Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 805 · 40 questions

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.

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

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