Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 575 · 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: “a single current path” is true of a parallel circuit. (a) False (b) True
2. 2.Which of these is true of a series circuit? (a) own switch for each bulb (b) each gets the full volts (c) one bulb out, all go out (d) one out, the rest glow
3. 3.Which of these gives us electricity? (a) a refrigerator (b) a computer (c) an air conditioner (d) a generator
4. 4.⚡ A fan changes electrical energy mainly into which kind of energy? (a) light energy (b) movement energy (c) sound energy (d) chemical energy
5. 5.Which of these is safe? (a) throw cells in a fire (b) touch a switch when wet (c) fly kites in open fields (d) use mains for a project
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) switch (c) battery (d) LED
7. 7.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 5 of the switches are OFF and the rest are ON. How many bulbs glow?
8. 8.Which of these is a conductor? (a) a paper strip (b) a dry cork (c) a steel spoon (d) a rubber band
9. 9.True or false: on a cell, “the longer symbol line” means the − (negative) end. (a) True (b) False
10. 10.⚡ What does an electric kettle mainly change electricity into? (a) sound (b) movement (c) heat (d) light
11. 11.Which of these is an insulator? (a) a steel spoon (b) aluminium foil (c) a rubber band (d) a steel coin
12. 12.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
13. 13.🔋 Cells joined + to − in a row (series) give … (a) a smaller voltage (b) no voltage (c) the same voltage (d) a bigger voltage
14. 14.True or false: a tube light mainly gives out light. (a) True (b) False
15. 15.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
16. 16.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a glass marble across the gap. Does the bulb glow? (a) Yes (b) No
17. 17.🔍 Which is the odd one out? (a) a graphite rod (b) a glass marble (c) a wooden stick (d) a ceramic cup
18. 18.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a tilt switch
19. 19.🔍 Which is the odd one out? (a) a torch (b) a loudspeaker (c) a traffic signal (d) a night lamp
20. 20.Which of these is not safe? (a) stop if a part gets hot (b) take cells out after use (c) keep drinks far away (d) fly a kite near wires
21. 21.⚡ A solar panel changes which kind of energy into electricity? (a) wind energy (b) chemical energy (c) sound energy (d) light energy
22. 22.⚡ Which tiny particles drift along a metal wire to carry the current? (a) water drops (b) electrons (c) photons (d) dust particles
23. 23.🔁 In an old-style bulb, which thin wire glows when current flows? (a) the glass (b) the switch (c) the base (d) the filament
24. 24.⚡ What does a toaster mainly change electricity into? (a) movement (b) heat (c) light (d) sound
25. 25.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
26. 26.🔌 Most metals are good … (a) insulators (b) magnets only (c) batteries (d) conductors
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) voltmeter (c) LED (d) bulb
28. 28.True or false: to stop if a part gets hot is safe. (a) True (b) False
29. 29.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
30. 30.💡 Why is house wiring done in parallel? (a) to make bulbs dim (b) so all go off together (c) each gets full voltage (d) to save copper only
31. 31.Which of these is true of a parallel circuit? (a) a single current path (b) bulbs share the voltage (c) a break stops every bulb (d) each gets the full volts
32. 32.True or false: “each gets the full volts” is true of a series circuit. (a) True (b) False
33. 33.🔋 5 identical 1.5 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
34. 34.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a reed switch
35. 35.Which of these is an insulator? (a) aluminium foil (b) a dry cork (c) a steel spoon (d) a safety pin
36. 36.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
37. 37.🔁 Is the circuit closed or open if all wires are joined? (a) closed (b) open
38. 38.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) dimmer (c) brighter
39. 39.🔗 Series or parallel circuit: “a break stops every bulb”? (a) series (b) parallel
40. 40.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe

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