← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 717 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
  2. 2.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) bulb (c) voltmeter (d) resistor
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
  4. 4.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with M inside
  5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) bulb (d) switch
  6. 6.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  7. 7.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
  8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) cell (d) resistor
  9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  10. 10.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
  11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) ammeter (c) LED (d) capacitor
  12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) switch (d) battery
  13. 13.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  14. 14.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
  15. 15.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) two equal parallel lines (c) triangle, bar and arrows (d) a circle with V inside
  16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) cell (d) junction
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) voltmeter (c) bulb (d) wire
  19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with M inside
  20. 20.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
  21. 21.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a long and a short line (c) a circle with an X in it (d) a circle with M inside
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) capacitor (d) battery
  23. 23.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
  24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  25. 25.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  26. 26.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a plain rectangle (c) triangle against a bar (d) a small empty box
  27. 27.True or false: a straight line is the symbol for a junction. (a) False (b) True
  28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  29. 29.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  30. 30.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with V inside (c) a line lifted at a gap (d) a plain rectangle
  31. 31.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
  32. 32.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
  33. 33.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with V inside (c) a line lifted at a gap (d) a circle with a cross
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) switch (c) motor (d) capacitor
  35. 35.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  36. 36.Which drawing is the symbol for a capacitor? (a) a straight line (b) two or more cell symbols (c) two equal parallel lines (d) a plain rectangle
  37. 37.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with A inside (c) a straight line (d) many long-short pairs
  38. 38.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
  39. 39.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  40. 40.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False

Answer key

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

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