Blog Tag Motion

Rest

Rest: A body is said to be at rest if it does not change its position with respect to a fixed point in its surrounding. When the position of a body with respect to its surrounding does not change with time, the body is said to be at rest Example: A book lying on the table will not change its position if it is not disturbed and will be considered to b . . .

motion

Motion: A moving objects keeps on chnging its position continuously with time with respect to a fixed point called the reference point. When the position of a body with respect to its surrounding changes with time the body is said to be in motion.. Example: When a moving car chnages its position with respect to a tree or a lamp post by the side of th . . .

Rest and Motion are relative

An object can be in motion relative to one set of object while at rest relative to some other set of object. Thus, rest and motion are relative Example: Suppose you are sitting in a room. You are at rest in relation to all other stationary objects inside the room.But the room (or home) is on earth and the earth itself is not at rest. The earth revolv . . .

Different types of Motion

Different object have different type of motion. For example, a train moves straight along its track, a fan rotates, the earth revolves arount the sun. There can be many more such examples. These different kinds of motion can be classified into the following types. Translatory Motion Rotatory Motion Circular Motion Oscillatory Motion Vibrat . . .

Translatory Motion

If an object like a vehicle, moves in a line in such a way that every point of the object moves through the same distance in the same time, then the motion of the object is called translatory motion. Example: When a cycle moves from a position 1 to the position 2.   The motion of an apple falling from a tree.  The motion of . . .

Types of Translatory Motion

Translatory Motion can be of Two types:  Rectilinear Motion  Curvilinear Motion . . .

Rectilinear Motion

If a motion of a body is along a straight line, it is said to be the rectilinear or linear motion. Example: A stone falling straight towards the surface of the earth A car moving on a straight road. A coin moving over a carom board.  . . .

Some examples supports rectilinear motion

The motion of a bullet fired from a gun (up to some distance). March past of the soldiers on a straight road. A boy or a car running on a straight road. . . .

Curvilinear Motion

If a motion of a body is along a curved path it is said to be the curvilinear motion example: The motion of a cycle while taking a turn on the road. A car moving along a curved path. . . .

Rotatory Motion

A body is said to be in rotatory motion. If it moves about a fixed axis Example:  The blades of a fan A spinning top A spinning wheel or a potter's wheel A merry-go-round rotation of the earth about its own axis A rotatory motion is different from a translatory motion, because in rotatory motion, different parts of the obj . . .

Circular Motion

The motion of a body along a circular path is called  circular motion. Circular motion is a special type of curvilinear motion in which the distance of a moving object from a fixed point(called the centre) does not change. example: Motion of a car around a circular path Motion of earth around the sun Motion of moon around the earth . . .

Oscillatory Motion

The to and fro motion of a body from its rest position (or mean position) is called the oscillatory motion.  Example:  The motion of a swing. The motion of the pendulum of a wall clock represent the oscillatory motion  In this motion , the bob of pendulum from its rest position moves to one side, comes back  to th . . .

Vibratory Motion

It is also an oscillatory motion with the difference that in vibratory motion, A part of the body always remains fixed and the rest part moves to and fro about its mean position. During the vibratory motion, the shape and size of the body changes. Examples: When we breath, our chest expands and contracts. This motion is the vibratory motion. . . .

Periodic Motion

A motion which gets repeated after a regular interval of time is called the periodic motion Example: The earth completes one round about the sun in nearly 365 days and this motion is repeated after every 365 days. The moon revolves around the earth and completes one round in nearly 27 days and then repeats its motion. For a normal person he . . .

Non-Periodic Motion

The motion which does not repeat itself after the regular interval of time is called non-periodic motion. Example:  A footballer running on a field Application of breaks in a moving vehicle A ball rolling down the ground gradually slows down and finally stops. motion of tides in the sea. . . .

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