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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 741 · 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 OFF, B is OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  2. 2.🔘 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?
  3. 3.What does a push button do? (a) flips up or down (b) works only while pressed (c) closes near a magnet (d) closes when tipped over
  4. 4.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  5. 5.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) changes the voltage (d) makes electricity
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  7. 7.🔘 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
  8. 8.What does a toggle switch do? (a) flips up or down (b) slides side to side (c) works only while pressed (d) closes when tipped over
  9. 9.🔘 Which kind of switch springs back when let go? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  10. 10.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) when either is ON (d) never
  11. 11.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) cut (d) broken
  12. 12.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  13. 13.What does a reed switch do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  14. 14.What does a slide switch do? (a) springs back when let go (b) flips up or down (c) stays where you flip it (d) slides side to side
  15. 15.True or false: a push button works only while pressed. (a) True (b) False
  16. 16.🔘 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?
  17. 17.🔘 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?
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  19. 19.True or false: a toggle switch springs back when let go. (a) True (b) False
  20. 20.True or false: a toggle switch closes when tipped over. (a) True (b) False
  21. 21.True or false: a toggle switch slides side to side. (a) True (b) False
  22. 22.What does a tilt switch do? (a) works only while pressed (b) flips up or down (c) closes near a magnet (d) closes when tipped over
  23. 23.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
  24. 24.🔘 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
  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 OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  27. 27.🔘 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
  28. 28.True or false: a reed switch closes near a magnet. (a) True (b) False
  29. 29.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a tilt switch (c) a push button (d) a toggle switch
  30. 30.True or false: a tilt switch closes when tipped over. (a) True (b) False
  31. 31.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a push button (c) a tilt switch (d) a reed switch
  32. 32.True or false: a slide switch slides side to side. (a) True (b) False
  33. 33.🔘 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?
  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 ON, 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  36. 36.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  37. 37.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  38. 38.🔘 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) Yes (b) No
  39. 39.🔘 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
  40. 40.🔘 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

Answer key

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

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