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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 231 · 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 switch do in a circuit? (a) stores current (b) makes electricity (c) changes the voltage (d) opens or closes the loop
  2. 2.What does a reed switch do? (a) works only while pressed (b) stays where you flip it (c) closes near a magnet (d) closes when tipped over
  3. 3.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a toggle switch
  4. 4.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  5. 5.What does a slide switch do? (a) closes when tipped over (b) closes near a magnet (c) flips up or down (d) slides side to side
  6. 6.🔘 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) Yes (b) No
  7. 7.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a toggle switch (d) a tilt switch
  8. 8.🔘 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
  9. 9.🔘 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
  10. 10.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  11. 11.🔘 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) Yes (b) No
  12. 12.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a reed switch
  13. 13.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) when either is ON (d) only when both are ON
  14. 14.🔘 Which kind of switch flips up or down? (a) a push button (b) a tilt switch (c) a reed switch (d) a toggle switch
  15. 15.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a reed switch
  16. 16.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) open (d) cut
  17. 17.What does a toggle switch do? (a) flips up or down (b) closes near a magnet (c) springs back when let go (d) works only while pressed
  18. 18.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when either is ON (d) when both are ON
  19. 19.🔘 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?
  20. 20.True or false: a push button works only while pressed. (a) True (b) False
  21. 21.What does a push button do? (a) springs back when let go (b) flips up or down (c) stays where you flip it (d) closes near a magnet
  22. 22.🔘 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
  23. 23.True or false: a push button springs back when let go. (a) True (b) False
  24. 24.What does a toggle switch do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) stays where you flip it
  25. 25.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a tilt switch (c) a reed switch (d) a slide switch
  26. 26.What does a tilt switch do? (a) springs back when let go (b) closes when tipped over (c) flips up or down (d) stays where you flip it
  27. 27.🔘 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?
  28. 28.True or false: a slide switch slides side to side. (a) False (b) True
  29. 29.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.🔘 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
  31. 31.🔘 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
  32. 32.True or false: a tilt switch flips up or down. (a) True (b) False
  33. 33.🔘 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?
  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 ON, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  35. 35.True or false: a tilt switch closes when tipped over. (a) False (b) True
  36. 36.True or false: a reed switch stays where you flip it. (a) True (b) False
  37. 37.🔘 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?
  38. 38.🔘 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
  39. 39.🔘 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?
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes

Answer key

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

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