Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 6 · 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.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a rubber eraser across the gap. Does the bulb glow? (a) Yes (b) No
2. 2.Which drawing is the symbol for a cell? (a) a straight line (b) many long-short pairs (c) a circle with M inside (d) one tall, one short bar
3. 3.Which of these means the circuit is closed? (a) the switch is ON (b) the bulb is unscrewed (c) a wire has come loose (d) the switch is OFF
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
5. 5.🔋 What should you do with used-up cells? (a) throw them in a fire (b) cut them open (c) bury them in soil (d) give them for recycling
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) battery (d) bulb
7. 7.Which of these means the circuit is closed? (a) the loop is complete (b) a wire is cut (c) the switch is OFF (d) a wire has come loose
8. 8.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with a cross (c) triangle against a bar (d) a straight line
9. 9.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
10. 10.Which of these is true of a parallel circuit? (a) a single current path (b) many paths for current (c) one bulb out, all go out (d) a break stops every bulb
11. 11.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
12. 12.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
13. 13.Which of these is true of a series circuit? (a) a break stops every bulb (b) one out, the rest glow (c) used in house wiring (d) own switch for each bulb
14. 14.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
15. 15.⚡ What does a rice cooker mainly change electricity into? (a) sound (b) movement (c) heat (d) light
16. 16.🔋 Does a mobile phone give electricity or use electricity? (a) gives electricity (b) uses electricity
17. 17.True or false: a street light mainly gives out heat. (a) False (b) True
18. 18.What does a toggle switch do? (a) works only while pressed (b) springs back when let go (c) closes near a magnet (d) flips up or down
19. 19.⚡ What does a traffic signal mainly change electricity into? (a) sound (b) heat (c) light (d) movement
20. 20.🔗 Series or parallel circuit: “a single current path”? (a) series (b) parallel
21. 21.🔁 Is the circuit closed or open if a wire is cut? (a) closed (b) open
22. 22.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) pour water on them (c) wait and watch (d) pull them by the hand
23. 23.Which of these is true of a series circuit? (a) one bulb out, all go out (b) many paths for current (c) one out, the rest glow (d) own switch for each bulb
24. 24.🔋 How many volts does one ordinary torch cell give? (a) 15 V (b) 230 V (c) 1.5 V (d) 0.5 V
25. 25.💡 3 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 3 is taken out of its holder. Does bulb 1 glow? (a) No (b) Yes
26. 26.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
27. 27.💡 In a series circuit, how many paths does the current have? (a) one for each bulb (b) one (c) none (d) two
28. 28.Which of these is true of a parallel circuit? (a) a single current path (b) one bulb out, all go out (c) each gets the full volts (d) bulbs share the voltage
29. 29.💡 4 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
30. 30.Which of these uses electricity? (a) a generator (b) a solar panel (c) a power station (d) an air conditioner
31. 31.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a slide switch
32. 32.💡 3 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?
33. 33.Which of these mainly gives out light? (a) an electric toy car (b) an electric kettle (c) a tube light (d) a doorbell
34. 34.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
35. 35.True or false: to touch a fallen wire is safe. (a) True (b) False
36. 36.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in series (b) not joined (c) by Wi-Fi (d) in parallel
37. 37.Which of these is true of a series circuit? (a) bulbs share the voltage (b) many paths for current (c) used in house wiring (d) own switch for each bulb
38. 38.True or false: “a break stops every bulb” is true of a series circuit. (a) True (b) False
39. 39.🔘 A bulb and a cell are joined through 3 switches on 3 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?
40. 40.Which of these mainly gives out heat? (a) an electric drill (b) a room heater (c) a street light (d) a torch

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