← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 152 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
  3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) diode (d) battery
  4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) bulb (c) resistor (d) LED
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) wire (c) bulb (d) LED
  6. 6.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
  7. 7.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a circle with a cross (d) a dot where wires meet
  8. 8.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) triangle against a bar (c) a circle with V inside (d) a circle with A inside
  9. 9.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
  10. 10.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
  11. 11.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a circle with an X in it (c) a dot where wires meet (d) a line lifted at a gap
  12. 12.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with V inside (c) a plain rectangle (d) two equal parallel lines
  13. 13.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a long and a short line (c) two equal parallel lines (d) a circle with M inside
  14. 14.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) ammeter (d) LED
  16. 16.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
  17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  18. 18.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
  19. 19.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  20. 20.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
  21. 21.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) wire (c) motor (d) diode
  23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) motor (c) bulb (d) resistor
  24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) switch (c) capacitor (d) battery
  25. 25.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) a plain rectangle (d) triangle against a bar
  26. 26.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a dot where wires meet (c) triangle against a bar (d) many long-short pairs
  27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) ammeter (d) capacitor
  28. 28.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
  29. 29.Which drawing is the symbol for an LED? (a) a circle with M inside (b) two equal parallel lines (c) a circle with an X in it (d) triangle, bar and arrows
  30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) bulb (d) motor
  31. 31.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
  32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  33. 33.Which drawing is the symbol for a cell? (a) a long and a short line (b) a dot where wires meet (c) many long-short pairs (d) a circle with A inside
  34. 34.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) LED (c) voltmeter (d) bulb
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) bulb (c) motor (d) voltmeter
  37. 37.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  38. 38.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
  39. 39.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
  40. 40.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False

Answer key

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

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