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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 134 · 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 tilt switch closes near a magnet. (a) True (b) False
  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 ON, B is OFF 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 push button (b) a toggle switch (c) a reed switch (d) a slide switch
  4. 4.🔘 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) No (b) Yes
  5. 5.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a reed switch
  6. 6.True or false: a slide switch flips up or down. (a) True (b) False
  7. 7.🔘 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
  8. 8.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  9. 9.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) changes the voltage (d) opens or closes the loop
  10. 10.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) closed (d) cut
  11. 11.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
  12. 12.🔘 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) No (b) Yes
  13. 13.🔘 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
  14. 14.🔘 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?
  15. 15.🔘 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
  16. 16.🔘 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
  17. 17.🔘 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?
  18. 18.🔘 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
  19. 19.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a slide switch (c) a tilt switch (d) a toggle switch
  20. 20.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) closes near a magnet (d) closes when tipped over
  21. 21.🔘 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
  22. 22.True or false: a push button works only while pressed. (a) False (b) True
  23. 23.True or false: a toggle switch flips up or down. (a) False (b) True
  24. 24.🔘 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
  25. 25.What does a toggle switch do? (a) slides side to side (b) works only while pressed (c) flips up or down (d) springs back when let go
  26. 26.What does a push button do? (a) closes when tipped over (b) stays where you flip it (c) closes near a magnet (d) springs back when let go
  27. 27.What does a tilt switch do? (a) closes near a magnet (b) closes when tipped over (c) springs back when let go (d) works only while pressed
  28. 28.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  29. 29.🔘 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?
  30. 30.🔘 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?
  31. 31.True or false: a toggle switch stays where you flip it. (a) True (b) False
  32. 32.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) when either is ON (d) never
  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) Yes (b) No
  34. 34.True or false: a reed switch closes when tipped over. (a) True (b) False
  35. 35.True or false: a reed switch works only while pressed. (a) True (b) False
  36. 36.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  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) Yes (b) No
  38. 38.What does a reed switch do? (a) works only while pressed (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
  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 ON 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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes

Answer key

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

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