← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 515 · 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.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
  2. 2.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
  3. 3.🔁 Is the circuit closed or open if a wire is cut? (a) closed (b) open
  4. 4.🔍 Which is the odd one out? (a) a street light (b) a doorbell (c) a night lamp (d) an LED lamp
  5. 5.True or false: a ceramic cup is an insulator. (a) True (b) False
  6. 6.🔌 Which part of a screwdriver should an electrician hold? (a) the bare end (b) the steel shaft (c) the metal tip (d) the plastic handle
  7. 7.🔘 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) No (b) Yes
  8. 8.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is ON and B is ON. Does the bulb glow? (a) No (b) Yes
  9. 9.🔍 Which is the odd one out? (a) a water heater (b) a siren (c) a doorbell (d) a school bell
  10. 10.True or false: on a cell, “the shorter symbol line” means the + (positive) end. (a) False (b) True
  11. 11.🔌 Most metals are good … (a) magnets only (b) insulators (c) conductors (d) batteries
  12. 12.🔦 A circuit has a new cell, a good bulb and a switch that is ON. One wire has come loose from the cell. A gap in one wire is bridged by a steel spoon. Does the bulb glow? (a) Yes (b) No
  13. 13.True or false: to use a cable with cuts is safe. (a) True (b) False
  14. 14.Which of these mainly makes sound? (a) a buzzer (b) a mixer grinder (c) a street light (d) an electric toy car
  15. 15.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 1.5 V (d) 230 V
  16. 16.🔋 Does a cell give electricity or use electricity? (a) gives electricity (b) uses electricity
  17. 17.💡 Why is house wiring done in parallel? (a) to make bulbs dim (b) so all go off together (c) to save copper only (d) each gets full voltage
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) switch (c) voltmeter (d) ammeter
  19. 19.🔁 Is the circuit closed or open if the loop is complete? (a) closed (b) open
  20. 20.🔋 Identical cells side by side (in parallel) give … (a) half the voltage (b) the same voltage (c) double the voltage (d) no voltage
  21. 21.🔋 On a cell, does “usually the red wire” mean the + end or the − end? (a) − (negative) (b) + (positive)
  22. 22.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
  23. 23.🔌 Is aluminium foil a conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
  25. 25.🔘 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
  26. 26.⚡ Which tiny particles drift along a metal wire to carry the current? (a) water drops (b) dust particles (c) electrons (d) photons
  27. 27.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a glass marble across the gap. Does the bulb glow? (a) No (b) Yes
  28. 28.💡 2 identical bulbs are joined in parallel (each on its own side-by-side path) 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
  29. 29.⚡ What does a torch mainly change electricity into? (a) light (b) sound (c) heat (d) movement
  30. 30.🔌 Is a rubber band a conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a push button (c) a tilt switch (d) a toggle switch
  32. 32.🔍 Which is the odd one out? (a) touch a switch when wet (b) throw cells in a fire (c) fly a kite near wires (d) stop if a part gets hot
  33. 33.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) two equal parallel lines (c) a circle with a cross (d) a long and a short line
  34. 34.True or false: a straight line is the symbol for a junction. (a) True (b) False
  35. 35.🔋 Cells joined + to − in a row (series) give … (a) no voltage (b) the same voltage (c) a bigger voltage (d) a smaller voltage
  36. 36.🔌 Is a cotton thread a conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
  38. 38.True or false: a dry cork is an insulator. (a) True (b) False
  39. 39.Which of these is an insulator? (a) a graphite rod (b) a brass key (c) a steel coin (d) a dry cork
  40. 40.Which of these mainly gives out heat? (a) an LED lamp (b) a water heater (c) a ceiling fan (d) a school bell

Answer key

  1. safe
  2. safe
  3. open
  4. a doorbell
  5. True
  6. the plastic handle
  7. Yes
  8. Yes
  9. a water heater
  10. False
  11. conductors
  12. No
  13. False
  14. a buzzer
  15. 230 V
  16. gives electricity
  17. each gets full voltage
  18. ammeter
  19. closed
  20. the same voltage
  21. + (positive)
  22. True
  23. a conductor
  24. safe
  25. when either is ON
  26. electrons
  27. No
  28. Yes
  29. light
  30. an insulator
  31. a push button
  32. stop if a part gets hot
  33. a long and a short line
  34. False
  35. a bigger voltage
  36. an insulator
  37. closed
  38. True
  39. a dry cork
  40. a water heater

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