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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 556 · 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.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) diode (c) battery (d) cell
  2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) motor (c) bulb (d) resistor
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
  4. 4.✏️ 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
  5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) ammeter (c) cell (d) motor
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) resistor (c) voltmeter (d) wire
  7. 7.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) bulb (c) junction (d) LED
  8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) motor (c) ammeter (d) battery
  9. 9.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
  10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) capacitor (d) diode
  12. 12.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) wire (c) battery (d) resistor
  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.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
  16. 16.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) wire (d) switch
  18. 18.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
  19. 19.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
  20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) resistor (c) battery (d) switch
  21. 21.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
  22. 22.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  23. 23.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
  24. 24.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a line lifted at a gap (c) a plain rectangle (d) a circle with an X in it
  25. 25.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
  26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  27. 27.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  28. 28.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a circle with A inside (c) a line lifted at a gap (d) a circle with M inside
  29. 29.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) one tall, one short bar (d) a circle with a cross
  30. 30.Which drawing is the symbol for a cell? (a) a plain rectangle (b) one tall, one short bar (c) many long-short pairs (d) a circle with M inside
  31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  32. 32.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a small empty box
  33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) diode (c) bulb (d) motor
  34. 34.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with a cross (c) a straight line (d) a plain rectangle
  35. 35.Which drawing is the symbol for a resistor? (a) a small empty box (b) a dot where wires meet (c) a long and a short line (d) two equal parallel lines
  36. 36.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
  37. 37.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with V inside
  38. 38.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  39. 39.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
  40. 40.True or false: one tall, one short bar is the symbol for a junction. (a) False (b) True

Answer key

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

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