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 toggle switch do? (a) springs back when let go (b) closes near a magnet (c) works only while pressed (d) stays where you flip it
- 2.What does a push button do? (a) works only while pressed (b) closes near a magnet (c) stays where you flip it (d) flips up or down
- 3.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
- 4.🔘 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?
- 5.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
- 6.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when either is ON (d) when both are ON
- 7.🔘 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
- 8.What does a tilt switch do? (a) flips up or down (b) springs back when let go (c) works only while pressed (d) closes when tipped over
- 9.🔘 A bulb and a cell are joined through 3 switches on 3 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?
- 10.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) opens or closes the loop (d) stores current
- 11.What does a slide switch do? (a) stays where you flip it (b) works only while pressed (c) flips up or down (d) slides side to side
- 12.What does a toggle switch do? (a) slides side to side (b) flips up or down (c) springs back when let go (d) works only while pressed
- 13.🔘 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?
- 14.🔘 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) Yes (b) No
- 15.True or false: a tilt switch springs back when let go. (a) False (b) True
- 16.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
- 17.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
- 18.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) only when both are OFF (d) when either is ON
- 19.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
- 20.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
- 21.🔘 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
- 22.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a tilt switch (c) a push button (d) a reed switch
- 23.True or false: a reed switch stays where you flip it. (a) True (b) False
- 24.🔘 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 OFF, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
- 25.🔘 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
- 26.🔘 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
- 27.What does a reed switch do? (a) stays where you flip it (b) flips up or down (c) springs back when let go (d) closes near a magnet
- 28.True or false: a reed switch closes near a magnet. (a) True (b) False
- 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 ON, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
- 30.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
- 31.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
- 32.🔘 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
- 33.True or false: a tilt switch works only while pressed. (a) True (b) False
- 34.True or false: a tilt switch slides side to side. (a) True (b) False
- 35.True or false: a tilt switch stays where you flip it. (a) False (b) True
- 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
- 37.🔘 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?
- 38.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
- 39.🔘 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
- 40.True or false: a slide switch flips up or down. (a) True (b) False
Answer key
- stays where you flip it
- works only while pressed
- a toggle switch
- 2
- a push button
- when both are ON
- No
- closes when tipped over
- 1
- opens or closes the loop
- slides side to side
- flips up or down
- 4
- Yes
- False
- a toggle switch
- closed
- when either is ON
- No
- No
- No
- a slide switch
- False
- Yes
- No
- No
- closes near a magnet
- True
- Yes
- No
- a push button
- Yes
- False
- False
- False
- Yes
- 5
- Yes
- Yes
- False
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