Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 140 · 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 toggle switch flips up or down. (a) True (b) False
2. 2.True or false: a tilt switch closes when tipped over. (a) True (b) False
3. 3.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a push button
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.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) makes electricity (d) opens or closes the loop
6. 6.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a push button
7. 7.🔘 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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
8. 8.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when either is ON (d) when both are ON
9. 9.🔘 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
10. 10.🔘 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
11. 11.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
12. 12.True or false: a push button stays where you flip it. (a) False (b) True
13. 13.True or false: a reed switch slides side to side. (a) True (b) False
14. 14.True or false: a push button slides side to side. (a) False (b) True
15. 15.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a toggle switch (c) a reed switch (d) a slide switch
16. 16.What does a reed switch do? (a) flips up or down (b) springs back when let go (c) closes near a magnet (d) works only while pressed
17. 17.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a tilt switch (c) a reed switch (d) a toggle switch
18. 18.🔘 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?
19. 19.True or false: a push button closes near a magnet. (a) True (b) False
20. 20.🔘 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 ON, B is ON, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
21. 21.True or false: a tilt switch closes near a magnet. (a) False (b) True
22. 22.What does a toggle switch do? (a) closes when tipped over (b) works only while pressed (c) slides side to side (d) flips up or down
23. 23.What does a push button do? (a) closes when tipped over (b) springs back when let go (c) stays where you flip it (d) slides side to side
24. 24.True or false: a reed switch works only while pressed. (a) True (b) False
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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
26. 26.What does a toggle switch do? (a) stays where you flip it (b) springs back when let go (c) closes when tipped over (d) works only while pressed
27. 27.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
28. 28.🔘 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
29. 29.🔘 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?
30. 30.True or false: a reed switch closes near a magnet. (a) True (b) False
31. 31.What does a slide switch do? (a) springs back when let go (b) slides side to side (c) stays where you flip it (d) flips up or down
32. 32.🔘 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
33. 33.🔘 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?
34. 34.🔘 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) Yes (b) No
35. 35.True or false: a toggle switch springs back when let go. (a) False (b) True
36. 36.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
37. 37.🔘 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?
38. 38.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
39. 39.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) when either is ON (c) never (d) only when both are ON
40. 40.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) closed (d) open

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