Electronics Worksheet: Switches in a Circuit
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.🔘 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) No (b) Yes
- 2.What does a reed switch do? (a) flips up or down (b) closes near a magnet (c) closes when tipped over (d) springs back when let go
- 3.What does a toggle switch do? (a) works only while pressed (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
- 4.🔘 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
- 5.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a push button (c) a slide switch (d) a reed switch
- 6.🔘 Which kind of switch flips up or down? (a) a push button (b) a tilt switch (c) a toggle switch (d) a slide switch
- 7.True or false: a tilt switch stays where you flip it. (a) False (b) True
- 8.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) closed (d) cut
- 9.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
- 10.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) closes near a magnet (d) closes when tipped over
- 11.🔘 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
- 12.What does a toggle switch do? (a) closes near a magnet (b) slides side to side (c) flips up or down (d) springs back when let go
- 13.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
- 14.True or false: a toggle switch closes when tipped over. (a) True (b) False
- 15.What does a tilt switch do? (a) closes when tipped over (b) slides side to side (c) flips up or down (d) stays where you flip it
- 16.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
- 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 OFF, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
- 18.🔘 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?
- 19.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
- 20.🔘 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?
- 21.True or false: a reed switch closes near a magnet. (a) False (b) True
- 22.True or false: a tilt switch springs back when let go. (a) False (b) True
- 23.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a push button
- 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 ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
- 25.What does a push button do? (a) flips up or down (b) slides side to side (c) stays where you flip it (d) works only while pressed
- 26.🔘 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
- 27.True or false: a toggle switch stays where you flip it. (a) False (b) True
- 28.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
- 29.True or false: a push button closes when tipped over. (a) False (b) True
- 30.🔘 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
- 31.What does a push button do? (a) slides side to side (b) springs back when let go (c) closes near a magnet (d) stays where you flip it
- 32.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
- 33.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a push button
- 34.🔘 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
- 35.🔘 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?
- 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 OFF. Does the bulb glow? (a) Yes (b) No
- 37.True or false: a reed switch flips up or down. (a) True (b) False
- 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
- 39.True or false: a push button springs back when let go. (a) False (b) True
- 40.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) only when both are ON (c) never (d) when either is ON
Answer key
- No
- closes near a magnet
- stays where you flip it
- Yes
- a toggle switch
- a toggle switch
- False
- closed
- Yes
- slides side to side
- Yes
- flips up or down
- Yes
- False
- closes when tipped over
- Yes
- Yes
- 1
- a reed switch
- 1
- True
- False
- a push button
- Yes
- works only while pressed
- No
- True
- a push button
- False
- No
- springs back when let go
- No
- a slide switch
- when both are ON
- 4
- No
- False
- No
- True
- when either is ON
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