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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 331 · 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 two or more cell symbols? (a) bulb (b) switch (c) cell (d) battery
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
  4. 4.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a small empty box (c) triangle, bar and arrows (d) a circle with a cross
  5. 5.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a line lifted at a gap (c) a straight line (d) a dot where wires meet
  6. 6.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) two equal parallel lines (c) a circle with V inside (d) many long-short pairs
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) motor (c) cell (d) ammeter
  8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) cell (c) wire (d) junction
  9. 9.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  10. 10.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two equal parallel lines (c) a circle with a cross (d) two or more cell symbols
  11. 11.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) diode (c) junction (d) bulb
  13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) ammeter (d) capacitor
  14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) bulb (c) wire (d) cell
  15. 15.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle against a bar (c) a small empty box (d) triangle, bar and arrows
  16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) resistor (c) switch (d) capacitor
  17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) voltmeter (c) LED (d) capacitor
  18. 18.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a long and a short line (c) two or more cell symbols (d) a line lifted at a gap
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) resistor (c) junction (d) bulb
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) LED (c) bulb (d) ammeter
  21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) voltmeter (d) LED
  22. 22.True or false: a dot where wires meet is the symbol for an LED. (a) False (b) True
  23. 23.True or false: triangle, bar and arrows is the symbol for a bulb. (a) False (b) True
  24. 24.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
  25. 25.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
  26. 26.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) a circle with M inside (d) a dot where wires meet
  27. 27.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
  28. 28.True or false: a circle with an X in it is the symbol for an ammeter. (a) False (b) True
  29. 29.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
  30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) diode (d) switch
  31. 31.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with M inside (c) a small empty box (d) a line lifted at a gap
  32. 32.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
  33. 33.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
  34. 34.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
  35. 35.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
  36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  37. 37.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) bulb (c) capacitor (d) voltmeter
  39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) LED (c) cell (d) ammeter
  40. 40.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False

Answer key

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

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