PHY 1200 Foundation Physics PDF

PHY 1200 Foundation Physics Measurement of Physical Quantities Mr. Vishal Hemraj What is a measurement? Scientists have established logical rules to govern how they communicate qualitative information to one another. If you want to report the result of a measurement – for example, the distance betw...

PHY 1200 Foundation Physics Measurement of Physical Quantities Mr. Vishal Hemraj What is a measurement? Scientists have established logical rules to govern how they communicate qualitative information to one another. If you want to report the result of a measurement – for example, the distance between two cities, your own weight, or the length of this lecture – you have to specify this result in multiples of a standard unit. (Bauer & Westfield, 2011) What is a measurement? 300 meters A measurement is the combination of a number and a unit that quantifies an object’s property. (Bauer & Westfield, 2011) Types of Measurements Direct measurement Indirect measurement (Bauer & Westfield, 2011)  Types of Measurements Direct measurement is a measurement in case of which the value of a physical quantity in question is obtained directly from the instrument scale. (Bauer & Westfield, 2011)  Types of Measurements Indirect measurement is a measurement in case of which the value being sought for a quantity is calculated by a known relationship (formula) between that quantity and the quantities subject to a direct measurement. (Bauer & Westfield, 2011) What is a Physical Quantity? A physical quantity is the property of an object that can be judged in terms of size, magnitude or amount.  Types of Physical Quantities: 5. Amount of Substance 1. Length 6. Luminous Intensity 2. Mass 7. Current 3. Time 4. Temperature  References Azuan, A. (2020, January 13). Math is Everywhere!!: Topic 1: Indices. Retrieved from Math is Everywhere: http://azimazuan.blogspot.com/2016/06/indices.html Bauer, W., & Westfield, G. D. (2011). Univeristy Physics. New York: McGraw Hill Companies, Inc. Giancoli, D. C. (2014). Physics, Principles with Applications. Boston: Pearson Education Inc. Woodside, R. (2019). Physics: Cambridge Internationa AS and A level (Revision Guide). London: Hachette UK Company.