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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 521 · 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 push button do? (a) closes when tipped over (b) springs back when let go (c) closes near a magnet (d) slides side to side
  2. 2.🔘 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?
  3. 3.🔘 A bulb and a cell are joined through 2 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  4. 4.🔘 Which kind of switch flips up or down? (a) a push button (b) a toggle switch (c) a tilt switch (d) a reed switch
  5. 5.🔘 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?
  6. 6.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) flips up or down (d) closes near a magnet
  7. 7.🔘 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) Yes (b) No
  8. 8.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a push button
  9. 9.🔘 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?
  10. 10.True or false: a push button springs back when let go. (a) True (b) False
  11. 11.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
  12. 12.🔘 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) No (b) Yes
  13. 13.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) only when both are OFF (d) when either is ON
  14. 14.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when both are ON (d) when either is ON
  15. 15.True or false: a toggle switch springs back when let go. (a) True (b) False
  16. 16.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) open (d) cut
  17. 17.🔘 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) Yes (b) No
  18. 18.What does a reed switch do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  19. 19.What does a push button do? (a) slides side to side (b) closes near a magnet (c) flips up or down (d) works only while pressed
  20. 20.🔘 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
  21. 21.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  22. 22.What does a tilt switch do? (a) closes near a magnet (b) works only while pressed (c) closes when tipped over (d) flips up or down
  23. 23.True or false: a slide switch closes near a magnet. (a) True (b) False
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  25. 25.True or false: a reed switch stays where you flip it. (a) True (b) False
  26. 26.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) changes the voltage (d) makes electricity
  27. 27.🔘 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) No (b) Yes
  28. 28.True or false: a tilt switch closes when tipped over. (a) True (b) False
  29. 29.🔘 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
  30. 30.🔘 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
  31. 31.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  32. 32.What does a toggle switch do? (a) closes when tipped over (b) stays where you flip it (c) slides side to side (d) works only while pressed
  33. 33.True or false: a slide switch stays where you flip it. (a) True (b) False
  34. 34.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a slide switch
  35. 35.True or false: a toggle switch flips up or down. (a) True (b) False
  36. 36.🔘 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
  37. 37.🔘 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) Yes (b) No
  38. 38.🔘 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
  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.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a tilt switch

Answer key

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

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