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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 982 · 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.🔘 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
  2. 2.True or false: a reed switch stays where you flip it. (a) False (b) True
  3. 3.True or false: a push button stays where you flip it. (a) True (b) False
  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 OFF. Does the bulb glow? (a) Yes (b) No
  5. 5.🔘 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
  6. 6.What does a toggle switch do? (a) flips up or down (b) works only while pressed (c) springs back when let go (d) closes when tipped over
  7. 7.🔘 Which kind of switch springs back when let go? (a) a push button (b) a toggle switch (c) a slide switch (d) a reed switch
  8. 8.🔘 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
  9. 9.What does a tilt switch do? (a) flips up or down (b) closes near a magnet (c) slides side to side (d) closes when tipped over
  10. 10.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  11. 11.🔘 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?
  12. 12.🔘 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?
  13. 13.🔘 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 ON and D is ON. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  15. 15.🔘 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
  16. 16.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a reed switch (c) a push button (d) a toggle switch
  17. 17.What does a reed switch do? (a) closes near a magnet (b) springs back when let go (c) flips up or down (d) stays where you flip it
  18. 18.What does a slide switch do? (a) closes when tipped over (b) works only while pressed (c) flips up or down (d) slides side to side
  19. 19.True or false: a tilt switch springs back when let go. (a) False (b) True
  20. 20.🔘 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?
  21. 21.True or false: a push button closes near a magnet. (a) True (b) False
  22. 22.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  23. 23.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  24. 24.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) closed (d) broken
  25. 25.🔘 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
  26. 26.True or false: a push button closes when tipped over. (a) True (b) False
  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 ON. Does the bulb glow? (a) Yes (b) No
  28. 28.🔘 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) Yes (b) No
  29. 29.What does a push button do? (a) slides side to side (b) stays where you flip it (c) closes near a magnet (d) springs back when let go
  30. 30.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  31. 31.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a reed switch
  32. 32.🔘 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 OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  33. 33.🔘 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
  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 OFF, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  35. 35.🔘 A bulb and a cell are joined through 6 switches on 6 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?
  36. 36.🔘 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
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  38. 38.True or false: a push button works only while pressed. (a) True (b) False
  39. 39.🔘 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) No (b) Yes
  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) No (b) Yes

Answer key

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

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