pankil aggarwal and avdhesh sharma
TRANSCRIPT
By: PANKIL AGGARWAL AND AVDHESH SHARMA & gurvinder kaur
What is Physics?Physics expands our life - you can find it in the water, in the sky or on the earth .
it's much important as air and water.
Without IT, we can’t live or life was not possible.
Physics is involved in everything around us - whether we Eat,play or see.
Physics plays a crucial role in our life.It’s a subject that teaches the principle behind what we do daily in our life.
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Physics and Quantum Physics and Quantum MechanicsMechanics
Physics deals with the nature and properties of matter and energy. Physics is based on experimental observations and quantitative measurements.
Mechanics deals with the motion and equilibrium of material bodies and the action of forces.
Too small: atoms and subatomic particles – Quantum Mechanics
Too fast: objects close to the speed of light – Special Relativity
Too dense: black holes, the early Universe – General Relativity
Physics is related to our life in many ways, Some of the common example are as follow:
When we walk or run, our motion is part of laws of mechanics
We eat food which undergoes chemical reactions producing heat energy which is converted into mechanical energy
Use of refrigerator, pressure cookers, washing machines, television, music system, computers, etc. are all designed on the principles of physics.
When we speak, we produce sound properties of which like pitch and intensity are studied in physics
What is relativity? What is relativity? The study of motion of any entity of
universe in different frame of references, is relativity.
Types of relativity: relativity occurs in everything that exists in universe.
Space relativity:- Here different objects have different observations in different frame of references.
Time relativity:- Time measured in different frame of references is different.
Space relativity in general Space relativity in general lifelife
In Aircraft:-For a man on earth, the man playing with a ball in aircraft is moving but for the man in a aircraft he (himself) is at rest.
In rainy days (When we are walking):- When we see in sky rain seems to fall vertically over head as shown below:
• In rainy days (when we are at rest):- When we are at rest and see rain
falling , we see rain is falling at some angle with respect to vertical.
Time relativity in general Time relativity in general life life
• Time plays a crucial role in our life. e.g:- A funny example related with students.
When students read with interest, they find a 45 min. lecture passing in 10 min., but when they are interested in reading they find a min. of lecture like an hour,this is the best way to understand time
relativity.
A Very familiar example A Very familiar example Our role model Aamir used the physics on
his body.
ConclusionConclusionAlways remember that, all that you see,
might not be same for others because all things in universe are relative.