What is Motion
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MOTION AND ITS TYPES...
By : Yashika GuptaClass: IX-A
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What is motion? Definition..
When a body is continuously its position with respect to the frame of reference; then we say that the body is in motion
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SCALARS AND VECTORS
The motion of objects can be described by words such as distance ,displacement, speed ,velocity , and acceleration.
These mathematical quantities which are used to describes the motion of objects can be divided into two categories . The quantity is either a vector or a scalar . These two categories can be distinguished from one another by their distinct definitions
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What are the different types of motion?
Linear motion Curvilinear motion (circular)
1.Rotatory motion
2.Revolution motion
Oscillatory motion
Reciprocatory motion (vibration)
Brownian motion
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Linear Motion It can be described mathematically using only one spatial dimension. It can be Uniform, that is with constant velocity or non- uniform , that is,
with a variable velocity. The average velocity v during a finite time span of a particle undergoing
linear motion is equal to :- v= D/ T
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Linear Motion When a body moves in a straight line then the linear motion or
rectilinear motion. The motion of a particle (point –like object ) along the line can be described by
its position x , which varies with t (time).
Example:-
An athlete running a 100meter race along a straight track is said to be a linear motion or rectilinear motion.
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Oscillatory Motion Oscillatory motion : A body is said to be in oscillatory motion when it swings to and fro
about a mean position. Example: the pendulum of a clock . the swing etc.,
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Curvilinear Motion
When a moves along a curved path then the motion is called curvilinear motion
There are two types of curvilinear motion:-
1. Rotatory motion
2. Revolution motion
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Thank you