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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 535 · 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.True or false: a toggle switch stays where you flip it. (a) False (b) True
  2. 2.🔘 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?
  3. 3.What does a reed switch do? (a) flips up or down (b) works only while pressed (c) stays where you flip it (d) closes near a magnet
  4. 4.🔘 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?
  5. 5.🔘 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
  6. 6.True or false: a push button works only while pressed. (a) False (b) True
  7. 7.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) opens or closes the loop (d) stores current
  8. 8.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  9. 9.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
  10. 10.🔘 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?
  11. 11.🔘 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) No (b) Yes
  12. 12.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) closes when tipped over (d) stays where you flip it
  13. 13.🔘 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) Yes (b) No
  14. 14.🔘 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?
  15. 15.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when either is ON (d) when both are ON
  16. 16.True or false: a push button springs back when let go. (a) True (b) False
  17. 17.🔘 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) Yes (b) No
  18. 18.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  19. 19.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  20. 20.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  21. 21.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) broken (d) closed
  22. 22.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  23. 23.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  24. 24.True or false: a reed switch springs back when let go. (a) False (b) True
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  26. 26.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  27. 27.🔘 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) only when both are OFF (d) never
  28. 28.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  29. 29.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  30. 30.🔘 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) No (b) Yes
  31. 31.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  32. 32.What does a tilt switch do? (a) flips up or down (b) closes near a magnet (c) closes when tipped over (d) works only while pressed
  33. 33.True or false: a push button slides side to side. (a) True (b) False
  34. 34.🔘 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 ON and D is ON. Does the bulb glow? (a) Yes (b) No
  35. 35.What does a push button do? (a) works only while pressed (b) stays where you flip it (c) flips up or down (d) slides side to side
  36. 36.True or false: a slide switch closes when tipped over. (a) False (b) True
  37. 37.🔘 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
  38. 38.🔘 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?
  39. 39.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  40. 40.🔘 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 ON. Does the bulb glow? (a) Yes (b) No

Answer key

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

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