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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 184 · 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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 Which kind of switch springs back when let go? (a) a push button (b) a reed switch (c) a tilt switch (d) a slide switch
  3. 3.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) broken (d) cut
  4. 4.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
  5. 5.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a tilt switch
  6. 6.🔘 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?
  7. 7.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
  8. 8.What does a slide switch do? (a) slides side to side (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  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.🔘 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 ON, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  11. 11.What does a tilt switch do? (a) closes near a magnet (b) closes when tipped over (c) stays where you flip it (d) flips up or down
  12. 12.🔘 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?
  13. 13.What does a push button do? (a) works only while pressed (b) stays where you flip it (c) closes when tipped over (d) closes near a magnet
  14. 14.What does a toggle switch do? (a) springs back when let go (b) flips up or down (c) slides side to side (d) works only while pressed
  15. 15.True or false: a toggle switch stays where you flip it. (a) False (b) True
  16. 16.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a toggle switch (c) a push button (d) a reed switch
  17. 17.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  18. 18.🔘 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 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) Yes (b) No
  21. 21.True or false: a tilt switch closes when tipped over. (a) True (b) False
  22. 22.What does a push button do? (a) springs back when let go (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  23. 23.🔘 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
  24. 24.True or false: a push button works only while pressed. (a) True (b) False
  25. 25.What does a toggle switch do? (a) closes near a magnet (b) closes when tipped over (c) stays where you flip it (d) springs back when let go
  26. 26.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  27. 27.🔘 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?
  28. 28.🔘 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?
  29. 29.What does a reed switch do? (a) stays where you flip it (b) flips up or down (c) closes near a magnet (d) slides side to side
  30. 30.True or false: a toggle switch springs back when let go. (a) True (b) False
  31. 31.🔘 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) No (b) Yes
  32. 32.True or false: a reed switch closes near a magnet. (a) True (b) False
  33. 33.True or false: a push button closes when tipped over. (a) True (b) False
  34. 34.🔘 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
  35. 35.True or false: a push button stays where you flip it. (a) True (b) False
  36. 36.🔘 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) Yes (b) No
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  38. 38.🔘 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 ON (d) only when both are OFF
  39. 39.True or false: a toggle switch works only while pressed. (a) True (b) False
  40. 40.🔘 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) No (b) Yes

Answer key

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

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