Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 74 · 40 questions

Remember (All for series, any for parallel): Series switches (one path): the bulb glows only if ALL are ON. Parallel switches (side-by-side paths): the bulb glows if ANY one is ON. Mixed: work out each path, then ask if there is at least one complete path.

1. 1.🔘 A bulb and a cell are joined through 6 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
2. 2.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is OFF and B is ON. Does the bulb glow? (a) Yes (b) No
3. 3.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
4. 4.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) opens or closes the loop (d) changes the voltage
5. 5.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
6. 6.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is ON, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
7. 7.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is OFF, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
8. 8.True or false: a toggle switch works only while pressed. (a) False (b) True
9. 9.True or false: a slide switch slides side to side. (a) False (b) True
10. 10.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is ON, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
11. 11.True or false: a toggle switch flips up or down. (a) True (b) False
12. 12.🔘 A bulb and a cell are joined through 2 switches on 2 side-by-side paths, one switch on each path (parallel). What is the smallest number of switches that must be ON to light the bulb?
13. 13.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is OFF and B is ON. Does the bulb glow? (a) Yes (b) No
14. 14.What does a toggle switch do? (a) slides side to side (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
15. 15.🔘 Which kind of switch slides side to side? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
16. 16.True or false: a toggle switch slides side to side. (a) False (b) True
17. 17.True or false: a tilt switch flips up or down. (a) True (b) False
18. 18.True or false: a reed switch works only while pressed. (a) False (b) True
19. 19.True or false: a slide switch stays where you flip it. (a) False (b) True
20. 20.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
21. 21.What does a slide switch do? (a) flips up or down (b) springs back when let go (c) closes when tipped over (d) slides side to side
22. 22.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
23. 23.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
24. 24.True or false: a reed switch stays where you flip it. (a) False (b) True
25. 25.True or false: a push button works only while pressed. (a) False (b) True
26. 26.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a tilt switch (c) a toggle switch (d) a reed switch
27. 27.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
28. 28.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
29. 29.🔘 A cell and a bulb are joined to 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is OFF, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
30. 30.🔘 Which kind of switch springs back when let go? (a) a push button (b) a toggle switch (c) a reed switch (d) a slide switch
31. 31.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
32. 32.What does a reed switch do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) works only while pressed
33. 33.🔘 A cell and a bulb are joined to 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
34. 34.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is ON, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
35. 35.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) closes near a magnet (d) flips up or down
36. 36.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
37. 37.True or false: a toggle switch closes when tipped over. (a) True (b) False
38. 38.True or false: a tilt switch closes when tipped over. (a) False (b) True
39. 39.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a toggle switch (c) a slide switch (d) a tilt switch
40. 40.True or false: a push button flips up or down. (a) False (b) True

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