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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 161 · 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.🔘 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
  2. 2.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a tilt switch (c) a push button (d) a reed switch
  3. 3.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) cut (d) broken
  4. 4.What does a toggle switch do? (a) flips up or down (b) closes near a magnet (c) slides side to side (d) works only while pressed
  5. 5.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a slide switch
  6. 6.🔘 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
  7. 7.What does a push button do? (a) springs back when let go (b) stays where you flip it (c) slides side to side (d) flips up or down
  8. 8.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle 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.What does a slide switch do? (a) works only while pressed (b) stays where you flip it (c) flips up or down (d) slides side to side
  11. 11.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) changes the voltage (d) opens or closes the loop
  12. 12.🔘 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
  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 OFF, B is OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  14. 14.What does a tilt switch do? (a) closes when tipped over (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  15. 15.What does a toggle switch do? (a) closes near a magnet (b) springs back when let go (c) stays where you flip it (d) slides side to side
  16. 16.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  17. 17.True or false: a tilt switch closes when tipped over. (a) True (b) False
  18. 18.What does a push button do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) slides side to side
  19. 19.🔘 Which kind of switch works only while pressed? (a) a push button (b) a slide switch (c) a reed switch (d) a tilt switch
  20. 20.True or false: a slide switch slides side to side. (a) False (b) True
  21. 21.What does a reed switch do? (a) closes near a magnet (b) springs back when let go (c) closes when tipped over (d) stays where you flip it
  22. 22.🔘 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
  23. 23.🔘 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 OFF, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  24. 24.True or false: a reed switch closes near a magnet. (a) False (b) True
  25. 25.True or false: a push button works only while pressed. (a) True (b) False
  26. 26.🔘 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?
  27. 27.True or false: a tilt switch stays where you flip it. (a) True (b) False
  28. 28.True or false: a tilt switch closes near a magnet. (a) False (b) True
  29. 29.🔘 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?
  30. 30.🔘 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?
  31. 31.🔘 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
  32. 32.🔘 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
  33. 33.🔘 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
  34. 34.True or false: a push button closes when tipped over. (a) True (b) False
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  36. 36.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  37. 37.🔘 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?
  38. 38.🔘 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
  39. 39.True or false: a toggle switch stays where you flip it. (a) True (b) False
  40. 40.🔘 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) Yes (b) No

Answer key

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

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