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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 208 · 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) only when both are OFF (b) never (c) when either is ON (d) only when both are ON
  2. 2.🔘 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?
  3. 3.🔘 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?
  4. 4.True or false: a reed switch flips up or down. (a) False (b) True
  5. 5.What does a tilt switch do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) stays where you flip it
  6. 6.🔘 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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  7. 7.True or false: a push button flips up or down. (a) True (b) False
  8. 8.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a tilt switch
  9. 9.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  10. 10.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  11. 11.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  12. 12.🔘 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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  13. 13.True or false: a toggle switch flips up or down. (a) False (b) True
  14. 14.What does a toggle switch do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) slides side to side
  15. 15.What does a slide switch do? (a) stays where you flip it (b) closes near a magnet (c) closes when tipped over (d) slides side to side
  16. 16.What does a push button do? (a) slides side to side (b) works only while pressed (c) closes when tipped over (d) flips up or down
  17. 17.What does a push button do? (a) closes near a magnet (b) slides side to side (c) stays where you flip it (d) springs back when let go
  18. 18.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) closed (d) broken
  19. 19.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are ON (d) when both are OFF
  20. 20.What does a reed switch do? (a) closes when tipped over (b) springs back when let go (c) flips up or down (d) closes near a magnet
  21. 21.🔘 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?
  22. 22.🔘 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
  23. 23.🔘 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?
  24. 24.True or false: a tilt switch works only while pressed. (a) True (b) False
  25. 25.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  26. 26.🔘 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) Yes (b) No
  27. 27.🔘 Which kind of switch springs back when let go? (a) a push button (b) a slide switch (c) a toggle switch (d) a tilt switch
  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 OFF. Does the bulb glow? (a) No (b) Yes
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) works only while pressed (d) flips up or down
  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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  32. 32.🔘 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?
  33. 33.🔘 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
  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 ON. Does the bulb glow? (a) Yes (b) No
  35. 35.🔘 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?
  36. 36.🔘 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) Yes (b) No
  37. 37.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) changes the voltage (c) makes electricity (d) stores current
  38. 38.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  39. 39.🔘 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
  40. 40.True or false: a slide switch works only while pressed. (a) False (b) True

Answer key

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

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