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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 200 · 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) bulb (b) motor (c) switch (d) resistor
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
  3. 3.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
  4. 4.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a small empty box (c) a circle with M inside (d) one tall, one short bar
  5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) motor (c) junction (d) bulb
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) switch (c) motor (d) bulb
  7. 7.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
  8. 8.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
  9. 9.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  10. 10.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  11. 11.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) two or more cell symbols (c) a dot where wires meet (d) a long and a short line
  12. 12.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) battery (c) cell (d) resistor
  14. 14.True or false: a small empty box is the symbol for a motor. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) ammeter (c) resistor (d) LED
  16. 16.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle, bar and arrows (c) triangle against a bar (d) many long-short pairs
  17. 17.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) one tall, one short bar (c) a straight line (d) two equal parallel lines
  18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) ammeter (c) cell (d) LED
  19. 19.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
  20. 20.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  21. 21.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) capacitor (c) switch (d) cell
  23. 23.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) motor (c) cell (d) voltmeter
  25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) bulb (c) motor (d) junction
  26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) voltmeter (c) capacitor (d) LED
  27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) cell (c) LED (d) diode
  28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) ammeter (c) wire (d) battery
  29. 29.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) a plain rectangle (d) many long-short pairs
  30. 30.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
  31. 31.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a plain rectangle (c) a circle with A inside (d) triangle against a bar
  32. 32.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  33. 33.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
  34. 34.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a line lifted at a gap (c) many long-short pairs (d) one tall, one short bar
  35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  36. 36.✏️ 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
  37. 37.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a circle with V inside (c) a circle with M inside (d) two or more cell symbols
  38. 38.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) LED (d) motor
  40. 40.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False

Answer key

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

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