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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 826 · 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 triangle, bar and arrows? (a) bulb (b) LED (c) wire (d) battery
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
  3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) switch (c) bulb (d) junction
  4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) battery (c) LED (d) resistor
  5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) junction (c) wire (d) switch
  6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) motor (d) ammeter
  7. 7.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
  8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
  9. 9.Which drawing is the symbol for a switch? (a) a long and a short line (b) a circle with a cross (c) a line lifted at a gap (d) one tall, one short bar
  10. 10.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
  11. 11.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) two equal parallel lines (d) triangle, bar and arrows
  12. 12.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) a circle with A inside (d) many long-short pairs
  13. 13.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a straight line (c) a long and a short line (d) triangle, bar and arrows
  14. 14.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  15. 15.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) battery (d) junction
  17. 17.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) LED (c) bulb (d) battery
  19. 19.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 long and a short line
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) LED (c) bulb (d) switch
  21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) LED (d) switch
  22. 22.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a circle with a cross (c) many long-short pairs (d) a circle with M inside
  23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) junction (c) diode (d) battery
  24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) LED (c) wire (d) bulb
  25. 25.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a circle with a cross (c) a straight line (d) a small empty box
  26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  27. 27.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
  28. 28.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
  29. 29.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
  30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  31. 31.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) wire (c) cell (d) bulb
  33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) junction (d) resistor
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) cell (c) motor (d) capacitor
  35. 35.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
  36. 36.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
  37. 37.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) two or more cell symbols (c) a circle with a cross (d) a line lifted at a gap
  38. 38.True or false: a straight line is the symbol for a wire. (a) True (b) False
  39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False

Answer key

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

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