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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 511 · 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 circle with a cross? (a) diode (b) switch (c) LED (d) bulb
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) bulb (c) motor (d) junction
  3. 3.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with a cross (c) a circle with V inside (d) many long-short pairs
  4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) battery (c) resistor (d) LED
  5. 5.Which drawing is the symbol for an LED? (a) a straight line (b) many long-short pairs (c) a line lifted at a gap (d) triangle, bar and arrows
  6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  7. 7.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) motor (c) battery (d) wire
  9. 9.True or false: a small empty box is the symbol for a diode. (a) True (b) False
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) battery (c) ammeter (d) resistor
  11. 11.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) triangle against a bar (d) two or more cell symbols
  12. 12.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) wire (c) junction (d) motor
  14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) cell (c) wire (d) diode
  15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) switch (c) bulb (d) resistor
  16. 16.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
  17. 17.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) capacitor (d) switch
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) switch (c) bulb (d) cell
  20. 20.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with an X in it (c) a straight line (d) two equal parallel lines
  21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  23. 23.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a circle with V inside (c) two or more cell symbols (d) a straight line
  24. 24.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  25. 25.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) a dot where wires meet (d) a circle with A inside
  26. 26.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
  27. 27.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
  28. 28.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) two or more cell symbols (c) a circle with M inside (d) a circle with V inside
  29. 29.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) many long-short pairs (c) a long and a short line (d) a circle with A inside
  30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) wire (c) cell (d) resistor
  31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  32. 32.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  33. 33.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
  34. 34.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  35. 35.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
  36. 36.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
  37. 37.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
  38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  39. 39.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
  40. 40.Which drawing is the symbol for a cell? (a) many long-short pairs (b) one tall, one short bar (c) triangle against a bar (d) a circle with V inside

Answer key

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

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