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