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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 999 · 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.🔘 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
  2. 2.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  3. 3.🔘 Which kind of switch springs back when let go? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
  4. 4.True or false: a tilt switch closes when tipped over. (a) False (b) True
  5. 5.🔘 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) No (b) Yes
  6. 6.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
  7. 7.🔘 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?
  8. 8.What does a push button do? (a) flips up or down (b) works only while pressed (c) slides side to side (d) stays where you flip it
  9. 9.🔘 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) No (b) Yes
  10. 10.🔘 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
  11. 11.True or false: a reed switch works only while pressed. (a) False (b) True
  12. 12.What does a reed switch do? (a) works only while pressed (b) stays where you flip it (c) closes when tipped over (d) closes near a magnet
  13. 13.True or false: a slide switch works only while pressed. (a) False (b) True
  14. 14.What does a toggle switch do? (a) closes near a magnet (b) works only while pressed (c) slides side to side (d) flips up or down
  15. 15.True or false: a push button works only while pressed. (a) True (b) False
  16. 16.What does a push button do? (a) closes when tipped over (b) flips up or down (c) springs back when let go (d) stays where you flip it
  17. 17.🔘 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
  18. 18.True or false: a reed switch closes when tipped over. (a) False (b) True
  19. 19.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  20. 20.🔘 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?
  21. 21.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) changes the voltage (d) opens or closes the loop
  22. 22.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a push button (c) a tilt switch (d) a reed switch
  23. 23.🔘 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
  24. 24.True or false: a slide switch slides side to side. (a) True (b) False
  25. 25.What does a tilt switch do? (a) closes near a magnet (b) works only while pressed (c) springs back when let go (d) closes when tipped over
  26. 26.What does a toggle switch do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
  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.🔘 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
  29. 29.🔘 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) 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 OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  31. 31.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a push button (c) a reed switch (d) a tilt switch
  32. 32.True or false: a toggle switch closes near a magnet. (a) False (b) True
  33. 33.🔘 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
  34. 34.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  35. 35.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when both are ON (d) when either is ON
  36. 36.🔘 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
  37. 37.🔘 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) No (b) Yes
  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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  39. 39.True or false: a reed switch flips up or down. (a) True (b) False
  40. 40.🔘 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?

Answer key

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

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