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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 85 · 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 V inside? (a) bulb (b) resistor (c) cell (d) voltmeter
  2. 2.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
  4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) switch (c) motor (d) resistor
  5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  6. 6.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
  7. 7.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
  8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
  9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  10. 10.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a plain rectangle (c) a circle with V inside (d) a straight line
  11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) ammeter (c) motor (d) voltmeter
  12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) diode (d) LED
  13. 13.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) wire (c) battery (d) resistor
  15. 15.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a dot where wires meet (c) two equal parallel lines (d) one tall, one short bar
  16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) junction (c) voltmeter (d) capacitor
  17. 17.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  18. 18.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) one tall, one short bar (c) a long and a short line (d) triangle against a bar
  19. 19.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with M inside (c) a plain rectangle (d) many long-short pairs
  20. 20.True or false: a straight line is the symbol for a battery. (a) False (b) True
  21. 21.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with an X in it (c) a circle with A inside (d) a plain rectangle
  22. 22.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) bulb (c) resistor (d) battery
  23. 23.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) capacitor (c) diode (d) switch
  25. 25.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) motor (d) cell
  26. 26.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with M inside (c) a small empty box (d) triangle against a bar
  27. 27.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) many long-short pairs (c) a dot where wires meet (d) a circle with an X in it
  28. 28.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
  29. 29.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  30. 30.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
  31. 31.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) triangle, bar and arrows (d) a line lifted at a gap
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) diode (c) junction (d) bulb
  33. 33.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
  34. 34.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
  35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  36. 36.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
  37. 37.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
  38. 38.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a plain rectangle (c) a circle with an X in it (d) a dot where wires meet
  39. 39.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) diode (c) motor (d) ammeter

Answer key

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

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