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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 483 · 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.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) open (d) closed
  2. 2.🔘 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) Yes (b) No
  3. 3.What does a toggle switch do? (a) works only while pressed (b) closes when tipped over (c) slides side to side (d) stays where you flip it
  4. 4.🔘 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
  5. 5.What does a toggle switch do? (a) closes when tipped over (b) closes near a magnet (c) slides side to side (d) flips up or down
  6. 6.What does a slide switch do? (a) closes near a magnet (b) works only while pressed (c) slides side to side (d) stays where you flip it
  7. 7.🔘 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
  8. 8.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) makes electricity (d) opens or closes the loop
  9. 9.🔘 Which kind of switch works only while pressed? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  10. 10.What does a push button do? (a) closes near a magnet (b) works only while pressed (c) slides side to side (d) stays where you flip it
  11. 11.What does a tilt switch do? (a) slides side to side (b) springs back when let go (c) closes when tipped over (d) stays where you flip it
  12. 12.True or false: a toggle switch stays where you flip it. (a) False (b) True
  13. 13.🔘 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) when either is ON (d) only when both are OFF
  15. 15.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a tilt switch (c) a push button (d) a reed switch
  16. 16.True or false: a slide switch springs back when let go. (a) False (b) True
  17. 17.🔘 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 ON and D is ON. Does the bulb glow? (a) No (b) Yes
  18. 18.🔘 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
  19. 19.True or false: a reed switch closes near a magnet. (a) False (b) True
  20. 20.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a slide switch
  21. 21.🔘 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?
  22. 22.What does a push button do? (a) stays where you flip it (b) closes near a magnet (c) closes when tipped over (d) springs back when let go
  23. 23.🔘 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?
  24. 24.🔘 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
  25. 25.🔘 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) No (b) Yes
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.🔘 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
  28. 28.🔘 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?
  29. 29.🔘 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?
  30. 30.True or false: a toggle switch flips up or down. (a) True (b) False
  31. 31.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
  32. 32.🔘 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) Yes (b) No
  33. 33.🔘 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?
  34. 34.True or false: a tilt switch closes when tipped over. (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 ON. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 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
  37. 37.What does a reed switch do? (a) slides side to side (b) closes near a magnet (c) works only while pressed (d) closes when tipped over
  38. 38.🔘 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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 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) Yes (b) No
  40. 40.True or false: a push button springs back when let go. (a) True (b) False

Answer key

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

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