Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 738 · 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 push button flips up or down. (a) True (b) False
2. 2.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
3. 3.🔍 Which is the odd one out? (a) a rubber eraser (b) a safety pin (c) a glass marble (d) a plastic straw
4. 4.Which of these means the circuit is closed? (a) a wire is cut (b) the switch is ON (c) a wire has come loose (d) the switch is OFF
5. 5.Which of these is a conductor? (a) a woollen thread (b) a ceramic cup (c) a safety pin (d) a rubber eraser
6. 6.🔋 6 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)? =
7. 7.Which of these is a conductor? (a) a wooden stick (b) a steel coin (c) a woollen thread (d) a plastic straw
8. 8.What does a tilt switch do? (a) works only while pressed (b) closes when tipped over (c) springs back when let go (d) closes near a magnet
9. 9.💡 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) brighter (c) the same
10. 10.🔋 8 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)? =
11. 11.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
12. 12.True or false: “one bulb out, all go out” is true of a series circuit. (a) True (b) False
13. 13.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle against a bar (c) one tall, one short bar (d) triangle, bar and arrows
14. 14.🔋 A 3 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
15. 15.🔁 Is the circuit closed or open if the switch is OFF? (a) closed (b) open
16. 16.True or false: “each gets the full volts” is true of a series circuit. (a) False (b) True
17. 17.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a steel coin (b) an iron nail (c) a graphite rod (d) a dry cork
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
20. 20.🔁 What do we call a circuit with a break in it? (a) an open circuit (b) a series circuit (c) a full circuit (d) a closed circuit
21. 21.Which of these is true of a parallel circuit? (a) one bulb out, all go out (b) bulbs share the voltage (c) a break stops every bulb (d) own switch for each bulb
22. 22.Which of these is an insulator? (a) a brass key (b) a dry cork (c) an iron nail (d) a graphite rod
23. 23.🔦 A circuit has a new cell, a good bulb and a switch that is ON. All the wires are firmly joined. Does the bulb glow? (a) Yes (b) No
24. 24.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
25. 25.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they get dimmer (b) they all go out (c) they keep glowing (d) they explode
26. 26.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
27. 27.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) light energy (b) chemical energy (c) sound energy (d) movement energy
28. 28.True or false: a torch mainly makes sound. (a) False (b) True
29. 29.True or false: a tilt switch slides side to side. (a) True (b) False
30. 30.True or false: to open a phone charger is not safe. (a) True (b) False
31. 31.True or false: if the switch is OFF, the circuit is open and no current flows. (a) True (b) False
32. 32.🔌 Is a brass key a conductor or an insulator? (a) a conductor (b) an insulator
33. 33.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a toggle switch
34. 34.🔌 Is a plastic ruler a conductor or an insulator? (a) a conductor (b) an insulator
35. 35.🔍 Which is the odd one out? (a) a doorbell (b) a siren (c) a school bell (d) a traffic signal
36. 36.🔘 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
37. 37.Which of these mainly gives out heat? (a) an electric kettle (b) a school bell (c) a buzzer (d) an electric drill
38. 38.Which of these mainly makes movement? (a) a table fan (b) a street light (c) a buzzer (d) a traffic signal
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) junction (d) ammeter
40. 40.🔋 Does a battery give electricity or use electricity? (a) uses electricity (b) gives electricity

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