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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 347 · 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.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a push button (c) a reed switch (d) a toggle switch
  2. 2.🔘 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
  3. 3.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) open (d) cut
  4. 4.What does a toggle switch do? (a) closes when tipped over (b) works only while pressed (c) springs back when let go (d) stays where you flip it
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) never (c) only when both are OFF (d) only when both are ON
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  7. 7.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a push button
  8. 8.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
  9. 9.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  10. 10.True or false: a reed switch springs back when let go. (a) False (b) True
  11. 11.🔘 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) Yes (b) No
  12. 12.What does a push button do? (a) works only while pressed (b) flips up or down (c) closes near a magnet (d) slides side to side
  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.True or false: a push button works only while pressed. (a) True (b) False
  15. 15.What does a push button do? (a) flips up or down (b) closes when tipped over (c) slides side to side (d) springs back when let go
  16. 16.What does a tilt switch do? (a) closes when tipped over (b) springs back when let go (c) slides side to side (d) closes near a magnet
  17. 17.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) works only while pressed (d) slides side to side
  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.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.What does a slide switch do? (a) works only while pressed (b) stays where you flip it (c) slides side to side (d) springs back when let go
  21. 21.🔘 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?
  22. 22.🔘 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?
  23. 23.🔘 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
  24. 24.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) changes the voltage (d) makes electricity
  25. 25.🔘 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) No (b) Yes
  26. 26.What does a toggle switch do? (a) springs back when let go (b) flips up or down (c) works only while pressed (d) closes near a magnet
  27. 27.True or false: a slide switch slides side to side. (a) False (b) True
  28. 28.🔘 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
  29. 29.🔘 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) No (b) Yes
  30. 30.True or false: a toggle switch flips up or down. (a) True (b) False
  31. 31.🔘 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
  32. 32.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  33. 33.True or false: a slide switch stays where you flip it. (a) False (b) True
  34. 34.🔘 Which kind of switch flips up or down? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch
  35. 35.🔘 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 OFF, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  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) Yes (b) No
  37. 37.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  38. 38.🔘 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?
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  40. 40.🔘 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

Answer key

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

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