← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 880 · 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.True or false: to fly kites in open fields is safe. (a) True (b) False
  2. 2.True or false: a steel spoon is an insulator. (a) False (b) True
  3. 3.🔘 When a switch is ON, the circuit is … (a) closed (b) open (c) broken (d) cut
  4. 4.🔍 Which is the odd one out? (a) touch a fallen wire (b) use small battery cells (c) dry your hands first (d) keep drinks far away
  5. 5.Which of these is not safe? (a) stop if a part gets hot (b) use small battery cells (c) keep drinks far away (d) touch a switch when wet
  6. 6.🔘 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  7. 7.💡 In a series circuit, how many paths does the current have? (a) one for each bulb (b) two (c) none (d) one
  8. 8.🔍 Which is the odd one out? (a) a woollen thread (b) a plastic straw (c) a ceramic cup (d) an iron nail
  9. 9.🔁 Is the circuit closed or open if a cell is taken out? (a) open (b) closed
  10. 10.What does a tilt switch do? (a) slides side to side (b) closes when tipped over (c) works only while pressed (d) stays where you flip it
  11. 11.True or false: “used in house wiring” is true of a parallel circuit. (a) False (b) True
  12. 12.💡 2 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
  13. 13.True or false: a tube light mainly gives out light. (a) True (b) False
  14. 14.True or false: on a cell, “the flat end” means the + (positive) end. (a) False (b) True
  15. 15.Which of these is an insulator? (a) a dry cork (b) a brass key (c) an iron nail (d) a safety pin
  16. 16.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  17. 17.Which of these is not safe? (a) fly kites in open fields (b) throw cells in a fire (c) keep drinks far away (d) use small battery cells
  18. 18.🔁 In an old-style bulb, which thin wire glows when current flows? (a) the base (b) the glass (c) the switch (d) the filament
  19. 19.🔍 Which is the odd one out? (a) a graphite rod (b) a steel coin (c) a cotton thread (d) aluminium foil
  20. 20.True or false: a wooden stick is an insulator. (a) True (b) False
  21. 21.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  22. 22.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a slide switch
  23. 23.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
  24. 24.🔌 Is a cotton thread a conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🔦 A circuit has a new cell, a bulb with a broken filament and a switch that is ON. All the wires are firmly joined. A gap in one wire is bridged by a copper wire. Does the bulb glow? (a) Yes (b) No
  26. 26.True or false: if the switch is OFF, the circuit is closed and current flows. (a) False (b) True
  27. 27.Which of these means the circuit is closed? (a) the switch is ON (b) a wire has come loose (c) the bulb is unscrewed (d) a cell is taken out
  28. 28.⚡ A fan changes electrical energy mainly into which kind of energy? (a) chemical energy (b) light energy (c) movement energy (d) sound energy
  29. 29.🔌 Is a copper wire a conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: to climb an electric pole is not safe. (a) False (b) True
  31. 31.True or false: “one out, the rest glow” is true of a series circuit. (a) False (b) True
  32. 32.True or false: a push button closes when tipped over. (a) True (b) False
  33. 33.True or false: a toaster mainly gives out heat. (a) False (b) True
  34. 34.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
  35. 35.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) many long-short pairs (c) a long and a short line (d) triangle, bar and arrows
  36. 36.💡 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
  37. 37.💡 4 identical bulbs are in parallel and each one takes 1.5 A. What total current (in amperes) comes from the battery? =
  38. 38.🔍 Which is the odd one out? (a) climb an electric pole (b) use small battery cells (c) stop if a part gets hot (d) fly kites in open fields
  39. 39.True or false: a steel spoon is a conductor. (a) True (b) False
  40. 40.True or false: on a cell, “usually the black wire” means the − (negative) end. (a) False (b) True

Answer key

  1. True
  2. False
  3. closed
  4. touch a fallen wire
  5. touch a switch when wet
  6. Yes
  7. one
  8. an iron nail
  9. open
  10. closes when tipped over
  11. True
  12. 6
  13. True
  14. False
  15. a dry cork
  16. True
  17. throw cells in a fire
  18. the filament
  19. a cotton thread
  20. True
  21. quick and clear for all
  22. a toggle switch
  23. safe
  24. an insulator
  25. No
  26. False
  27. the switch is ON
  28. movement energy
  29. a conductor
  30. True
  31. False
  32. False
  33. True
  34. False
  35. many long-short pairs
  36. in series
  37. 6
  38. climb an electric pole
  39. True
  40. True

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