← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 357 · 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 circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) LED (c) diode (d) resistor
  2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) bulb (c) battery (d) ammeter
  3. 3.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) a circle with an X in it (d) two equal parallel lines
  4. 4.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) triangle against a bar (d) a circle with M inside
  5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) battery (c) bulb (d) LED
  6. 6.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
  8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) ammeter (d) junction
  9. 9.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  10. 10.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
  11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
  12. 12.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
  14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) ammeter (c) cell (d) voltmeter
  15. 15.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) resistor (c) switch (d) cell
  17. 17.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
  18. 18.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  19. 19.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  20. 20.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with an X in it (c) a small empty box (d) a circle with M inside
  21. 21.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a small empty box (c) a plain rectangle (d) triangle, bar and arrows
  22. 22.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  23. 23.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
  24. 24.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
  25. 25.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a long and a short line (c) triangle against a bar (d) a circle with an X in it
  26. 26.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) LED (c) junction (d) ammeter
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) junction (c) bulb (d) motor
  29. 29.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with a cross (c) a line lifted at a gap (d) a small empty box
  30. 30.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  31. 31.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
  32. 32.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
  33. 33.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) motor (d) cell
  35. 35.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) resistor (d) diode
  37. 37.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) two or more cell symbols (c) many long-short pairs (d) a circle with an X in it
  38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) junction (c) ammeter (d) wire
  39. 39.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) diode (c) voltmeter (d) capacitor
  40. 40.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False

Answer key

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

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