Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 420 · 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 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?
2. 2.🔘 Which kind of switch works only while pressed? (a) a push button (b) a tilt switch (c) a toggle switch (d) a reed switch
3. 3.True or false: a push button flips up or down. (a) True (b) False
4. 4.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) opens or closes the loop (d) stores current
5. 5.True or false: a push button works only while pressed. (a) True (b) False
6. 6.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) flips up or down
7. 7.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when either is ON (d) when both are ON
8. 8.True or false: a push button springs back when let go. (a) True (b) False
9. 9.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
10. 10.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
11. 11.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
12. 12.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
13. 13.What does a reed switch do? (a) flips up or down (b) stays where you flip it (c) closes near a magnet (d) slides side to side
14. 14.🔘 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) when either is ON (d) never
15. 15.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
16. 16.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
17. 17.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a tilt switch (d) a toggle switch
18. 18.🔘 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
19. 19.🔘 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?
20. 20.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) flips up or down (d) closes when tipped over
21. 21.True or false: a slide switch slides side to side. (a) False (b) True
22. 22.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
23. 23.True or false: a slide switch closes near a magnet. (a) True (b) False
24. 24.🔘 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) No (b) Yes
25. 25.True or false: a slide switch closes when tipped over. (a) False (b) True
26. 26.🔘 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?
27. 27.🔘 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
28. 28.What does a push button do? (a) closes near a magnet (b) springs back when let go (c) stays where you flip it (d) flips up or down
29. 29.True or false: a tilt switch slides side to side. (a) False (b) True
30. 30.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a tilt switch (c) a toggle switch (d) a push button
31. 31.What does a tilt switch do? (a) flips up or down (b) slides side to side (c) closes when tipped over (d) stays where you flip it
32. 32.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a push button
33. 33.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
34. 34.🔘 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?
35. 35.What does a toggle switch do? (a) works only while pressed (b) stays where you flip it (c) closes when tipped over (d) springs back when let go
36. 36.What does a push button do? (a) flips up or down (b) closes near a magnet (c) works only while pressed (d) closes when tipped over
37. 37.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a tilt switch (c) a push button (d) a slide switch
38. 38.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
39. 39.🔘 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) No (b) Yes
40. 40.True or false: a toggle switch stays where you flip it. (a) True (b) False

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