← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 742 · 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.🔋 Identical cells side by side (in parallel) give … (a) double the voltage (b) the same voltage (c) no voltage (d) half the voltage
  2. 2.🔗 Series or parallel circuit: “each gets the full volts”? (a) series (b) parallel
  3. 3.Which of these mainly gives out heat? (a) an electric drill (b) a siren (c) a rice cooker (d) a buzzer
  4. 4.🔌 Is a plastic ruler a conductor or an insulator? (a) an insulator (b) a conductor
  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) brighter (b) the same (c) dimmer
  6. 6.Which of these is an insulator? (a) aluminium foil (b) a wooden stick (c) an iron nail (d) a steel spoon
  7. 7.True or false: a toggle switch springs back when let go. (a) True (b) False
  8. 8.Which of these is a conductor? (a) a rubber eraser (b) a paper strip (c) a steel coin (d) a ceramic cup
  9. 9.🔋 Does a wind turbine give electricity or use electricity? (a) uses electricity (b) gives electricity
  10. 10.Which of these means the circuit is closed? (a) all wires are joined (b) the bulb is unscrewed (c) a wire is cut (d) the switch is OFF
  11. 11.True or false: to throw cells in a fire is safe. (a) False (b) True
  12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  13. 13.💡 A battery lights 3 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
  14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
  15. 15.What does a push button do? (a) closes when tipped over (b) flips up or down (c) works only while pressed (d) closes near a magnet
  16. 16.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  17. 17.Which of these is true of a series circuit? (a) a break stops every bulb (b) each gets the full volts (c) own switch for each bulb (d) used in house wiring
  18. 18.Which of these is true of a series circuit? (a) a single current path (b) each gets the full volts (c) own switch for each bulb (d) many paths for current
  19. 19.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) + (positive) (b) − (negative)
  20. 20.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)
  21. 21.🔦 A circuit has a new cell, a good bulb and a switch that is ON. All the wires are firmly joined. A gap in one wire is bridged by a rubber band. Does the bulb glow? (a) No (b) Yes
  22. 22.Which of these is an insulator? (a) a steel coin (b) a copper wire (c) a dry cork (d) a brass key
  23. 23.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a small empty box (c) two equal parallel lines (d) triangle, bar and arrows
  24. 24.🔁 Is the circuit closed or open if the bulb is unscrewed? (a) open (b) closed
  25. 25.⚡ What does a torch mainly change electricity into? (a) heat (b) movement (c) sound (d) light
  26. 26.True or false: to build with an adult near is safe. (a) False (b) True
  27. 27.💡 In a series circuit, how many paths does the current have? (a) one for each bulb (b) two (c) one (d) none
  28. 28.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
  29. 29.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
  30. 30.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
  31. 31.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
  32. 32.Which of these is safe? (a) poke things in a socket (b) open a phone charger (c) use small battery cells (d) use mains for a project
  33. 33.💡 A battery lights 5 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) dimmer (c) the same
  34. 34.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
  35. 35.💡 3 identical bulbs are joined in parallel across a 3 V battery (ideal wires). How many volts does each bulb get? =
  36. 36.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  37. 37.⚡ What does an electric iron mainly change electricity into? (a) light (b) heat (c) movement (d) sound
  38. 38.🔌 Which part of a screwdriver should an electrician hold? (a) the metal tip (b) the bare end (c) the steel shaft (d) the plastic handle
  39. 39.🔘 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔁 Is the circuit closed or open if a wire has come loose? (a) closed (b) open

Answer key

  1. the same voltage
  2. parallel
  3. a rice cooker
  4. an insulator
  5. dimmer
  6. a wooden stick
  7. False
  8. a steel coin
  9. gives electricity
  10. all wires are joined
  11. False
  12. True
  13. dimmer
  14. straight lines
  15. works only while pressed
  16. − (negative)
  17. a break stops every bulb
  18. a single current path
  19. + (positive)
  20. − (negative)
  21. No
  22. a dry cork
  23. two equal parallel lines
  24. open
  25. light
  26. True
  27. one
  28. not safe
  29. False
  30. False
  31. the longer line
  32. use small battery cells
  33. dimmer
  34. safe
  35. 3
  36. a push button
  37. heat
  38. the plastic handle
  39. Yes
  40. open

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