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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 469 · 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.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when both are ON (d) when either is ON
  2. 2.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
  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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  4. 4.🔘 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
  5. 5.What does a slide switch do? (a) flips up or down (b) stays where you flip it (c) closes near a magnet (d) slides side to side
  6. 6.🔘 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
  7. 7.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  8. 8.🔘 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
  9. 9.True or false: a slide switch flips up or down. (a) True (b) False
  10. 10.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) makes electricity (c) stores current (d) changes the voltage
  11. 11.What does a reed switch do? (a) closes when tipped over (b) closes near a magnet (c) flips up or down (d) stays where you flip it
  12. 12.🔘 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) never (d) only when both are ON
  13. 13.🔘 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?
  14. 14.What does a push button do? (a) springs back when let go (b) stays where you flip it (c) closes near a magnet (d) slides side to side
  15. 15.True or false: a toggle switch stays where you flip it. (a) False (b) True
  16. 16.🔘 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?
  17. 17.🔘 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?
  18. 18.What does a toggle switch do? (a) closes near a magnet (b) springs back when let go (c) stays where you flip it (d) slides side to side
  19. 19.True or false: a reed switch closes near a magnet. (a) False (b) True
  20. 20.True or false: a tilt switch flips up or down. (a) True (b) False
  21. 21.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a push button
  22. 22.True or false: a push button flips up or down. (a) True (b) False
  23. 23.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a push button (c) a slide switch (d) a toggle switch
  24. 24.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  25. 25.True or false: a reed switch stays where you flip it. (a) True (b) False
  26. 26.🔘 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?
  27. 27.True or false: a slide switch slides side to side. (a) True (b) False
  28. 28.What does a push button do? (a) closes near a magnet (b) works only while pressed (c) flips up or down (d) stays where you flip it
  29. 29.🔘 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 OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  30. 30.What does a tilt switch do? (a) closes when tipped over (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  31. 31.🔘 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?
  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) No (b) Yes
  33. 33.🔘 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) Yes (b) No
  34. 34.True or false: a tilt switch works only while pressed. (a) False (b) True
  35. 35.🔘 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) Yes (b) No
  36. 36.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a toggle switch
  37. 37.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a tilt switch (c) a toggle switch (d) a reed switch
  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 ON, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  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 ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button

Answer key

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

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