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