Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 335 · 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 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?
2. 2.True or false: a push button works only while pressed. (a) True (b) False
3. 3.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
4. 4.🔘 A bulb and a cell are joined through 3 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
5. 5.True or false: a reed switch works only while pressed. (a) True (b) False
6. 6.🔘 When a switch is ON, the circuit is … (a) closed (b) open (c) cut (d) broken
7. 7.🔘 A bulb and a cell are joined through 5 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
8. 8.What does a tilt switch do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) closes near a magnet
9. 9.What does a toggle switch do? (a) closes when tipped over (b) closes near a magnet (c) springs back when let go (d) stays where you flip it
10. 10.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) never (c) when either is ON (d) only when both are OFF
11. 11.True or false: a reed switch closes near a magnet. (a) True (b) False
12. 12.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
13. 13.🔘 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) No (b) Yes
14. 14.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a push button (c) a slide switch (d) a reed switch
15. 15.What does a push button do? (a) flips up or down (b) closes when tipped over (c) springs back when let go (d) closes near a magnet
16. 16.🔘 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 ON, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
17. 17.🔘 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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
18. 18.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
19. 19.What does a slide switch do? (a) slides side to side (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
20. 20.🔘 A bulb and a cell are joined through 3 switches on 3 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?
21. 21.What does a toggle switch do? (a) closes near a magnet (b) flips up or down (c) works only while pressed (d) springs back when let go
22. 22.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a slide switch
23. 23.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a toggle switch
24. 24.🔘 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
25. 25.🔘 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) No (b) Yes
26. 26.True or false: a tilt switch closes when tipped over. (a) True (b) False
27. 27.🔘 A bulb and a cell are joined through 4 switches on 4 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?
28. 28.What does a push button do? (a) flips up or down (b) closes when tipped over (c) stays where you flip it (d) works only while pressed
29. 29.True or false: a toggle switch springs back when let go. (a) True (b) False
30. 30.🔘 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?
31. 31.True or false: a toggle switch stays where you flip it. (a) True (b) False
32. 32.🔘 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 ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
33. 33.True or false: a slide switch flips up or down. (a) True (b) False
34. 34.True or false: a slide switch springs back when let go. (a) True (b) False
35. 35.True or false: a slide switch closes near a magnet. (a) False (b) True
36. 36.🔘 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
37. 37.True or false: a reed switch slides side to side. (a) True (b) False
38. 38.True or false: a toggle switch flips up or down. (a) False (b) True
39. 39.True or false: a push button closes near a magnet. (a) True (b) False
40. 40.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a push button (c) a toggle switch (d) a slide switch

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