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.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
- 2.🔘 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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
- 3.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) opens or closes the loop (d) changes the voltage
- 4.🔘 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?
- 5.🔘 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) Yes (b) No
- 6.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a tilt switch (c) a toggle switch (d) a push button
- 7.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) closes when tipped over (d) stays where you flip it
- 8.🔘 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) Yes (b) No
- 9.🔘 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?
- 10.🔘 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?
- 11.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
- 12.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
- 13.What does a slide switch do? (a) springs back when let go (b) works only while pressed (c) slides side to side (d) stays where you flip it
- 14.🔘 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?
- 15.True or false: a slide switch stays where you flip it. (a) False (b) True
- 16.What does a tilt switch do? (a) slides side to side (b) closes near a magnet (c) springs back when let go (d) closes when tipped over
- 17.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
- 18.🔘 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) No (b) Yes
- 19.True or false: a push button springs back when let go. (a) True (b) False
- 20.🔘 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) No (b) Yes
- 21.True or false: a reed switch slides side to side. (a) False (b) True
- 22.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a push button
- 23.What does a push button do? (a) closes when tipped over (b) closes near a magnet (c) slides side to side (d) springs back when let go
- 24.True or false: a toggle switch flips up or down. (a) False (b) True
- 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
- 26.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a reed switch
- 27.🔘 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
- 28.What does a reed switch do? (a) works only while pressed (b) stays where you flip it (c) flips up or down (d) closes near a magnet
- 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.🔘 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
- 31.🔘 A bulb and a cell are joined through 3 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
- 32.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) only when both are ON (d) when either is ON
- 33.True or false: a reed switch springs back when let go. (a) False (b) True
- 34.True or false: a reed switch closes near a magnet. (a) True (b) False
- 35.What does a push button do? (a) closes near a magnet (b) works only while pressed (c) slides side to side (d) stays where you flip it
- 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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
- 37.🔘 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
- 38.True or false: a toggle switch stays where you flip it. (a) False (b) True
- 39.True or false: a push button slides side to side. (a) False (b) True
- 40.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when either is ON (d) when both are ON
Answer key
- a toggle switch
- No
- opens or closes the loop
- 5
- Yes
- a tilt switch
- stays where you flip it
- Yes
- 1
- 1
- a push button
- a slide switch
- slides side to side
- 6
- False
- closes when tipped over
- a push button
- No
- True
- Yes
- False
- a reed switch
- springs back when let go
- True
- No
- a toggle switch
- Yes
- closes near a magnet
- No
- No
- 3
- when either is ON
- False
- True
- works only while pressed
- No
- Yes
- True
- False
- when both are ON
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