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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 646 · 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.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
  2. 2.🔘 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) No (b) Yes
  3. 3.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  5. 5.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  6. 6.🔘 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?
  7. 7.🔘 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?
  8. 8.True or false: a push button springs back when let go. (a) True (b) False
  9. 9.🔘 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?
  10. 10.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) when either is ON (d) only when both are ON
  11. 11.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  12. 12.True or false: a reed switch closes near a magnet. (a) False (b) True
  13. 13.What does a push button do? (a) works only while pressed (b) flips up or down (c) closes near a magnet (d) stays where you flip it
  14. 14.🔘 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) No (b) Yes
  15. 15.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  16. 16.True or false: a push button flips up or down. (a) False (b) True
  17. 17.🔘 Which kind of switch works only while pressed? (a) a push button (b) a toggle switch (c) a tilt switch (d) a reed switch
  18. 18.🔘 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?
  19. 19.🔘 Which kind of switch flips up or down? (a) a push button (b) a toggle switch (c) a tilt switch (d) a slide switch
  20. 20.What does a slide switch do? (a) works only while pressed (b) flips up or down (c) slides side to side (d) springs back when let go
  21. 21.🔘 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) No (b) Yes
  22. 22.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) open (d) broken
  23. 23.What does a reed switch do? (a) flips up or down (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
  24. 24.True or false: a slide switch slides side to side. (a) False (b) True
  25. 25.🔘 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
  26. 26.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a push button
  27. 27.True or false: a reed switch flips up or down. (a) False (b) True
  28. 28.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) stores current (d) opens or closes the loop
  29. 29.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  30. 30.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  31. 31.True or false: a toggle switch closes near a magnet. (a) False (b) True
  32. 32.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) when both are OFF (d) never
  33. 33.🔘 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) Yes (b) No
  34. 34.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is ON, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  35. 35.True or false: a tilt switch works only while pressed. (a) False (b) True
  36. 36.True or false: a push button slides side to side. (a) True (b) False
  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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  38. 38.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) slides side to side (d) flips up or down
  39. 39.🔘 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?
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes

Answer key

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

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