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 tilt switch do? (a) closes near a magnet (b) closes when tipped over (c) flips up or down (d) stays where you flip it
- 2.🔘 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?
- 3.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a push button (c) a toggle switch (d) a reed switch
- 4.True or false: a tilt switch closes when tipped over. (a) True (b) False
- 5.🔘 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
- 6.True or false: a toggle switch flips up or down. (a) True (b) False
- 7.What does a reed switch do? (a) works only while pressed (b) stays where you flip it (c) closes when tipped over (d) closes near a magnet
- 8.What does a slide switch do? (a) springs back when let go (b) slides side to side (c) works only while pressed (d) closes when tipped over
- 9.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a push button (c) a slide switch (d) a toggle switch
- 10.True or false: a toggle switch works only while pressed. (a) True (b) False
- 11.🔘 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?
- 12.🔘 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) No (b) Yes
- 13.🔘 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
- 14.True or false: a push button springs back when let go. (a) False (b) True
- 15.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a toggle switch (c) a push button (d) a reed switch
- 16.True or false: a toggle switch closes when tipped over. (a) False (b) True
- 17.🔘 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) No (b) Yes
- 18.🔘 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?
- 19.🔘 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
- 20.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) makes electricity (d) changes the voltage
- 21.What does a push button do? (a) stays where you flip it (b) works only while pressed (c) closes near a magnet (d) closes when tipped over
- 22.What does a toggle switch do? (a) closes near a magnet (b) springs back when let go (c) works only while pressed (d) flips up or down
- 23.True or false: a toggle switch stays where you flip it. (a) True (b) False
- 24.True or false: a push button closes when tipped over. (a) True (b) False
- 25.🔘 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 OFF (d) only when both are ON
- 26.🔘 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
- 27.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a slide switch
- 28.🔘 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) No (b) Yes
- 29.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) cut (d) open
- 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 OFF and B is OFF. Does the bulb glow? (a) Yes (b) No
- 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.🔘 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
- 33.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
- 34.🔘 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?
- 35.🔘 Which kind of switch slides side to side? (a) a push button (b) a slide switch (c) a reed switch (d) a tilt switch
- 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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
- 37.🔘 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?
- 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 OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
- 39.True or false: a toggle switch closes near a magnet. (a) True (b) False
- 40.True or false: a slide switch stays where you flip it. (a) True (b) False
Answer key
- closes when tipped over
- 1
- a toggle switch
- True
- No
- True
- closes near a magnet
- slides side to side
- a push button
- False
- 2
- No
- No
- True
- a push button
- False
- No
- 4
- No
- opens or closes the loop
- works only while pressed
- flips up or down
- True
- False
- when either is ON
- No
- a tilt switch
- Yes
- closed
- No
- No
- Yes
- a toggle switch
- 6
- a slide switch
- Yes
- 1
- Yes
- False
- False
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