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.What does a push button do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) slides side to side
- 2.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) only when both are ON (d) when either is ON
- 3.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a reed switch (c) a tilt switch (d) a push button
- 4.🔘 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
- 5.What does a toggle switch do? (a) stays where you flip it (b) springs back when let go (c) slides side to side (d) closes near a magnet
- 6.🔘 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
- 7.True or false: a push button slides side to side. (a) True (b) False
- 8.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when either is ON (d) when both are OFF
- 9.🔘 When a switch is ON, the circuit is … (a) cut (b) broken (c) closed (d) open
- 10.🔘 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) No (b) Yes
- 11.What does a reed switch do? (a) stays where you flip it (b) closes when tipped over (c) closes near a magnet (d) springs back when let go
- 12.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a slide switch (c) a reed switch (d) a tilt switch
- 13.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a toggle switch (c) a push button (d) a tilt switch
- 14.True or false: a push button works only while pressed. (a) False (b) True
- 15.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a push button
- 16.What does a slide switch do? (a) flips up or down (b) slides side to side (c) closes near a magnet (d) closes when tipped over
- 17.True or false: a tilt switch flips up or down. (a) True (b) False
- 18.🔘 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
- 19.True or false: a toggle switch closes when tipped over. (a) True (b) False
- 20.True or false: a push button closes near a magnet. (a) True (b) False
- 21.🔘 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
- 22.True or false: a slide switch closes when tipped over. (a) False (b) True
- 23.🔘 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?
- 24.🔘 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
- 25.🔘 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
- 26.True or false: a slide switch flips up or down. (a) False (b) True
- 27.🔘 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
- 28.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
- 29.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a toggle switch (d) a tilt switch
- 30.What does a tilt switch do? (a) flips up or down (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
- 31.What does a toggle switch do? (a) flips up or down (b) closes near a magnet (c) slides side to side (d) works only while pressed
- 32.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
- 33.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
- 34.🔘 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
- 35.True or false: a toggle switch stays where you flip it. (a) False (b) True
- 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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
- 37.What does a push button do? (a) slides side to side (b) closes near a magnet (c) flips up or down (d) works only while pressed
- 38.🔘 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?
- 39.🔘 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
- 40.True or false: a push button flips up or down. (a) True (b) False
Answer key
- springs back when let go
- when either is ON
- a push button
- Yes
- stays where you flip it
- Yes
- False
- when both are ON
- closed
- Yes
- closes near a magnet
- a reed switch
- a tilt switch
- True
- a slide switch
- slides side to side
- False
- Yes
- False
- False
- No
- False
- 1
- No
- Yes
- False
- Yes
- Yes
- a toggle switch
- closes when tipped over
- flips up or down
- Yes
- No
- No
- True
- Yes
- works only while pressed
- 1
- Yes
- False
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