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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 950 · 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 M inside? (a) voltmeter (b) motor (c) ammeter (d) battery
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  3. 3.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a circle with M inside (c) a circle with V inside (d) many long-short pairs
  4. 4.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
  5. 5.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
  6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) diode (c) wire (d) LED
  8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) diode (c) cell (d) capacitor
  9. 9.Which drawing is the symbol for a motor? (a) a circle with a cross (b) one tall, one short bar (c) a small empty box (d) a circle with M inside
  10. 10.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
  11. 11.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
  13. 13.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a long and a short line (c) a small empty box (d) triangle, bar and arrows
  14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) capacitor (c) voltmeter (d) battery
  15. 15.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with M inside
  16. 16.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
  17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  18. 18.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a small empty box (c) triangle against a bar (d) a straight line
  19. 19.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  20. 20.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
  21. 21.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
  22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) resistor (c) capacitor (d) diode
  23. 23.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with A inside (c) a line lifted at a gap (d) many long-short pairs
  24. 24.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) capacitor (d) diode
  26. 26.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) switch (c) junction (d) ammeter
  28. 28.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
  29. 29.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) one tall, one short bar (d) a straight line
  30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) bulb (c) battery (d) cell
  31. 31.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
  32. 32.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  33. 33.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) LED (d) resistor
  35. 35.Which drawing is the symbol for a resistor? (a) a long and a short line (b) one tall, one short bar (c) a line lifted at a gap (d) a small empty box
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) ammeter (c) diode (d) voltmeter
  37. 37.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
  38. 38.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
  39. 39.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
  40. 40.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True

Answer key

  1. motor
  2. the longer line
  3. many long-short pairs
  4. False
  5. False
  6. True
  7. wire
  8. cell
  9. a circle with M inside
  10. False
  11. True
  12. straight lines
  13. a long and a short line
  14. battery
  15. a straight line
  16. False
  17. True
  18. a line lifted at a gap
  19. True
  20. False
  21. quick and clear for all
  22. resistor
  23. a circle with A inside
  24. True
  25. bulb
  26. False
  27. ammeter
  28. False
  29. a dot where wires meet
  30. battery
  31. False
  32. True
  33. False
  34. junction
  35. a small empty box
  36. voltmeter
  37. False
  38. False
  39. False
  40. False

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