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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 374 · 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) when both are ON (b) never (c) when both are OFF (d) when either is ON
  2. 2.True or false: a toggle switch flips up or down. (a) False (b) True
  3. 3.🔘 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 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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  5. 5.🔘 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
  6. 6.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) flips up or down (d) closes near a magnet
  7. 7.True or false: a tilt switch closes when tipped over. (a) True (b) False
  8. 8.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
  9. 9.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) makes electricity (c) stores current (d) changes the voltage
  10. 10.What does a reed switch do? (a) flips up or down (b) springs back when let go (c) closes near a magnet (d) slides side to side
  11. 11.What does a tilt switch do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) closes near a magnet
  12. 12.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a tilt switch (c) a reed switch (d) a toggle switch
  13. 13.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 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
  15. 15.True or false: a push button closes when tipped over. (a) False (b) True
  16. 16.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) when either is ON (c) never (d) only when both are ON
  17. 17.What does a slide switch do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) slides side to side
  18. 18.🔘 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
  19. 19.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  20. 20.🔘 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
  21. 21.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  22. 22.True or false: a tilt switch flips up or down. (a) False (b) True
  23. 23.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a push button
  24. 24.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a slide switch
  25. 25.🔘 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 OFF, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  26. 26.🔘 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?
  27. 27.True or false: a reed switch closes near a magnet. (a) False (b) True
  28. 28.True or false: a push button closes near a magnet. (a) True (b) False
  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 OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.True or false: a toggle switch springs back when let go. (a) True (b) False
  31. 31.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 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
  33. 33.What does a push button do? (a) closes near a magnet (b) stays where you flip it (c) slides side to side (d) springs back when let go
  34. 34.True or false: a push button slides side to side. (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 ON and B is OFF. Does the bulb glow? (a) Yes (b) No
  36. 36.What does a push button do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) stays where you flip it
  37. 37.🔘 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?
  38. 38.🔘 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) Yes (b) No
  39. 39.🔘 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?
  40. 40.What does a toggle switch do? (a) stays where you flip it (b) works only while pressed (c) slides side to side (d) closes when tipped over

Answer key

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

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