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