← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 255 · 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.Which of these means the circuit is open? (a) the loop is complete (b) the bulb is unscrewed (c) all wires are joined (d) the switch is ON
  2. 2.🔍 Which is the odd one out? (a) stay away from pylons (b) climb an electric pole (c) take cells out after use (d) keep drinks far away
  3. 3.🔁 Is the circuit closed or open if the switch is ON? (a) open (b) closed
  4. 4.⚡ What does a traffic signal mainly change electricity into? (a) movement (b) heat (c) light (d) sound
  5. 5.True or false: a push button closes near a magnet. (a) True (b) False
  6. 6.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
  7. 7.True or false: “many paths for current” is true of a series circuit. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) a copper wire (b) a steel spoon (c) a metal paper clip (d) a rubber band
  9. 9.True or false: on a cell, “usually the black wire” means the + (positive) end. (a) True (b) False
  10. 10.🔌 Is a graphite rod a conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: to fly a kite near wires is safe. (a) False (b) True
  12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  13. 13.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
  14. 14.🔌 A gap of dry air between two wires acts as … (a) an insulator (b) a conductor (c) a switch that is ON (d) a cell
  15. 15.🔋 What is a battery? (a) a switch with a lid (b) two or more cells joined (c) a kind of bulb (d) one single wire
  16. 16.🔍 Which is the odd one out? (a) a dry cork (b) an iron nail (c) a rubber eraser (d) a ceramic cup
  17. 17.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) makes electricity (c) stores current (d) changes the voltage
  18. 18.True or false: if all wires are joined, the circuit is open and no current flows. (a) True (b) False
  19. 19.True or false: to poke things in a socket is not safe. (a) True (b) False
  20. 20.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
  21. 21.True or false: an electric kettle mainly gives out light. (a) False (b) True
  22. 22.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
  23. 23.Which of these is a conductor? (a) a dry cork (b) a cotton thread (c) an iron nail (d) a ceramic cup
  24. 24.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these mainly makes sound? (a) a toaster (b) an electric toy car (c) an electric kettle (d) a siren
  26. 26.🔌 Is a copper wire a conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these is true of a parallel circuit? (a) bulbs share the voltage (b) own switch for each bulb (c) a single current path (d) one bulb out, all go out
  28. 28.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
  29. 29.🔋 8 identical 1.5 V cells are joined in series, but one of them is put in the wrong way round. What is the total voltage now (in volts)? =
  30. 30.🔌 Is a rubber band a conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these is an insulator? (a) a graphite rod (b) a plastic ruler (c) a copper wire (d) a steel spoon
  32. 32.⚡ A cell changes stored chemical energy into which kind of energy? (a) wind energy (b) sound energy (c) electrical energy (d) nuclear energy
  33. 33.Which of these is not safe? (a) use small battery cells (b) stay away from pylons (c) poke things in a socket (d) dry your hands first
  34. 34.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a fuse or MCB (c) a long wire (d) a plug top
  35. 35.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water makes it cold (d) water carries current
  36. 36.True or false: a wooden stick is an insulator. (a) False (b) True
  37. 37.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 4 of the switches are OFF and the rest are ON. How many bulbs glow?
  38. 38.🔦 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
  39. 39.What does a push button do? (a) slides side to side (b) closes when tipped over (c) works only while pressed (d) closes near a magnet
  40. 40.True or false: to throw cells in a fire is safe. (a) False (b) True

Answer key

  1. the bulb is unscrewed
  2. climb an electric pole
  3. closed
  4. light
  5. False
  6. a push button
  7. False
  8. a rubber band
  9. False
  10. a conductor
  11. False
  12. straight lines
  13. the longer line
  14. an insulator
  15. two or more cells joined
  16. an iron nail
  17. opens or closes the loop
  18. False
  19. True
  20. False
  21. False
  22. True
  23. an iron nail
  24. a conductor
  25. a siren
  26. a conductor
  27. own switch for each bulb
  28. safe
  29. 9
  30. an insulator
  31. a plastic ruler
  32. electrical energy
  33. poke things in a socket
  34. a fuse or MCB
  35. water carries current
  36. True
  37. 2
  38. Yes
  39. works only while pressed
  40. False

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