Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 72 · 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 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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
2. 2.🔘 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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
3. 3.True or false: a tilt switch works only while pressed. (a) True (b) False
4. 4.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
5. 5.What does a reed switch do? (a) stays where you flip it (b) closes near a magnet (c) closes when tipped over (d) slides side to side
6. 6.True or false: a toggle switch works only while pressed. (a) False (b) True
7. 7.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a slide switch (c) a reed switch (d) a push button
8. 8.🔘 A bulb and a cell are joined through 5 switches on 5 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?
9. 9.🔘 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 ON and B is ON. Does the bulb glow? (a) Yes (b) No
10. 10.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a tilt switch (d) a reed switch
11. 11.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
12. 12.What does a push button do? (a) closes when tipped over (b) springs back when let go (c) flips up or down (d) slides side to side
13. 13.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a push button (c) a toggle switch (d) a reed switch
14. 14.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is ON and B is OFF. Does the bulb glow? (a) Yes (b) No
15. 15.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) makes electricity (d) opens or closes the loop
16. 16.🔘 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
17. 17.True or false: a slide switch closes near a magnet. (a) False (b) True
18. 18.What does a push button do? (a) works only while pressed (b) stays where you flip it (c) closes near a magnet (d) flips up or down
19. 19.True or false: a reed switch springs back when let go. (a) False (b) True
20. 20.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) closed (d) open
21. 21.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) never (d) when either is ON
22. 22.🔘 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?
23. 23.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
24. 24.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
25. 25.What does a toggle switch do? (a) stays where you flip it (b) closes near a magnet (c) springs back when let go (d) slides side to side
26. 26.True or false: a toggle switch flips up or down. (a) False (b) True
27. 27.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
28. 28.True or false: a tilt switch flips up or down. (a) False (b) True
29. 29.True or false: a push button springs back when let go. (a) False (b) True
30. 30.What does a toggle switch do? (a) flips up or down (b) slides side to side (c) closes near a magnet (d) closes when tipped over
31. 31.🔘 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) No (b) Yes
32. 32.🔘 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 ON, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
33. 33.🔘 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?
34. 34.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is ON and B is ON. Does the bulb glow? (a) Yes (b) No
35. 35.True or false: a push button flips up or down. (a) False (b) True
36. 36.True or false: a slide switch springs back when let go. (a) True (b) False
37. 37.What does a tilt switch do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) stays where you flip it
38. 38.🔘 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) No (b) Yes
39. 39.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a tilt switch (c) a push button (d) a reed switch
40. 40.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch

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