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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 220 · 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.True or false: a toggle switch flips up or down. (a) True (b) False
  2. 2.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) broken (d) closed
  3. 3.🔘 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
  4. 4.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) changes the voltage (d) stores current
  5. 5.🔘 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?
  6. 6.True or false: a reed switch closes near a magnet. (a) True (b) False
  7. 7.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a reed switch (c) a push button (d) a toggle switch
  8. 8.🔘 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
  9. 9.True or false: a tilt switch closes when tipped over. (a) False (b) True
  10. 10.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are ON (c) never (d) only when both are OFF
  11. 11.What does a tilt switch do? (a) slides side to side (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
  12. 12.🔘 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  13. 13.🔘 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
  14. 14.What does a slide switch do? (a) slides side to side (b) stays where you flip it (c) closes near a magnet (d) springs back when let go
  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 OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  16. 16.🔘 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
  17. 17.True or false: a push button springs back when let go. (a) True (b) False
  18. 18.🔘 Which kind of switch slides side to side? (a) a push button (b) a tilt switch (c) a slide switch (d) a reed switch
  19. 19.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a toggle switch (c) a push button (d) a tilt switch
  21. 21.🔘 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?
  22. 22.🔘 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?
  23. 23.🔘 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
  24. 24.🔘 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?
  25. 25.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a slide switch (d) a toggle switch
  26. 26.🔘 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
  27. 27.True or false: a tilt switch springs back when let go. (a) False (b) True
  28. 28.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) flips up or down (d) closes near a magnet
  29. 29.True or false: a reed switch springs back when let go. (a) True (b) False
  30. 30.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  31. 31.What does a reed switch do? (a) springs back when let go (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  32. 32.What does a push button do? (a) springs back when let go (b) closes near a magnet (c) flips up or down (d) stays where you flip it
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  34. 34.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  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.True or false: a toggle switch closes when tipped over. (a) True (b) False
  38. 38.True or false: a tilt switch slides side to side. (a) True (b) False
  39. 39.True or false: a toggle switch stays where you flip it. (a) True (b) False
  40. 40.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No

Answer key

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

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