Experimental Skills
Physics is learnt in a laboratory as much as in a book.
- You read a scale to the last division, find the error in a result, and draw the line that best fits your readings.
- Then you carry out the standard experiments one by one.
- They are Young's modulus of a wire, surface tension, viscosity, specific heat, the speed of sound, Ohm's law, the metre bridge, the potentiometer, lenses, a prism and a diode.
- The chapter serves JEE Main, KCET, the practical examinations of the boards, A-Level and IB.
- Python fits the lines and works out the errors from the readings.
Part of Physics · High School (11–12) (chapter 28)
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Measuring Instruments, Errors and the Best-Fit Line
The first skills of every experiment. Read a vernier scale and a screw gauge, with their least counts and zero errors. Round a result to the right number of significant figures and find its error. Then fit a straight line to the readings of a simple pendulum.
Experiments with Wires, Liquids, Heat and Sound
The standard experiments on matter. Stretch a wire in Searle's apparatus, lift water in a capillary tube and drop a ball through oil. Then mix hot and cold bodies in a calorimeter, follow a cooling curve, and find the speed of sound with a resonance tube.