← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 240 · 40 questions
TalentJR

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

NameDateTime takenScore ___ / 40
  1. 1.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
  2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) bulb (c) LED (d) capacitor
  3. 3.✏️ 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
  4. 4.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  5. 5.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
  7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) bulb (c) LED (d) cell
  8. 8.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) a circle with an X in it (d) a long and a short line
  9. 9.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
  10. 10.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
  11. 11.Which drawing is the symbol for a junction? (a) a straight line (b) a long and a short line (c) a plain rectangle (d) a dot where wires meet
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) LED (d) switch
  13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) resistor (c) junction (d) voltmeter
  14. 14.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with M inside (c) a circle with a cross (d) a long and a short line
  15. 15.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) many long-short pairs (c) a small empty box (d) a dot where wires meet
  16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  17. 17.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
  18. 18.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) triangle against a bar (c) a circle with an X in it (d) a long and a short line
  19. 19.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) voltmeter (d) resistor
  21. 21.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  22. 22.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
  23. 23.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) switch (c) capacitor (d) LED
  25. 25.True or false: a plain rectangle is the symbol for an ammeter. (a) False (b) True
  26. 26.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
  27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) junction (d) diode
  28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  29. 29.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) many long-short pairs (c) one tall, one short bar (d) a circle with an X in it
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) LED (c) motor (d) diode
  31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) motor (c) bulb (d) battery
  32. 32.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  33. 33.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) resistor (c) wire (d) ammeter
  35. 35.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
  36. 36.True or false: a straight line is the symbol for a bulb. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) switch (c) bulb (d) diode
  38. 38.Which drawing is the symbol for an LED? (a) a straight line (b) a circle with A inside (c) triangle, bar and arrows (d) a plain rectangle
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) wire (c) voltmeter (d) bulb
  40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) switch (c) resistor (d) voltmeter

Answer key

  1. the longer line
  2. capacitor
  3. quick and clear for all
  4. True
  5. False
  6. straight lines
  7. cell
  8. a circle with V inside
  9. False
  10. False
  11. a dot where wires meet
  12. voltmeter
  13. junction
  14. a circle with M inside
  15. many long-short pairs
  16. True
  17. False
  18. triangle against a bar
  19. True
  20. bulb
  21. True
  22. False
  23. False
  24. LED
  25. False
  26. False
  27. cell
  28. True
  29. a circle with an X in it
  30. motor
  31. battery
  32. True
  33. True
  34. ammeter
  35. False
  36. False
  37. switch
  38. triangle, bar and arrows
  39. bulb
  40. resistor

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