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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 380 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
  2. 2.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) motor (d) bulb
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
  5. 5.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) motor (c) wire (d) bulb
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
  8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) motor (c) battery (d) switch
  9. 9.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) one tall, one short bar (d) a circle with an X in it
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) wire (c) bulb (d) resistor
  11. 11.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a line lifted at a gap (c) two or more cell symbols (d) two equal parallel lines
  12. 12.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
  13. 13.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a small empty box (c) a dot where wires meet (d) two or more cell symbols
  14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) capacitor (c) battery (d) ammeter
  15. 15.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) cell (c) motor (d) ammeter
  17. 17.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) cell (c) motor (d) battery
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) battery (c) junction (d) bulb
  20. 20.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a circle with V inside (c) two equal parallel lines (d) a long and a short line
  21. 21.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with an X in it (c) a dot where wires meet (d) a small empty box
  22. 22.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
  23. 23.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
  24. 24.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) diode (d) wire
  26. 26.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) triangle against a bar (c) a circle with M inside (d) a circle with a cross
  27. 27.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with an X in it (c) a long and a short line (d) a straight line
  28. 28.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a circle with M inside (c) triangle against a bar (d) many long-short pairs
  29. 29.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
  30. 30.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a small empty box (c) a long and a short line (d) triangle, bar and arrows
  31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) LED (c) ammeter (d) cell
  32. 32.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  33. 33.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
  34. 34.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
  35. 35.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
  36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) wire (d) battery
  37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) battery (c) LED (d) diode
  38. 38.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
  39. 39.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
  40. 40.True or false: a small empty box is the symbol for a switch. (a) True (b) False

Answer key

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

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