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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 44 · 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) open (b) cut (c) broken (d) closed
  2. 2.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  3. 3.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a slide switch (d) a toggle switch
  4. 4.What does a tilt switch do? (a) flips up or down (b) closes when tipped over (c) stays where you flip it (d) springs back when let go
  5. 5.What does a slide switch do? (a) springs back when let go (b) flips up or down (c) slides side to side (d) works only while pressed
  6. 6.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) never (d) when both are ON
  7. 7.🔘 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
  8. 8.What does a reed switch do? (a) stays where you flip it (b) flips up or down (c) closes near a magnet (d) springs back when let go
  9. 9.What does a toggle switch do? (a) stays where you flip it (b) closes near a magnet (c) closes when tipped over (d) springs back when let go
  10. 10.🔘 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?
  11. 11.What does a push button do? (a) closes when tipped over (b) slides side to side (c) closes near a magnet (d) springs back when let go
  12. 12.True or false: a slide switch closes near a magnet. (a) True (b) False
  13. 13.True or false: a push button works only while pressed. (a) True (b) False
  14. 14.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a push button (c) a tilt switch (d) a slide switch
  15. 15.🔘 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
  16. 16.🔘 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
  17. 17.🔘 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
  18. 18.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  19. 19.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a tilt switch
  20. 20.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
  21. 21.🔘 Which kind of switch slides side to side? (a) a push button (b) a reed switch (c) a slide switch (d) a tilt switch
  22. 22.🔘 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
  23. 23.True or false: a slide switch springs back when let go. (a) False (b) True
  24. 24.What does a toggle switch do? (a) flips up or down (b) closes near a magnet (c) works only while pressed (d) slides side to side
  25. 25.🔘 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?
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.🔘 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
  28. 28.True or false: a toggle switch closes near a magnet. (a) False (b) True
  29. 29.🔘 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?
  30. 30.What does a push button do? (a) slides side to side (b) works only while pressed (c) stays where you flip it (d) flips up or down
  31. 31.True or false: a slide switch slides side to side. (a) False (b) True
  32. 32.🔘 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?
  33. 33.True or false: a slide switch stays where you flip it. (a) True (b) False
  34. 34.🔘 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
  35. 35.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) stores current (d) changes the voltage
  36. 36.🔘 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?
  37. 37.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
  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 ON. Does the bulb glow? (a) Yes (b) No
  39. 39.True or false: a toggle switch flips up or down. (a) True (b) False
  40. 40.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No

Answer key

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

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