Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 881 · 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.🔘 Which kind of switch springs back when let go? (a) a push button (b) a toggle switch (c) a reed switch (d) a tilt switch
2. 2.🔘 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?
3. 3.What does a push button do? (a) flips up or down (b) stays where you flip it (c) works only while pressed (d) slides side to side
4. 4.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
5. 5.True or false: a push button springs back when let go. (a) False (b) True
6. 6.🔘 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
7. 7.🔘 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?
8. 8.True or false: a reed switch springs back when let go. (a) False (b) True
9. 9.True or false: a slide switch slides side to side. (a) True (b) False
10. 10.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) never (d) when both are OFF
11. 11.True or false: a push button works only while pressed. (a) False (b) True
12. 12.What does a push button do? (a) flips up or down (b) closes near a magnet (c) springs back when let go (d) closes when tipped over
13. 13.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
14. 14.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a reed switch
15. 15.🔘 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
16. 16.🔘 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
17. 17.True or false: a tilt switch closes when tipped over. (a) False (b) True
18. 18.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a push button (c) a toggle switch (d) a slide switch
19. 19.True or false: a tilt switch stays where you flip it. (a) False (b) True
20. 20.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) slides side to side (d) works only while pressed
21. 21.🔘 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
22. 22.True or false: a toggle switch flips up or down. (a) False (b) True
23. 23.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
24. 24.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
25. 25.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
26. 26.🔘 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) Yes (b) No
27. 27.🔘 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
28. 28.True or false: a reed switch closes near a magnet. (a) False (b) True
29. 29.What does a tilt switch do? (a) closes near a magnet (b) stays where you flip it (c) slides side to side (d) closes when tipped over
30. 30.🔘 When a switch is ON, the circuit is … (a) cut (b) broken (c) closed (d) open
31. 31.🔘 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?
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) No (b) Yes
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 ON. Does the bulb glow? (a) No (b) Yes
34. 34.🔘 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?
35. 35.True or false: a reed switch works only while pressed. (a) True (b) False
36. 36.True or false: a toggle switch closes near a magnet. (a) False (b) True
37. 37.True or false: a toggle switch stays where you flip it. (a) False (b) True
38. 38.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) only when both are ON (d) when either is ON
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 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) Yes (b) No

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