: “used in house wiring” is true of a parallel circuit. (a) True (b) False
16. 16.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a stranger online (c) a trusted adult (d) a younger child
17. 17.True or false: on a cell, “the shorter symbol line” means the − (negative) end. (a) False (b) True
18. 18.🔁 Is the circuit closed or open if the switch is OFF? (a) closed (b) open
19. 19.🔌 Is a steel coin a conductor or an insulator? (a) an insulator (b) a conductor
20. 20.🔦 A circuit has a new cell, a good bulb and a switch that is ON. One wire has come loose from the cell. Does the bulb glow? (a) No (b) Yes
21. 21.⚡ What does a doorbell mainly change electricity into? (a) movement (b) sound (c) heat (d) light
22. 22.What does a tilt switch do? (a) works only while pressed (b) slides side to side (c) closes when tipped over (d) springs back when let go
23. 23.🔁 Is the circuit closed or open if the switch is ON? (a) open (b) closed
24. 24.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) + (positive) (b) − (negative)
25. 25.⚡ What does an electric drill mainly change electricity into? (a) movement (b) heat (c) light (d) sound
26. 26.⚡ Which tiny particles drift along a metal wire to carry the current? (a) electrons (b) water drops (c) photons (d) dust particles
27. 27.True or false: a toggle switch stays where you flip it. (a) True (b) False
28. 28.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a woollen thread across the gap. Does the bulb glow? (a) No (b) Yes
29. 29.🔋 Does a washing machine give electricity or use electricity? (a) gives electricity (b) uses electricity
30. 30.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
31. 31.⚡ A fan changes electrical energy mainly into which kind of energy? (a) sound energy (b) chemical energy (c) light energy (d) movement energy
32. 32.True or false: a slide switch slides side to side. (a) True (b) False
33. 33.💡 A battery lights 5 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) dimmer (b) the same (c) brighter
34. 34.Which of these is a conductor? (a) a steel spoon (b) a glass marble (c) a wooden stick (d) a cotton thread
35. 35.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
36. 36.True or false: on a cell, “usually the red wire” means the + (positive) end. (a) False (b) True
37. 37.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
38. 38.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
39. 39.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a reed switch (c) a push button (d) a toggle switch
40. 40.🔌 Is a ceramic cup a conductor or an insulator? (a) an insulator (b) a conductor

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