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