18. What are the different types of motion ? Explain with examples.
Answers
Answer:In the world of mechanics, there are four basic types of motion. These four are rotary, oscillating, linear and circular.
Explanation:We might have noticed that different objects move differently. Some objects move in a curved path, some in a straight path and a few others in a different way. According to the nature of the movement, motion is classified into three types as follows:
Linear Motion
Rotary Motion
Oscillatory Motion
circular motion
Linear Motion
In linear motion, the particles move from one point to another in either a straight line or a curved path. The linear motion depending on the path of motion is further divided as follows:
i)Rectilinear Motion – The path of the motion is a straight line.
ii)Curvilinear Motion – The path of the motion is curved.
A few examples of linear motion are the motion of the train, football, the motion of a car on the road, etc.
Rotatory Motion
Rotatory motion is the motion that occurs when a body rotates on its own axis. A few examples of the rotatory motion are as follows:
The motion of the earth about its own axis around the sun is an example of rotary motion.
While driving a car, the motion of wheels and the steering wheel about its own axis is an example of rotatory motion.
Oscillatory Motion
Oscillatory motion is the motion of a body about its mean position. A few examples of oscillatory motion are
When a child on a swing is pushed, the swing moves to and fro about its mean position.
The pendulum of a clock exhibits oscillatory motion as it moves to and fro about its mean position.
The string of the guitar when strummed moves to and fro by its mean position resulting in an oscillatory motion.
Circular Motion
Circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation.
Examples Of Motion
Now let us understand motion clearly with the help of a few examples.
EXAMPLES OF DIFFERENT TYPES OF MOTION - EXAMPLE
Types of Motion Examples
1)Rectilinear: a)March past by the soldiers in straight line.
b)Motion of falling objects from certain height
2)Circular: a) Motion of satellites around planets.
b) Motion of car turning to a curved track
3)Rotational: a) Motion of giant wheel
b) Motion of wheels of moving vehicle
4)Periodic: a) Motion of simple pendulum
b) Motion of Earth on its own axis
a)Our daily activities, like walking, running, closing the door, etc. involve motion. There is a change of position of the object involved in these activities.
b)The flow of air in and out of our lungs is also an example of motion.
c)The automobiles that carry passengers from the place of pick up to the destination possess motion. In this case, the position of passengers is changed from one place to another.