Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 992 · 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.🔋 Does a bicycle dynamo give electricity or use electricity? (a) uses electricity (b) gives electricity
2. 2.🔁 Is the circuit closed or open if a wire is cut? (a) closed (b) open
3. 3.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
4. 4.🔗 Series or parallel circuit: “each gets the full volts”? (a) parallel (b) series
5. 5.💡 2 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 1 glow? (a) Yes (b) No
6. 6.🔦 A circuit has a new cell, a good bulb and a switch that is ON. All the wires are firmly joined. A gap in one wire is bridged by a woollen thread. Does the bulb glow? (a) Yes (b) No
7. 7.🔌 Is a steel spoon a conductor or an insulator? (a) an insulator (b) a conductor
8. 8.🔁 Is the circuit closed or open if all wires are joined? (a) closed (b) open
9. 9.🔋 Does a mobile phone give electricity or use electricity? (a) uses electricity (b) gives electricity
10. 10.💡 4 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) capacitor (c) LED (d) wire
12. 12.🔗 Series or parallel circuit: “a break stops every bulb”? (a) series (b) parallel
13. 13.⚡ A cell changes stored chemical energy into which kind of energy? (a) sound energy (b) electrical energy (c) nuclear energy (d) wind energy
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) cell (c) bulb (d) ammeter
15. 15.Which of these is safe? (a) touch a fallen wire (b) use mains for a project (c) keep drinks far away (d) touch a switch when wet
16. 16.Which of these is safe? (a) fly a kite near wires (b) dry your hands first (c) use a cable with cuts (d) throw cells in a fire
17. 17.🔌 Is a paper strip a conductor or an insulator? (a) a conductor (b) an insulator
18. 18.True or false: if the bulb is unscrewed, the circuit is closed and current flows. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) an exhaust fan (b) a buzzer (c) a mixer grinder (d) an electric toy car
20. 20.💡 In a series circuit, how many paths does the current have? (a) one (b) one for each bulb (c) two (d) none
21. 21.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) + (positive) (b) − (negative)
22. 22.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. How many bulbs glow?
23. 23.🔌 Most metals are good … (a) batteries (b) insulators (c) magnets only (d) conductors
24. 24.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) − (negative) (b) + (positive)
25. 25.🔋 3 identical 1.5 V cells are joined in series, but one of them is put in the wrong way round. What is the total voltage now (in volts)? =
26. 26.Which of these uses electricity? (a) a solar panel (b) a cell (c) an air conditioner (d) a generator
27. 27.What does a push button do? (a) closes near a magnet (b) works only while pressed (c) closes when tipped over (d) slides side to side
28. 28.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
29. 29.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) bulbs share the voltage (c) one bulb out, all go out (d) one out, the rest glow
30. 30.True or false: to stop if a part gets hot is not safe. (a) True (b) False
31. 31.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a safe circuit (c) a short circuit (d) an open circuit
32. 32.Which of these means the circuit is open? (a) the switch is ON (b) all wires are joined (c) the loop is complete (d) the bulb is unscrewed
33. 33.Which of these gives us electricity? (a) a computer (b) a mobile phone (c) an air conditioner (d) a power station
34. 34.Which of these is safe? (a) throw cells in a fire (b) use a cable with cuts (c) touch a switch when wet (d) build with an adult near
35. 35.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) battery (c) resistor (d) LED
36. 36.🔋 What is a battery? (a) a kind of bulb (b) two or more cells joined (c) a switch with a lid (d) one single wire
37. 37.🔋 Does a washing machine give electricity or use electricity? (a) uses electricity (b) gives electricity
38. 38.💡 4 identical bulbs are joined in series with an 8 V battery (ideal wires). How many volts does each bulb get? =
39. 39.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
40. 40.Which of these mainly gives out light? (a) an exhaust fan (b) a buzzer (c) a ceiling fan (d) a street light

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