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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 422 · 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.

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

Answer key

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

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