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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 98 · 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 OFF and B is OFF. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) never (d) when either is ON
  3. 3.True or false: a tilt switch closes when tipped over. (a) False (b) True
  4. 4.True or false: a reed switch closes near a magnet. (a) True (b) False
  5. 5.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) slides side to side (d) works only while pressed
  6. 6.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a slide switch (c) a tilt switch (d) a push button
  7. 7.🔘 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?
  8. 8.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  9. 9.What does a toggle switch do? (a) closes near a magnet (b) stays where you flip it (c) works only while pressed (d) springs back when let go
  10. 10.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) when both are OFF (d) never
  11. 11.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a toggle switch (d) a tilt switch
  12. 12.🔘 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
  13. 13.What does a reed switch do? (a) springs back when let go (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
  14. 14.🔘 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
  15. 15.🔘 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
  16. 16.True or false: a push button works only while pressed. (a) False (b) True
  17. 17.🔘 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
  18. 18.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  19. 19.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a tilt switch (c) a toggle switch (d) a slide switch
  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 ON, B is OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  21. 21.🔘 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
  22. 22.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a push button (c) a slide switch (d) a tilt switch
  23. 23.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) changes the voltage (c) makes electricity (d) stores current
  24. 24.🔘 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?
  25. 25.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) slides side to side (d) works only while pressed
  26. 26.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a reed switch (c) a push button (d) a toggle switch
  27. 27.True or false: a toggle switch flips up or down. (a) False (b) True
  28. 28.🔘 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
  29. 29.🔘 When a switch is ON, the circuit is … (a) cut (b) broken (c) closed (d) open
  30. 30.What does a slide switch do? (a) closes when tipped over (b) stays where you flip it (c) flips up or down (d) slides side to side
  31. 31.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  32. 32.True or false: a slide switch closes when tipped over. (a) False (b) True
  33. 33.🔘 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) No (b) Yes
  34. 34.🔘 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 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 near a magnet. (a) False (b) True
  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 ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  37. 37.True or false: a toggle switch stays where you flip it. (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.🔘 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
  40. 40.🔘 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?

Answer key

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

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