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