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Hi

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Physics Motion part 2 (Path, Length & Displacement) CBSE class 9 IX

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In physics, motion is a change in position of an object over time.

MOTION CAN BE UNIFORM OR NON- UNIFORM.
UNIFORM-  If a body travels equal distance in equal interval of time then we call it to be in uniform motion.
NON-UNIFORM - Non uniform motion is when an object travels unequal distances in equal periods of time.

THERE IS A DIFFERENCE BETWEEN DISTANCE AND DISPLACEMENT.
DISTANCE-  | Distance refers to the amount of space between two points, measured along the actual path, linking them.
DISPLACEMENT-  Displacement refers to the amount of space between the two points, measured along the minimum path linking them.

SPEED -
The distance travelled by a body in the given time is called speed.

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What is biconvex lens?
What is differend between convex and biconvex lens?

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States of matter | States of matter and intermolecular forces | Chemistry | Khan Academy

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In physics, motion is a change in position of an object over time. Motion is described in terms of displacement, distance, velocity, acceleration, time, and speed. Motion of a body is observed by attaching a frame of reference to an observer and measuring the change in position of the body relative to that frame.

If the position of a body is not changing with respect to a given frame of reference(reference point), the body is said to be at rest, motionless, immobile, stationary, or to have constant (time-invariant) position. An object's motion cannot change unless it is acted upon by a force, as described. Momentum is a quantity which is used for measuring the motion of an object. An object's momentum is directly related to the object's mass and velocity, and the total momentum of all objects in an isolated system (one not affected by external forces) does not change with time, as described by the law of conservation of momentum.

As there is no absolute frame of reference, absolute motion cannot be determined.[1] Thus, everything in the universe can be considered to be moving.[2]:20–21

Motion applies to objects, bodies, and matter particles, to radiation, radiation fields and radiation particles, and to space, its curvature and space-time. One can also speak of motion of shapes and boundaries. So, the term motion, in general, signifies a continuous change in the configuration of a physical system. For example, one can talk about motion of a wave or about motion of a quantum particle, where the configuration consists of probabilities of occupying specific positions.

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where is all the antimatter | where did matter come from | universe unsolved mysteries

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https://youtu.be/rZo8-ihCA9E

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https://www.youtube.com/watch?v=bYgfwuJnpgU

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Velocity - Motion - Physics - Class 9/IX - ISCE,CBSE

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States of Matter (solids, liquids and gases) | Properties of Matter | Chemistry | FuseSchool

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Calculating average velocity or speed | One-dimensional motion | Physics | Khan Academy

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Uniform Motion and Non-uniform Motion | Physics | Don't Memorise

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A plasma is a hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons. The characteristics of plasmas are significantly different from those of ordinary neutral gases so that plasmas are considered a distinct "fourth state of matter."

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plasmastate

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hi

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We owe our existence to the triumph of matter over antimatter. For every billion particles of antimatter there were a billion and one particles of matter and it was the one extra particle in each volume that was enough to build the universe.

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Life in The Universe Documentary | HD 1080p

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click on video down
its best vide

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ये क्या कह दिया Apple के CO-FOUNDER WOZNIAK ने भारत के बारे में! Case Study Video ! Dr. Ujjawa Patni

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ब्रह्माण्ड की शुरुआत - हिला देने वाली कहानी  | The Big Bang - The Biggest Theory in Science

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imagination is more important than knowledge ..