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