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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 777 · 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.True or false: a tilt switch closes near a magnet. (a) True (b) False
  2. 2.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when both are OFF (c) never (d) when either is ON
  3. 3.What does a push button do? (a) closes near a magnet (b) flips up or down (c) stays where you flip it (d) springs back when let go
  4. 4.🔘 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?
  5. 5.What does a slide switch do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) slides side to side
  6. 6.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) stays where you flip it (d) works only while pressed
  7. 7.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  8. 8.True or false: a push button closes when tipped over. (a) False (b) True
  9. 9.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  10. 10.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) never (d) only when both are OFF
  11. 11.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  13. 13.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a push button (c) a toggle switch (d) a slide switch
  14. 14.What does a push button do? (a) stays where you flip it (b) works only while pressed (c) closes when tipped over (d) slides side to side
  15. 15.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a push button (c) a slide switch (d) a reed switch
  16. 16.🔘 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?
  17. 17.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) opens or closes the loop (d) changes the voltage
  18. 18.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  19. 19.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) closed (d) broken
  20. 20.True or false: a tilt switch closes when tipped over. (a) False (b) True
  21. 21.What does a tilt switch do? (a) works only while pressed (b) slides side to side (c) flips up or down (d) closes when tipped over
  22. 22.🔘 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
  23. 23.What does a reed switch do? (a) slides side to side (b) closes near a magnet (c) flips up or down (d) stays where you flip it
  24. 24.True or false: a push button works only while pressed. (a) True (b) False
  25. 25.🔘 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
  26. 26.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.🔘 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) 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 OFF, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  29. 29.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  30. 30.🔘 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?
  31. 31.True or false: a reed switch closes near a magnet. (a) True (b) False
  32. 32.True or false: a toggle switch flips up or down. (a) True (b) False
  33. 33.🔘 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?
  34. 34.True or false: a slide switch slides side to side. (a) False (b) True
  35. 35.True or false: a toggle switch stays where you flip it. (a) False (b) True
  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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  37. 37.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 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
  40. 40.🔘 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

Answer key

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

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