Physics one liners for various competitive examinations

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Physics one-liners for various competitive examinations


Welcome to Physics Section page.

We know the importance of general awareness, GK (General Knowledge) in various competitive exams for aspirants.

We are publishing general awareness notes and study material on various subjects daily.

These Physics notes are extremely useful for all exams including Bank Exams.

Watch Physics One-Liners

1- Centripetal acceleration– A particle executing uniform circular motion undergoes a continuous change in the direction of its velocity which results in an acceleration directed towards the center of the circle is called Centripetal acceleration.

2- An imaginary coordinate system which is either at rest or in uniform motion and where Newton’s Laws are valid is called an inertial frame of reference.

3- An imaginary coordinate system which is attached to a rotating or accelerated body where Newton’s Laws are not valid is called non-inertial frame of reference.

4- The to and fro motion of a particle about a mean position on a fixed path such that the acceleration of the particle is always directed towards the mean position and directly proportional to the displacement of the particle from its mean position is called a simple harmonic motion.

5- The angle through which the radius vector rotates in a given time is called angular displacement. Its units are radians.

6- The rate of angular displacement of a body is called angular velocity. Its units are radian/ second.

7- The Centripetal force is that force which acts at right angles to the motion of the body and causes it to move in a circular path. It is a pseudo force.

8- Any motion that repeats itself along the path in equal intervals of time is called a periodic motion.

9-Since centrifugal force cannot be associated with any object or agent, it is called a fictitious force.

10- If a particle in periodic motion moves back and forth over the same path, then its motion becomes an oscillatory or vibratory motion.

11- A Centrifuge is a machine used to separate heavier particles from lighter particles from a given mixture.

12- The principle of launching an artificial satellite into a proper space orbit is to impart sufficient initial horizontal speed such that it revolves around the Earth at a height. 


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