Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 312 · 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.True or false: a reed switch closes near a magnet. (a) True (b) False
2. 2.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
3. 3.What does a tilt switch do? (a) works only while pressed (b) closes when tipped over (c) springs back when let go (d) slides side to side
4. 4.🔘 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?
5. 5.🔘 A bulb and a cell are joined through 2 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
6. 6.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when both are ON (d) when either is ON
7. 7.True or false: a push button closes when tipped over. (a) False (b) True
8. 8.🔘 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
9. 9.🔘 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?
10. 10.True or false: a slide switch springs back when let go. (a) False (b) True
11. 11.🔘 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
12. 12.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
13. 13.🔘 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) No (b) Yes
14. 14.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
15. 15.True or false: a reed switch stays where you flip it. (a) False (b) True
16. 16.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
17. 17.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) when either is ON (d) only when both are ON
18. 18.🔘 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
19. 19.True or false: a reed switch works only while pressed. (a) False (b) True
20. 20.True or false: a toggle switch slides side to side. (a) True (b) False
21. 21.What does a push button do? (a) closes when tipped over (b) closes near a magnet (c) flips up or down (d) springs back when let go
22. 22.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) stores current (d) opens or closes the loop
23. 23.What does a toggle switch do? (a) flips up or down (b) springs back when let go (c) slides side to side (d) closes when tipped over
24. 24.True or false: a tilt switch springs back when let go. (a) False (b) True
25. 25.🔘 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) Yes (b) No
26. 26.🔘 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
27. 27.What does a reed switch do? (a) works only while pressed (b) flips up or down (c) stays where you flip it (d) closes near a magnet
28. 28.What does a push button do? (a) closes when tipped over (b) slides side to side (c) stays where you flip it (d) works only while pressed
29. 29.What does a slide switch do? (a) stays where you flip it (b) flips up or down (c) springs back when let go (d) slides side to side
30. 30.True or false: a tilt switch works only while pressed. (a) False (b) True
31. 31.True or false: a reed switch springs back when let go. (a) False (b) True
32. 32.True or false: a push button slides side to side. (a) True (b) False
33. 33.🔘 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) No (b) Yes
34. 34.🔘 A bulb and a cell are joined through 4 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
35. 35.🔘 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?
36. 36.🔘 Which kind of switch works only while pressed? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
37. 37.🔘 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
38. 38.True or false: a push button flips up or down. (a) False (b) True
39. 39.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
40. 40.🔘 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?

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