Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 230 · 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.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) open (d) closed
2. 2.🔘 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
3. 3.What does a toggle switch do? (a) closes when tipped over (b) slides side to side (c) flips up or down (d) works only while pressed
4. 4.What does a tilt switch do? (a) flips up or down (b) springs back when let go (c) stays where you flip it (d) closes when tipped over
5. 5.True or false: a reed switch closes near a magnet. (a) True (b) False
6. 6.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a toggle switch (c) a push button (d) a reed switch
7. 7.🔘 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?
8. 8.True or false: a push button works only while pressed. (a) False (b) True
9. 9.True or false: a push button flips up or down. (a) False (b) True
10. 10.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
11. 11.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) never (d) when both are ON
12. 12.True or false: a push button closes near a magnet. (a) False (b) True
13. 13.🔘 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 OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
14. 14.True or false: a slide switch closes near a magnet. (a) True (b) False
15. 15.True or false: a toggle switch closes when tipped over. (a) False (b) True
16. 16.🔘 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
17. 17.What does a slide switch do? (a) slides side to side (b) flips up or down (c) closes near a magnet (d) closes when tipped over
18. 18.🔘 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
19. 19.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
20. 20.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) changes the voltage (d) makes electricity
21. 21.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
22. 22.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) when either is ON (c) only when both are OFF (d) only when both are ON
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.🔘 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 OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
25. 25.🔘 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
26. 26.True or false: a push button springs back when let go. (a) False (b) True
27. 27.True or false: a tilt switch closes when tipped over. (a) True (b) False
28. 28.🔘 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
29. 29.🔘 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
30. 30.What does a push button do? (a) closes near a magnet (b) closes when tipped over (c) springs back when let go (d) slides side to side
31. 31.🔘 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 OFF, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
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 ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
33. 33.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
34. 34.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) closes when tipped over (d) stays where you flip it
35. 35.True or false: a toggle switch works only while pressed. (a) False (b) True
36. 36.True or false: a tilt switch works only while pressed. (a) True (b) False
37. 37.True or false: a push button stays where you flip it. (a) True (b) False
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 OFF. Does the bulb glow? (a) Yes (b) No
39. 39.🔘 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) 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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No

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