Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 889 · 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.💡 In a series circuit, how many paths does the current have? (a) none (b) one (c) one for each bulb (d) two
2. 2.🔌 Is a steel coin a conductor or an insulator? (a) a conductor (b) an insulator
3. 3.🔋 What should you do with used-up cells? (a) throw them in a fire (b) cut them open (c) give them for recycling (d) bury them in soil
4. 4.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in parallel (b) not joined (c) by Wi-Fi (d) in series
5. 5.⚡ A solar panel changes which kind of energy into electricity? (a) sound energy (b) chemical energy (c) light energy (d) wind energy
6. 6.True or false: if a cell is taken out, the circuit is closed and current flows. (a) True (b) False
7. 7.True or false: a slide switch slides side to side. (a) True (b) False
8. 8.Which of these is true of a series circuit? (a) many paths for current (b) own switch for each bulb (c) used in house wiring (d) a single current path
9. 9.True or false: to touch a switch when wet is not safe. (a) True (b) False
10. 10.True or false: a siren mainly gives out heat. (a) False (b) True
11. 11.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
12. 12.🔌 Is a copper wire a conductor or an insulator? (a) an insulator (b) a conductor
13. 13.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a plastic straw across the gap. Does the bulb glow? (a) No (b) Yes
14. 14.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is ON and B is OFF. Does the bulb glow? (a) Yes (b) No
15. 15.⚡ What does an electric toy car mainly change electricity into? (a) light (b) heat (c) sound (d) movement
16. 16.🔋 Cells joined + to − in a row (series) give … (a) a smaller voltage (b) a bigger voltage (c) no voltage (d) the same voltage
17. 17.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put an iron nail across the gap. Does the bulb glow? (a) Yes (b) No
18. 18.🔋 Does a generator give electricity or use electricity? (a) gives electricity (b) uses electricity
19. 19.🔍 Which is the odd one out? (a) stop if a part gets hot (b) take cells out after use (c) climb an electric pole (d) dry your hands first
20. 20.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is OFF and B is OFF. Does the bulb glow? (a) Yes (b) No
21. 21.Which of these is not safe? (a) stop if a part gets hot (b) dry your hands first (c) climb an electric pole (d) use small battery cells
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
23. 23.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 6 is taken out of its holder. Does bulb 5 glow? (a) Yes (b) No
24. 24.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is ON and B is ON. Does the bulb glow? (a) No (b) Yes
25. 25.What does a slide switch do? (a) closes when tipped over (b) flips up or down (c) slides side to side (d) works only while pressed
26. 26.Which of these is true of a series circuit? (a) own switch for each bulb (b) many paths for current (c) used in house wiring (d) bulbs share the voltage
27. 27.True or false: a toggle switch springs back when let go. (a) False (b) True
28. 28.True or false: a reed switch springs back when let go. (a) False (b) True
29. 29.Which of these means the circuit is open? (a) all wires are joined (b) a cell is taken out (c) the switch is ON (d) the loop is complete
30. 30.What does a reed switch do? (a) closes when tipped over (b) closes near a magnet (c) flips up or down (d) works only while pressed
31. 31.⚡ What does a buzzer mainly change electricity into? (a) sound (b) movement (c) heat (d) light
32. 32.💡 3 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. Does bulb 2 glow? (a) Yes (b) No
33. 33.What does a push button do? (a) closes near a magnet (b) springs back when let go (c) slides side to side (d) flips up or down
34. 34.🔌 Which part of a screwdriver should an electrician hold? (a) the plastic handle (b) the bare end (c) the steel shaft (d) the metal tip
35. 35.Which of these mainly makes movement? (a) a siren (b) a tube light (c) a ceiling fan (d) a doorbell
36. 36.⚡ What does an electric drill mainly change electricity into? (a) movement (b) sound (c) heat (d) light
37. 37.True or false: a glass marble is a conductor. (a) True (b) False
38. 38.Which of these is not safe? (a) fly a kite near wires (b) take cells out after use (c) stop if a part gets hot (d) build with an adult near
39. 39.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
40. 40.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a push button

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