Kerala SSLC Physics case studies
Kerala SSLC Physics · Put your knowledge to work in context.
The Kerala SSLC Physics examination is the physics component of the Secondary School Leaving Certificate, the school-leaving certification taken at the end of Class 10 in Kerala. It is intended for students completing the state syllabus under the Kerala Board of Higher Secondary Education and for private or repeat candidates preparing for the same paper. The Kerala SSLC Physics case studies are 5 cases and about 3,450 words.
1A Blown Fuse in a Kitchen Circuit: Protection or Overload?
A household kitchen circuit is wired with 1.5 mm² copper cable, which the electrician's chart rates at 14 A continuous. The circuit is protected by a 15 A cartridge fuse and feeds three socket outlets.
721 words, about 4 min2Making an Electromagnet Lift Three Times Its Load
A scrap dealer lifts iron scrap with an electromagnet built from a 12 V battery, a switch and a solenoid of 300 turns wound on a soft-iron core. The coil uses 1.0 mm² enamelled copper wire, whose safe continuous current is 4 A; its measured resistance is 6 Ω, so it draws 2 A and lifts 30 kg.
722 words, about 4 min3The Concave Mirror That Would Not Focus
In a school laboratory a student must project a magnified image of a small candle flame onto a white card using a concave mirror of focal length 15 cm. He sets the candle 10 cm in front of the mirror and searches for the image with the card at distances between 20 cm and 40 cm in front of the mirror.
694 words, about 3 min4The Milk-in-Water Sky: When More Scattering Ruins the Blue
For a science exhibition a student fills a rectangular glass tank with clean water and sends a narrow beam from a white LED torch through it, viewing the beam from the side against a black cloth. With pure water the beam is practically invisible from the side, and the spot on the far wall is white.
692 words, about 3 min5The Resonance Tube That Gave 327.7 m/s
In the physics practical examination a candidate is given a resonance tube, a set of tuning forks and a metre scale. With the fork marked 512 Hz she finds the first resonance at 16.0 cm and the second at 49.0 cm, both measured at the water level with the tube held vertically.
621 words, about 3 min