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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 784 · 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.🔘 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) No (b) Yes
  2. 2.🔘 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?
  3. 3.🔘 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) No (b) Yes
  4. 4.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) never (d) when both are OFF
  5. 5.What does a push button do? (a) closes when tipped over (b) springs back when let go (c) stays where you flip it (d) closes near a magnet
  6. 6.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a reed switch (c) a toggle switch (d) a tilt switch
  7. 7.What does a reed switch do? (a) closes when tipped over (b) springs back when let go (c) closes near a magnet (d) stays where you flip it
  8. 8.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a slide switch
  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.🔘 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
  11. 11.True or false: a reed switch closes when tipped over. (a) True (b) False
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  13. 13.What does a slide switch do? (a) slides side to side (b) works only while pressed (c) closes when tipped over (d) stays where you flip it
  14. 14.True or false: a push button springs back when let go. (a) False (b) True
  15. 15.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  16. 16.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a toggle switch
  17. 17.🔘 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
  18. 18.🔘 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?
  19. 19.🔘 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
  20. 20.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  21. 21.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a tilt switch (c) a push button (d) a toggle switch
  22. 22.🔘 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
  23. 23.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  24. 24.🔘 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?
  25. 25.🔘 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) Yes (b) No
  26. 26.True or false: a toggle switch stays where you flip it. (a) True (b) False
  27. 27.What does a push button do? (a) closes when tipped over (b) works only while pressed (c) stays where you flip it (d) flips up or down
  28. 28.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) opens or closes the loop (d) changes the voltage
  29. 29.🔘 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) No (b) Yes
  30. 30.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a slide switch
  31. 31.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a slide switch (c) a push button (d) a tilt switch
  32. 32.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) when either is ON (c) only when both are OFF (d) only when both are ON
  33. 33.🔘 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
  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 OFF, B is OFF, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  35. 35.True or false: a tilt switch springs back when let go. (a) False (b) True
  36. 36.What does a tilt switch do? (a) flips up or down (b) stays where you flip it (c) slides side to side (d) closes when tipped over
  37. 37.True or false: a push button works only while pressed. (a) False (b) True
  38. 38.🔘 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?
  39. 39.True or false: a slide switch closes near a magnet. (a) False (b) True
  40. 40.🔘 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

Answer key

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

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