← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 320 · 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 an LED? (a) a circle with an X in it (b) a dot where wires meet (c) a small empty box (d) triangle, bar and arrows
  2. 2.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) bulb (c) LED (d) capacitor
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) resistor (c) ammeter (d) voltmeter
  5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  6. 6.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) bulb (c) resistor (d) motor
  8. 8.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a straight line (d) triangle against a bar
  9. 9.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a circle with V inside (c) a circle with an X in it (d) triangle against a bar
  10. 10.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) battery (c) LED (d) junction
  11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  12. 12.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) LED (d) switch
  14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) ammeter (d) voltmeter
  15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  16. 16.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  17. 17.True or false: a straight line is the symbol for a cell. (a) False (b) True
  18. 18.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) capacitor (c) ammeter (d) motor
  20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  22. 22.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) a line lifted at a gap (d) a long and a short line
  23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) junction (d) capacitor
  24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  25. 25.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  26. 26.Which drawing is the symbol for a cell? (a) a long and a short line (b) a line lifted at a gap (c) two equal parallel lines (d) a small empty box
  27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) LED (d) capacitor
  28. 28.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
  29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) switch (c) voltmeter (d) resistor
  31. 31.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) battery (c) motor (d) voltmeter
  33. 33.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) a circle with V inside (d) a line lifted at a gap
  34. 34.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with A inside (d) a plain rectangle
  35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) cell (c) junction (d) voltmeter
  36. 36.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
  37. 37.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a straight line (c) a circle with V inside (d) a circle with a cross
  38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) voltmeter (c) battery (d) cell
  39. 39.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True
  40. 40.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines

Answer key

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

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