Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 715 · 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 power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) an inverter socket (d) a wall socket
2. 2.Which of these mainly gives out heat? (a) a tube light (b) a mixer grinder (c) a night lamp (d) a room heater
3. 3.True or false: a plastic ruler is a conductor. (a) False (b) True
4. 4.Which of these gives us electricity? (a) a refrigerator (b) a mobile phone (c) a television (d) a cell
5. 5.⚡ What does a loudspeaker mainly change electricity into? (a) heat (b) light (c) movement (d) sound
6. 6.True or false: a doorbell mainly makes sound. (a) False (b) True
7. 7.True or false: a siren mainly gives out heat. (a) True (b) False
8. 8.⚡ What do we call a flow of electric charge through a wire? (a) sound (b) a magnet (c) friction (d) electric current
9. 9.🔘 A bulb and a cell are joined through 4 switches on 4 side-by-side paths, one switch on each path (parallel). What is the smallest number of switches that must be ON to light the bulb?
10. 10.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 2 glow? (a) No (b) Yes
11. 11.🔍 Which is the odd one out? (a) a table fan (b) an exhaust fan (c) a night lamp (d) a ceiling fan
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
13. 13.True or false: “bulbs share the voltage” is true of a series circuit. (a) True (b) False
14. 14.🔌 Is an iron nail a conductor or an insulator? (a) a conductor (b) an insulator
15. 15.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with a cross (c) one tall, one short bar (d) two equal parallel lines
16. 16.🔌 Is a dry cork a conductor or an insulator? (a) an insulator (b) a conductor
17. 17.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a tilt switch (c) a toggle switch (d) a reed switch
18. 18.True or false: a buzzer mainly gives out light. (a) True (b) False
19. 19.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
20. 20.True or false: on a cell, “the end with a bump” means the − (negative) end. (a) False (b) True
21. 21.Which of these is an insulator? (a) a steel spoon (b) a safety pin (c) aluminium foil (d) a wooden stick
22. 22.True or false: to keep drinks far away is not safe. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) an iron nail (b) a plastic ruler (c) a rubber eraser (d) a dry cork
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) diode (c) capacitor (d) cell
25. 25.Which of these gives us electricity? (a) a computer (b) a washing machine (c) an air conditioner (d) a solar panel
26. 26.🔌 Which part of a screwdriver should an electrician hold? (a) the plastic handle (b) the metal tip (c) the bare end (d) the steel shaft
27. 27.What does a push button do? (a) springs back when let go (b) slides side to side (c) closes when tipped over (d) stays where you flip it
28. 28.🔗 Series or parallel circuit: “used in house wiring”? (a) parallel (b) series
29. 29.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. Does bulb 3 glow? (a) No (b) Yes
30. 30.💡 4 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
31. 31.🔌 Is a graphite rod a conductor or an insulator? (a) an insulator (b) a conductor
32. 32.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
33. 33.True or false: a line lifted at a gap is the symbol for an LED. (a) False (b) True
34. 34.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
35. 35.True or false: an electric iron mainly gives out heat. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) fly a kite near wires (b) stay away from pylons (c) keep drinks far away (d) build with an adult near
37. 37.What does a tilt switch do? (a) flips up or down (b) closes near a magnet (c) springs back when let go (d) closes when tipped over
38. 38.Which of these uses electricity? (a) a bicycle dynamo (b) a power station (c) a water pump (d) a generator
39. 39.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a push button
40. 40.Which of these mainly makes movement? (a) an electric kettle (b) an electric drill (c) a rice cooker (d) a siren

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