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