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