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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 387 · 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.🔘 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
  2. 2.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  3. 3.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a push button (c) a slide switch (d) a tilt switch
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  5. 5.🔘 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) Yes (b) No
  6. 6.🔘 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?
  7. 7.🔘 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
  8. 8.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) never (c) only when both are ON (d) only when both are OFF
  9. 9.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  10. 10.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) flips up or down (d) closes near a magnet
  11. 11.True or false: a toggle switch closes when tipped over. (a) False (b) True
  12. 12.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  13. 13.True or false: a reed switch closes near a magnet. (a) True (b) False
  14. 14.What does a tilt switch do? (a) closes when tipped over (b) springs back when let go (c) works only while pressed (d) flips up or down
  15. 15.🔘 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) No (b) Yes
  16. 16.🔘 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) No (b) Yes
  17. 17.True or false: a toggle switch stays where you flip it. (a) False (b) True
  18. 18.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) open (d) cut
  19. 19.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.What does a slide switch do? (a) slides side to side (b) works only while pressed (c) closes near a magnet (d) flips up or down
  21. 21.True or false: a slide switch slides side to side. (a) False (b) True
  22. 22.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  23. 23.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  25. 25.True or false: a push button works only while pressed. (a) True (b) False
  26. 26.What does a push button do? (a) closes when tipped over (b) springs back when let go (c) closes near a magnet (d) slides side to side
  27. 27.🔘 A bulb and a cell are joined through 6 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 and B are joined one after another in a single loop (series). A is ON and B is ON. Does the bulb glow? (a) No (b) Yes
  29. 29.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) when either is ON (d) never
  30. 30.True or false: a toggle switch flips up or down. (a) False (b) True
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 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) Yes (b) No
  33. 33.True or false: a push button slides side to side. (a) True (b) False
  34. 34.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  35. 35.🔘 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
  36. 36.True or false: a tilt switch closes near a magnet. (a) True (b) False
  37. 37.🔘 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?
  38. 38.🔘 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 OFF, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  39. 39.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) stays where you flip it (d) springs back when let go
  40. 40.🔘 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?

Answer key

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

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