Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 642 · 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.🔘 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?
2. 2.True or false: a push button flips up or down. (a) False (b) True
3. 3.🔘 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?
4. 4.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) when both are ON (d) never
5. 5.🔘 Which kind of switch works only while pressed? (a) a push button (b) a tilt switch (c) a reed switch (d) a toggle switch
6. 6.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a push button (c) a reed switch (d) a tilt switch
7. 7.True or false: a toggle switch closes near a magnet. (a) False (b) True
8. 8.🔘 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 ON (d) only when both are OFF
9. 9.What does a tilt switch do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) flips up or down
10. 10.🔘 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
11. 11.What does a reed switch do? (a) springs back when let go (b) flips up or down (c) stays where you flip it (d) closes near a magnet
12. 12.True or false: a slide switch closes when tipped over. (a) False (b) True
13. 13.True or false: a push button closes when tipped over. (a) True (b) False
14. 14.True or false: a slide switch flips up or down. (a) False (b) True
15. 15.True or false: a slide switch springs back when let go. (a) True (b) False
16. 16.True or false: a slide switch slides side to side. (a) False (b) True
17. 17.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a toggle switch (c) a tilt switch (d) a slide switch
18. 18.🔘 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?
19. 19.🔘 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
20. 20.What does a push button do? (a) closes near a magnet (b) slides side to side (c) closes when tipped over (d) works only while pressed
21. 21.True or false: a push button closes near a magnet. (a) False (b) True
22. 22.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
23. 23.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a push button
24. 24.True or false: a reed switch closes near a magnet. (a) True (b) False
25. 25.What does a slide switch do? (a) stays where you flip it (b) flips up or down (c) slides side to side (d) closes when tipped over
26. 26.🔘 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) No (b) Yes
27. 27.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) broken (d) open
28. 28.True or false: a push button works only while pressed. (a) False (b) True
29. 29.True or false: a toggle switch works only while pressed. (a) False (b) True
30. 30.🔘 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
31. 31.🔘 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
32. 32.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) opens or closes the loop (d) stores current
33. 33.🔘 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?
34. 34.🔘 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
35. 35.🔘 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
36. 36.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a toggle switch (c) a push button (d) a tilt switch
37. 37.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
38. 38.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a tilt switch (c) a reed switch (d) a push button
39. 39.🔘 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
40. 40.True or false: a slide switch stays where you flip it. (a) False (b) True

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