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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 580 · 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 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) No (b) Yes
  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 OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  3. 3.What does a slide switch do? (a) closes when tipped over (b) flips up or down (c) closes near a magnet (d) slides side to side
  4. 4.🔘 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?
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) never (c) only when both are OFF (d) only when both are ON
  6. 6.🔘 Which kind of switch springs back when let go? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  7. 7.True or false: a push button springs back when let go. (a) True (b) False
  8. 8.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a push button (c) a slide switch (d) a tilt switch
  9. 9.What does a toggle switch do? (a) works only while pressed (b) springs back when let go (c) stays where you flip it (d) slides side to side
  10. 10.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
  11. 11.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  12. 12.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  13. 13.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are OFF (d) when both are ON
  14. 14.🔘 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
  15. 15.🔘 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
  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 OFF. Does the bulb glow? (a) Yes (b) No
  17. 17.True or false: a toggle switch stays where you flip it. (a) True (b) False
  18. 18.🔘 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?
  19. 19.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  20. 20.What does a push button do? (a) closes when tipped over (b) slides side to side (c) works only while pressed (d) flips up or down
  21. 21.🔘 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) No (b) Yes
  22. 22.🔘 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
  23. 23.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) springs back when let go (d) slides side to side
  24. 24.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
  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 OFF. Does the bulb glow? (a) No (b) Yes
  26. 26.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  27. 27.True or false: a reed switch closes near a magnet. (a) True (b) False
  28. 28.What does a tilt switch do? (a) springs back when let go (b) slides side to side (c) closes when tipped over (d) closes near a magnet
  29. 29.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  30. 30.What does a push button do? (a) flips up or down (b) closes near a magnet (c) stays where you flip it (d) springs back when let go
  31. 31.True or false: a reed switch closes when tipped over. (a) True (b) False
  32. 32.True or false: a toggle switch closes near a magnet. (a) True (b) False
  33. 33.True or false: a toggle switch flips up or down. (a) False (b) True
  34. 34.🔘 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
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 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
  37. 37.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) works only while pressed (d) flips up or down
  38. 38.🔘 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?
  39. 39.🔘 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?
  40. 40.🔘 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) Yes (b) No

Answer key

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

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