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