← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 371 · 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.

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

Answer key

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

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids