← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 732 · 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 should you do with used-up cells? (a) throw them in a fire (b) give them for recycling (c) cut them open (d) bury them in soil
  2. 2.🔋 Does a solar panel give electricity or use electricity? (a) gives electricity (b) uses electricity
  3. 3.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
  4. 4.Which of these means the circuit is closed? (a) the bulb is unscrewed (b) a wire is cut (c) the switch is OFF (d) the loop is complete
  5. 5.💡 A battery lights 4 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) brighter (c) dimmer
  6. 6.True or false: a slide switch slides side to side. (a) True (b) False
  7. 7.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  8. 8.🔌 Most metals are good … (a) batteries (b) insulators (c) magnets only (d) conductors
  9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
  10. 10.True or false: if the switch is ON, the circuit is closed and current flows. (a) False (b) True
  11. 11.🔌 Is a glass marble a conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: an electric kettle mainly gives out heat. (a) False (b) True
  13. 13.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
  15. 15.🔌 Which metal is used for most electric wires at home? (a) rubber (b) copper (c) plastic (d) glass
  16. 16.True or false: “one bulb out, all go out” is true of a series circuit. (a) False (b) True
  17. 17.True or false: a cotton thread is a conductor. (a) False (b) True
  18. 18.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
  19. 19.🔁 Is the circuit closed or open if all wires are joined? (a) open (b) closed
  20. 20.True or false: a plastic straw is a conductor. (a) False (b) True
  21. 21.🔘 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 ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  22. 22.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
  23. 23.🔍 Which is the odd one out? (a) a traffic signal (b) a table fan (c) a tube light (d) an LED lamp
  24. 24.🔦 A circuit has a new cell, a good bulb and a switch that is ON. All the wires are firmly joined. Does the bulb glow? (a) No (b) Yes
  25. 25.🔍 Which is the odd one out? (a) use mains for a project (b) stop if a part gets hot (c) use a cable with cuts (d) fly a kite near wires
  26. 26.Which of these means the circuit is closed? (a) the switch is OFF (b) the bulb is unscrewed (c) all wires are joined (d) a wire has come loose
  27. 27.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) − (negative) (b) + (positive)
  28. 28.True or false: a table fan mainly makes movement. (a) True (b) False
  29. 29.🔌 Is a cotton thread a conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these is safe? (a) take cells out after use (b) poke things in a socket (c) throw cells in a fire (d) open a phone charger
  31. 31.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a plug top (c) a fuse or MCB (d) a long wire
  32. 32.Which of these is true of a series circuit? (a) each gets the full volts (b) many paths for current (c) bulbs share the voltage (d) one out, the rest glow
  33. 33.Which of these is an insulator? (a) a copper wire (b) a brass key (c) a wooden stick (d) an iron nail
  34. 34.What does a toggle switch do? (a) slides side to side (b) springs back when let go (c) stays where you flip it (d) works only while pressed
  35. 35.Which of these mainly makes movement? (a) a torch (b) a night lamp (c) an electric iron (d) a mixer grinder
  36. 36.Which of these mainly gives out heat? (a) a table fan (b) a loudspeaker (c) a room heater (d) an electric drill
  37. 37.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
  38. 38.🔁 What must there be for a current to flow? (a) a plastic gap (b) a broken path (c) a complete loop (d) one loose end
  39. 39.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) + (positive) (b) − (negative)
  40. 40.Which of these mainly gives out heat? (a) a torch (b) a toaster (c) a tube light (d) an electric toy car

Answer key

  1. give them for recycling
  2. gives electricity
  3. False
  4. the loop is complete
  5. dimmer
  6. True
  7. True
  8. conductors
  9. straight lines
  10. True
  11. an insulator
  12. True
  13. True
  14. the longer line
  15. copper
  16. True
  17. False
  18. quick and clear for all
  19. closed
  20. False
  21. No
  22. not safe
  23. a table fan
  24. Yes
  25. stop if a part gets hot
  26. all wires are joined
  27. − (negative)
  28. True
  29. an insulator
  30. take cells out after use
  31. a fuse or MCB
  32. bulbs share the voltage
  33. a wooden stick
  34. stays where you flip it
  35. a mixer grinder
  36. a room heater
  37. safe
  38. a complete loop
  39. + (positive)
  40. a toaster

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