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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 902 · 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 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) No (b) Yes
  2. 2.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) only when both are OFF (d) never
  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.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when both are OFF (d) when either is ON
  5. 5.🔘 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?
  6. 6.What does a reed switch do? (a) closes when tipped over (b) closes near a magnet (c) springs back when let go (d) works only while pressed
  7. 7.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  8. 8.🔘 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
  9. 9.True or false: a reed switch closes near a magnet. (a) True (b) False
  10. 10.🔘 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) No (b) Yes
  11. 11.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a slide switch (c) a reed switch (d) a push button
  12. 12.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) works only while pressed (d) springs back when let go
  13. 13.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a reed switch
  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 OFF. Does the bulb glow? (a) No (b) Yes
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  16. 16.What does a toggle switch do? (a) springs back when let go (b) slides side to side (c) works only while pressed (d) stays where you flip it
  17. 17.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) cut (d) open
  18. 18.What does a push button do? (a) closes when tipped over (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  19. 19.True or false: a push button springs back when let go. (a) True (b) False
  20. 20.🔘 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
  21. 21.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
  22. 22.🔘 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 ON and D is ON. Does the bulb glow? (a) No (b) Yes
  23. 23.🔘 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?
  24. 24.What does a tilt switch do? (a) closes near a magnet (b) flips up or down (c) closes when tipped over (d) springs back when let go
  25. 25.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  26. 26.What does a push button do? (a) slides side to side (b) flips up or down (c) closes when tipped over (d) springs back when let go
  27. 27.What does a slide switch do? (a) springs back when let go (b) slides side to side (c) works only while pressed (d) closes near a magnet
  28. 28.True or false: a slide switch flips up or down. (a) False (b) True
  29. 29.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a push button (c) a tilt switch (d) a slide switch
  30. 30.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a slide switch
  31. 31.True or false: a push button works only while pressed. (a) False (b) True
  32. 32.🔘 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) No (b) Yes
  33. 33.True or false: a toggle switch flips up or down. (a) True (b) False
  34. 34.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 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?
  37. 37.🔘 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
  38. 38.🔘 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?
  39. 39.🔘 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
  40. 40.True or false: a slide switch closes when tipped over. (a) True (b) False

Answer key

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

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