← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 291 · 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.Which drawing is the symbol for a junction? (a) a plain rectangle (b) triangle against a bar (c) two or more cell symbols (d) a dot where wires meet
  2. 2.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) voltmeter (c) wire (d) LED
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) switch (c) bulb (d) motor
  5. 5.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) resistor (c) wire (d) capacitor
  6. 6.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  7. 7.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with M inside (c) a straight line (d) two or more cell symbols
  8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
  9. 9.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  10. 10.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
  11. 11.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) bulb (d) motor
  13. 13.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with M inside (c) a line lifted at a gap (d) one tall, one short bar
  14. 14.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
  15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  16. 16.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) a circle with M inside (d) a small empty box
  17. 17.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
  18. 18.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
  19. 19.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with a cross (c) a plain rectangle (d) two or more cell symbols
  20. 20.True or false: a straight line is the symbol for a battery. (a) True (b) False
  21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) voltmeter (c) cell (d) capacitor
  22. 22.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with A inside (c) a line lifted at a gap (d) triangle against a bar
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) junction (d) resistor
  24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) bulb (c) switch (d) resistor
  25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
  26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  27. 27.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  28. 28.True or false: a straight line is the symbol for a wire. (a) True (b) False
  29. 29.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
  30. 30.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
  31. 31.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) many long-short pairs (c) two or more cell symbols (d) a circle with an X in it
  32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) battery (d) ammeter
  33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) junction (d) wire
  34. 34.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
  35. 35.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) a circle with M inside (d) one tall, one short bar
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) battery (c) cell (d) bulb
  37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) bulb (c) junction (d) resistor
  38. 38.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  39. 39.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
  40. 40.Which drawing is the symbol for an LED? (a) a circle with A inside (b) two equal parallel lines (c) triangle, bar and arrows (d) a long and a short line

Answer key

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

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