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