Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 509 · 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.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
2. 2.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
3. 3.True or false: a ceramic cup is an insulator. (a) False (b) True
4. 4.⚡ A solar panel changes which kind of energy into electricity? (a) chemical energy (b) sound energy (c) wind energy (d) light energy
5. 5.Which of these uses electricity? (a) a battery (b) a bicycle dynamo (c) a water pump (d) a solar panel
6. 6.⚡ What does an electric drill mainly change electricity into? (a) movement (b) heat (c) sound (d) light
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) bulb (c) battery (d) resistor
8. 8.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. How many bulbs glow?
9. 9.🔋 8 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
10. 10.Which of these is safe? (a) climb an electric pole (b) use small battery cells (c) use mains for a project (d) use a cable with cuts
11. 11.Which of these is true of a series circuit? (a) each gets the full volts (b) many paths for current (c) one out, the rest glow (d) one bulb out, all go out
12. 12.Which drawing is the symbol for a wire? (a) a small empty box (b) a circle with M inside (c) two or more cell symbols (d) a straight line
13. 13.True or false: to throw cells in a fire is not safe. (a) False (b) True
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
15. 15.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) nobody (c) a stranger online (d) a younger child
16. 16.🔍 Which is the odd one out? (a) a torch (b) a doorbell (c) a school bell (d) a loudspeaker
17. 17.Which of these is true of a parallel circuit? (a) used in house wiring (b) a break stops every bulb (c) bulbs share the voltage (d) a single current path
18. 18.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a push button (d) a toggle switch
19. 19.⚡ What does a toaster mainly change electricity into? (a) movement (b) heat (c) sound (d) light
20. 20.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
21. 21.True or false: “one out, the rest glow” is true of a series circuit. (a) False (b) True
22. 22.True or false: a glass marble is an insulator. (a) False (b) True
23. 23.🔘 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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
24. 24.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
25. 25.What does a slide switch do? (a) works only while pressed (b) springs back when let go (c) closes when tipped over (d) slides side to side
26. 26.🔁 Is the circuit closed or open if all wires are joined? (a) closed (b) open
27. 27.Which of these mainly gives out light? (a) an electric toy car (b) a torch (c) a buzzer (d) an electric iron
28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
29. 29.True or false: to build with an adult near is safe. (a) True (b) False
30. 30.True or false: a reed switch springs back when let go. (a) True (b) False
31. 31.True or false: “a break stops every bulb” is true of a parallel circuit. (a) True (b) False
32. 32.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
33. 33.What does a push button do? (a) closes near a magnet (b) springs back when let go (c) flips up or down (d) slides side to side
34. 34.🔍 Which is the odd one out? (a) a steel spoon (b) a safety pin (c) a rubber band (d) a steel coin
35. 35.🔋 Cells joined + to − in a row (series) give … (a) the same voltage (b) a smaller voltage (c) no voltage (d) a bigger voltage
36. 36.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
37. 37.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a wall socket (c) a mains extension board (d) a small battery pack
38. 38.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
39. 39.🔋 4 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)? =
40. 40.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)

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