Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 126 · 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) No (b) Yes
2. 2.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) changes the voltage (d) opens or closes the loop
3. 3.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
4. 4.What does a push button do? (a) springs back when let go (b) stays where you flip it (c) closes near a magnet (d) closes when tipped over
5. 5.What does a toggle switch do? (a) springs back when let go (b) stays where you flip it (c) closes near a magnet (d) slides side to side
6. 6.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
7. 7.🔘 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?
8. 8.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a tilt switch (c) a push button (d) a toggle switch
9. 9.What does a slide switch do? (a) slides side to side (b) flips up or down (c) springs back when let go (d) stays where you flip it
10. 10.True or false: a push button works only while pressed. (a) True (b) False
11. 11.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
12. 12.True or false: a reed switch works only while pressed. (a) False (b) True
13. 13.True or false: a push button closes when tipped over. (a) False (b) True
14. 14.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
15. 15.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) only when both are ON (c) never (d) when either is ON
16. 16.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) broken (d) open
17. 17.True or false: a tilt switch flips up or down. (a) True (b) False
18. 18.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) never (d) when either is ON
19. 19.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
20. 20.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
21. 21.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
22. 22.True or false: a reed switch closes near a magnet. (a) True (b) False
23. 23.True or false: a slide switch slides side to side. (a) True (b) False
24. 24.🔘 Which kind of switch works only while pressed? (a) a push button (b) a tilt switch (c) a toggle switch (d) a reed switch
25. 25.🔘 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
26. 26.True or false: a slide switch springs back when let go. (a) True (b) False
27. 27.True or false: a reed switch flips up or down. (a) True (b) False
28. 28.True or false: a toggle switch flips up or down. (a) False (b) True
29. 29.🔘 A bulb and a cell are joined through 6 switches on 6 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?
30. 30.🔘 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
31. 31.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a tilt switch (d) a toggle switch
32. 32.🔘 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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
34. 34.What does a reed switch do? (a) closes when tipped over (b) springs back when let go (c) works only while pressed (d) closes near a magnet
35. 35.What does a tilt switch do? (a) closes when tipped over (b) flips up or down (c) springs back when let go (d) works only while pressed
36. 36.🔘 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?
37. 37.🔘 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
38. 38.🔘 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
39. 39.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a tilt switch (c) a push button (d) a slide switch
40. 40.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a push button (c) a tilt switch (d) a reed switch

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