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