← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 931 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.What does a tilt switch do? (a) closes when tipped over (b) stays where you flip it (c) flips up or down (d) closes near a magnet
  2. 2.🔍 Which is the odd one out? (a) a copper wire (b) a plastic ruler (c) a graphite rod (d) a steel spoon
  3. 3.Which of these is true of a series circuit? (a) own switch for each bulb (b) each gets the full volts (c) used in house wiring (d) a single current path
  4. 4.🔋 How many 2 V cells must be joined in series to give 12 V?
  5. 5.🔁 A bulb has two contacts. How many must be joined into the loop for it to glow? (a) it does not matter (b) both of them (c) only one (d) none
  6. 6.True or false: a mixer grinder mainly gives out heat. (a) False (b) True
  7. 7.🔌 Is a plastic straw a conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) when either is ON (d) never
  9. 9.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
  10. 10.🔋 A 12 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
  11. 11.🔍 Which is the odd one out? (a) a safety pin (b) a steel spoon (c) a brass key (d) a rubber band
  12. 12.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) + (positive) (b) − (negative)
  13. 13.Which of these is safe? (a) use mains for a project (b) keep drinks far away (c) touch a switch when wet (d) climb an electric pole
  14. 14.Which of these gives us electricity? (a) an air conditioner (b) a solar panel (c) a refrigerator (d) a washing machine
  15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) capacitor (c) battery (d) wire
  16. 16.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) stay away from pylons (b) build with an adult near (c) use mains for a project (d) take cells out after use
  18. 18.What does a push button do? (a) closes near a magnet (b) stays where you flip it (c) springs back when let go (d) flips up or down
  19. 19.True or false: to fly a kite near wires is not safe. (a) False (b) True
  20. 20.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) switch (c) junction (d) diode
  21. 21.🔋 Cells joined + to − in a row (series) give … (a) no voltage (b) the same voltage (c) a bigger voltage (d) a smaller voltage
  22. 22.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
  23. 23.🔦 A circuit has a used-up (dead) cell, a good bulb and a switch that is ON. All the wires are firmly joined. Does the bulb glow? (a) No (b) Yes
  24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  25. 25.Which of these mainly makes movement? (a) a loudspeaker (b) an exhaust fan (c) a school bell (d) a water heater
  26. 26.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  27. 27.🔋 Does a mobile phone give electricity or use electricity? (a) gives electricity (b) uses electricity
  28. 28.True or false: “each gets the full volts” is true of a series circuit. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) a room heater (b) an electric iron (c) a water heater (d) a doorbell
  30. 30.True or false: a tube light mainly gives out light. (a) False (b) True
  31. 31.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
  32. 32.Which of these means the circuit is closed? (a) a cell is taken out (b) a wire is cut (c) the bulb is unscrewed (d) all wires are joined
  33. 33.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) not joined (b) in parallel (c) by Wi-Fi (d) in series
  34. 34.⚡ A solar panel changes which kind of energy into electricity? (a) wind energy (b) light energy (c) chemical energy (d) sound energy
  35. 35.True or false: to fly kites in open fields is not safe. (a) False (b) True
  36. 36.🔘 A cell and a bulb are joined to 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
  37. 37.⚡ Which tiny particles drift along a metal wire to carry the current? (a) water drops (b) dust particles (c) electrons (d) photons
  38. 38.True or false: to take cells out after use is safe. (a) True (b) False
  39. 39.True or false: a toggle switch closes near a magnet. (a) False (b) True
  40. 40.💡 Why is house wiring done in parallel? (a) to make bulbs dim (b) to save copper only (c) so all go off together (d) each gets full voltage

Answer key

  1. closes when tipped over
  2. a plastic ruler
  3. a single current path
  4. 6
  5. both of them
  6. False
  7. an insulator
  8. when either is ON
  9. not safe
  10. 13.5
  11. a rubber band
  12. + (positive)
  13. keep drinks far away
  14. a solar panel
  15. wire
  16. a conductor
  17. use mains for a project
  18. springs back when let go
  19. True
  20. diode
  21. a bigger voltage
  22. closed
  23. No
  24. True
  25. an exhaust fan
  26. − (negative)
  27. uses electricity
  28. False
  29. a doorbell
  30. True
  31. 5
  32. all wires are joined
  33. in series
  34. light energy
  35. False
  36. Yes
  37. electrons
  38. True
  39. False
  40. each gets full voltage

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