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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 567 · 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.What does a push button do? (a) closes near a magnet (b) stays where you flip it (c) works only while pressed (d) closes when tipped over
  2. 2.True or false: a toggle switch works only while pressed. (a) True (b) False
  3. 3.🔘 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?
  4. 4.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) opens or closes the loop (d) makes electricity
  5. 5.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are ON (d) when both are OFF
  6. 6.🔘 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?
  7. 7.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) closed (d) cut
  8. 8.True or false: a tilt switch closes when tipped over. (a) False (b) True
  9. 9.What does a reed switch do? (a) springs back when let go (b) closes near a magnet (c) flips up or down (d) stays where you flip it
  10. 10.True or false: a slide switch stays where you flip it. (a) True (b) False
  11. 11.What does a slide switch do? (a) slides side to side (b) flips up or down (c) works only while pressed (d) stays where you flip it
  12. 12.🔘 Which kind of switch works only while pressed? (a) a push button (b) a reed switch (c) a tilt switch (d) a slide switch
  13. 13.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 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
  15. 15.🔘 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?
  16. 16.What does a toggle switch do? (a) slides side to side (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
  17. 17.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a push button (c) a reed switch (d) a tilt switch
  18. 18.What does a toggle switch do? (a) works only while pressed (b) flips up or down (c) closes near a magnet (d) springs back when let go
  19. 19.🔘 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) Yes (b) No
  20. 20.True or false: a toggle switch stays where you flip it. (a) False (b) True
  21. 21.True or false: a reed switch flips up or down. (a) False (b) True
  22. 22.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a reed switch
  23. 23.What does a tilt switch do? (a) closes near a magnet (b) flips up or down (c) stays where you flip it (d) closes when tipped over
  24. 24.🔘 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?
  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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  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 OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  27. 27.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  28. 28.🔘 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?
  29. 29.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a slide switch (c) a tilt switch (d) a toggle switch
  30. 30.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) only when both are OFF (d) never
  31. 31.What does a push button do? (a) springs back when let go (b) slides side to side (c) closes when tipped over (d) flips up or down
  32. 32.🔘 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?
  33. 33.🔘 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
  34. 34.True or false: a tilt switch closes near a magnet. (a) False (b) True
  35. 35.True or false: a reed switch closes near a magnet. (a) True (b) False
  36. 36.True or false: a reed switch springs back when let go. (a) True (b) False
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  38. 38.🔘 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 OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  39. 39.🔘 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
  40. 40.🔘 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 ON. Does the bulb glow? (a) No (b) Yes

Answer key

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

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