Electronics Worksheet: Switches in a Circuit

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

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