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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 430 · 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.🔘 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?
  2. 2.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
  3. 3.True or false: a reed switch closes near a magnet. (a) True (b) False
  4. 4.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) works only while pressed (d) springs back when let go
  5. 5.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  6. 6.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
  7. 7.True or false: a toggle switch stays where you flip it. (a) True (b) False
  8. 8.What does a reed switch do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) closes when tipped over
  9. 9.True or false: a slide switch closes near a magnet. (a) False (b) True
  10. 10.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  11. 11.🔘 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?
  12. 12.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) only when both are ON (d) when either is ON
  13. 13.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) broken (d) cut
  14. 14.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
  15. 15.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a reed switch (d) a tilt switch
  16. 16.True or false: a push button closes near a magnet. (a) False (b) True
  17. 17.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
  18. 18.🔘 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
  19. 19.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a push button
  20. 20.🔘 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?
  21. 21.🔘 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
  22. 22.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  23. 23.🔘 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
  24. 24.🔘 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?
  25. 25.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  26. 26.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.True or false: a tilt switch closes when tipped over. (a) True (b) False
  28. 28.What does a push button do? (a) stays where you flip it (b) closes near a magnet (c) slides side to side (d) works only while pressed
  29. 29.True or false: a reed switch works only while pressed. (a) False (b) True
  30. 30.🔘 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?
  31. 31.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) stays where you flip it (d) works only while pressed
  32. 32.What does a tilt switch do? (a) stays where you flip it (b) closes near a magnet (c) closes when tipped over (d) springs back when let go
  33. 33.🔘 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?
  34. 34.🔘 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) No (b) Yes
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  37. 37.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  38. 38.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when either is ON (d) when both are ON
  40. 40.🔘 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) No (b) Yes

Answer key

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

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