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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 223 · 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 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
  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 OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  3. 3.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a push button (c) a slide switch (d) a reed switch
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  5. 5.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a slide switch
  6. 6.🔘 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
  7. 7.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) open (d) cut
  8. 8.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  9. 9.True or false: a tilt switch flips up or down. (a) False (b) True
  10. 10.True or false: a toggle switch stays where you flip it. (a) False (b) True
  11. 11.🔘 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) Yes (b) No
  12. 12.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) makes electricity (d) changes the voltage
  13. 13.🔘 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?
  14. 14.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a toggle switch (c) a reed switch (d) a slide switch
  15. 15.🔘 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) Yes (b) No
  16. 16.What does a push button do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) flips up or down
  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 OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  18. 18.🔘 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) Yes (b) No
  19. 19.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) springs back when let go (d) closes near a magnet
  20. 20.What does a tilt switch do? (a) flips up or down (b) works only while pressed (c) closes when tipped over (d) slides side to side
  21. 21.What does a reed switch do? (a) springs back when let go (b) slides side to side (c) closes when tipped over (d) closes near a magnet
  22. 22.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  23. 23.True or false: a tilt switch works only while pressed. (a) True (b) False
  24. 24.True or false: a push button closes when tipped over. (a) True (b) False
  25. 25.True or false: a push button slides side to side. (a) False (b) True
  26. 26.True or false: a push button works only while pressed. (a) True (b) False
  27. 27.True or false: a reed switch closes when tipped over. (a) False (b) True
  28. 28.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
  29. 29.🔘 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 OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  30. 30.What does a push button do? (a) slides side to side (b) works only while pressed (c) closes near a magnet (d) closes when tipped over
  31. 31.🔘 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?
  32. 32.🔘 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
  33. 33.🔘 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?
  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 OFF, 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 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
  36. 36.🔘 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
  37. 37.🔘 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?
  38. 38.🔘 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?
  39. 39.🔘 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
  40. 40.🔘 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?

Answer key

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

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