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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 597 · 40 questions
TalentJR

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.

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  1. 1.🔘 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
  2. 2.🔘 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?
  3. 3.🔘 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
  4. 4.🔘 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
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are OFF (c) only when both are ON (d) never
  6. 6.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a slide switch (c) a tilt switch (d) a toggle switch
  7. 7.What does a slide switch do? (a) springs back when let go (b) closes when tipped over (c) works only while pressed (d) slides side to side
  8. 8.True or false: a push button closes near a magnet. (a) True (b) False
  9. 9.True or false: a toggle switch stays where you flip it. (a) True (b) False
  10. 10.True or false: a reed switch slides side to side. (a) False (b) True
  11. 11.True or false: a push button springs back when let go. (a) False (b) True
  12. 12.🔘 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?
  13. 13.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) open (d) closed
  14. 14.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  16. 16.🔘 Which kind of switch slides side to side? (a) a push button (b) a toggle switch (c) a tilt switch (d) a slide switch
  17. 17.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
  18. 18.What does a toggle switch do? (a) works only while pressed (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  19. 19.🔘 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?
  20. 20.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a slide switch (c) a tilt switch (d) a reed switch
  21. 21.True or false: a slide switch springs back when let go. (a) True (b) False
  22. 22.True or false: a slide switch stays where you flip it. (a) True (b) False
  23. 23.🔘 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?
  24. 24.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  25. 25.What does a toggle switch do? (a) closes near a magnet (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
  26. 26.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) works only while pressed (d) springs back when let go
  27. 27.🔘 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?
  28. 28.🔘 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 OFF 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 ON, B is ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  30. 30.🔘 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?
  31. 31.🔘 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
  32. 32.True or false: a tilt switch closes when tipped over. (a) True (b) False
  33. 33.🔘 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) No (b) Yes
  34. 34.🔘 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
  35. 35.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) opens or closes the loop (d) changes the voltage
  37. 37.True or false: a reed switch closes near a magnet. (a) False (b) True
  38. 38.True or false: a toggle switch works only while pressed. (a) False (b) True
  39. 39.True or false: a slide switch slides side to side. (a) True (b) False
  40. 40.What does a push button do? (a) slides side to side (b) stays where you flip it (c) springs back when let go (d) closes near a magnet

Answer key

  1. Yes
  2. 3
  3. No
  4. Yes
  5. when either is ON
  6. a toggle switch
  7. slides side to side
  8. False
  9. True
  10. False
  11. True
  12. 1
  13. closed
  14. No
  15. No
  16. a slide switch
  17. when both are ON
  18. flips up or down
  19. 1
  20. a reed switch
  21. False
  22. False
  23. 1
  24. No
  25. stays where you flip it
  26. closes when tipped over
  27. 2
  28. No
  29. Yes
  30. 4
  31. Yes
  32. True
  33. No
  34. No
  35. Yes
  36. opens or closes the loop
  37. True
  38. False
  39. True
  40. springs back when let go

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