Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 720 · 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.Which of these is a conductor? (a) a plastic ruler (b) a metal paper clip (c) a rubber eraser (d) a dry cork
2. 2.⚡ What does a rice cooker mainly change electricity into? (a) heat (b) light (c) movement (d) sound
3. 3.What does a slide switch do? (a) slides side to side (b) works only while pressed (c) springs back when let go (d) flips up or down
4. 4.🔍 Which is the odd one out? (a) poke things in a socket (b) use a cable with cuts (c) fly a kite near wires (d) fly kites in open fields
5. 5.True or false: a small empty box is the symbol for a motor. (a) True (b) False
6. 6.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
7. 7.Which of these is true of a series circuit? (a) used in house wiring (b) own switch for each bulb (c) one bulb out, all go out (d) one out, the rest glow
8. 8.Which of these mainly makes movement? (a) a mixer grinder (b) an electric kettle (c) a traffic signal (d) a school bell
9. 9.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch
10. 10.🔗 Series or parallel circuit: “a single current path”? (a) series (b) parallel
11. 11.🔋 Does a generator give electricity or use electricity? (a) uses electricity (b) gives electricity
12. 12.🔋 How many volts does one ordinary torch cell give? (a) 1.5 V (b) 230 V (c) 15 V (d) 0.5 V
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) battery (c) bulb (d) voltmeter
14. 14.💡 5 identical bulbs are in parallel and each one takes 0.5 A. What total current (in amperes) comes from the battery? =
15. 15.🔍 Which is the odd one out? (a) a traffic signal (b) a ceiling fan (c) an electric toy car (d) an exhaust fan
16. 16.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
17. 17.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a reed switch
18. 18.🔁 A bulb has two contacts. How many must be joined into the loop for it to glow? (a) it does not matter (b) none (c) both of them (d) only one
19. 19.💡 In a series circuit, how many paths does the current have? (a) two (b) one for each bulb (c) none (d) one
20. 20.True or false: “own switch for each bulb” is true of a parallel circuit. (a) True (b) False
21. 21.🔌 Which part of a screwdriver should an electrician hold? (a) the steel shaft (b) the plastic handle (c) the metal tip (d) the bare end
22. 22.Which of these is an insulator? (a) a steel coin (b) a graphite rod (c) a cotton thread (d) a brass key
23. 23.🔍 Which is the odd one out? (a) a glass marble (b) a paper strip (c) a safety pin (d) a dry cork
24. 24.🔋 Does a water pump give electricity or use electricity? (a) gives electricity (b) uses electricity
25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
26. 26.💡 4 identical bulbs are joined in parallel (each on its own side-by-side path) with a battery and a closed switch on the main wire. Bulbs 1 and 3 are taken out of their holders. How many bulbs glow?
27. 27.Which of these mainly gives out heat? (a) an LED lamp (b) an electric kettle (c) a doorbell (d) a torch
28. 28.💡 Why is house wiring done in parallel? (a) to save copper only (b) so all go off together (c) to make bulbs dim (d) each gets full voltage
29. 29.True or false: on a cell, “the shorter symbol line” means the − (negative) end. (a) False (b) True
30. 30.💡 A battery lights 4 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) dimmer (b) the same (c) brighter
31. 31.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) − (negative) (b) + (positive)
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) junction (d) diode
33. 33.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
34. 34.True or false: if a wire is cut, the circuit is open and no current flows. (a) False (b) True
35. 35.🔁 Is the circuit closed or open if a wire has come loose? (a) open (b) closed
36. 36.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) parallel (b) series
37. 37.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) one tall, one short bar (c) two equal parallel lines (d) a circle with V inside
38. 38.🔍 Which is the odd one out? (a) a buzzer (b) a loudspeaker (c) a siren (d) a torch
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) LED (d) motor
40. 40.🔌 Is a rubber eraser a conductor or an insulator? (a) a conductor (b) an insulator

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids