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| + | ===== Notes (Muhammad Ali Malik) ===== | ||
| + | Notes of " | ||
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| + | Physics is the branch of science that deals with matter, energy and the relationship between them. The study of physics involves laws of motion, the structure of space and time, the nature and types of forces, the interaction between different particles, the interaction of radiation ...[[FSc: | ||
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| + | The physical quantities that are completely described by magnitude with proper unit are called scalars.The physical quantities that are completely described by magnitude with proper unit and direction are called ...[[FSc: | ||
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| + | The change in position of the body from its initial to final position is called displacement. The displacement can also be described as the minimum distance between two points.It is a vector quantity and its direction is from initial point to the final point. The SI unit of displacement is ...[[FSc: | ||
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| + | The work done by a constant force is defined as The product of magnitude of displacement and | ||
| + | the component of the force in the direction of the ...[[FSc: | ||
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| + | When a body is moving in a circle, its motion is called circular motion.The angle through which a particle moves in a certain interval of time, while moving in a circle, is called its angular displacement. It is denoted by βΞΈβ. The angular displacement is a vector quantity and its SI unit is ...[[FSc: | ||
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| + | A substance that can flow is called fluid e.g. Liquid, Gases.The study of properties of fluids at rest is known as fluid statics.The study of property of fluids in motion is known as fluid dynamics.The study of fluids in motion is relatively ...[[FSc: | ||
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| + | To and fro motion of a body about a fixed point is called the vibratory or oscillatory motion. For an object attached to an elastic spring, the displacement of the object from mean position is directly proportional to the applied ...[[FSc: | ||
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| + | Wave is the disturbance produced in a medium which is used to transport energy from one point to another without transporting matter.The waves which require any medium for their propagation by the oscillation of material particles are called ...[[FSc: | ||
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