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