Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 324 · 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.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) makes electricity (c) changes the voltage (d) stores current
2. 2.🔘 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) No (b) Yes
3. 3.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) closed (d) cut
4. 4.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) only when both are OFF (d) never
5. 5.🔘 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 OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
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 tilt switch (c) a slide switch (d) a reed switch
8. 8.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) works only while pressed (d) flips up or down
9. 9.True or false: a slide switch slides side to side. (a) False (b) True
10. 10.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) when both are OFF (d) never
11. 11.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
12. 12.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
13. 13.True or false: a toggle switch closes when tipped over. (a) True (b) False
14. 14.🔘 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) Yes (b) No
15. 15.What does a reed switch do? (a) closes when tipped over (b) springs back when let go (c) closes near a magnet (d) works only while pressed
16. 16.True or false: a push button closes when tipped over. (a) True (b) False
17. 17.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
18. 18.🔘 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?
19. 19.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a push button (c) a reed switch (d) a slide switch
20. 20.True or false: a tilt switch springs back when let go. (a) False (b) True
21. 21.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
22. 22.🔘 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?
23. 23.True or false: a slide switch closes when tipped over. (a) False (b) True
24. 24.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a push button (c) a tilt switch (d) a toggle switch
25. 25.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a push button (c) a tilt switch (d) a reed switch
26. 26.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
27. 27.🔘 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?
28. 28.True or false: a tilt switch works only while pressed. (a) False (b) True
29. 29.🔘 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
30. 30.True or false: a slide switch stays where you flip it. (a) False (b) True
31. 31.What does a push button do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) springs back when let go
32. 32.🔘 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
33. 33.True or false: a slide switch flips up or down. (a) True (b) False
34. 34.True or false: a toggle switch slides side to side. (a) True (b) False
35. 35.True or false: a push button flips up or down. (a) False (b) True
36. 36.True or false: a reed switch stays where you flip it. (a) False (b) True
37. 37.🔘 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
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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
39. 39.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a push button (c) a toggle switch (d) a slide switch
40. 40.🔘 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

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