Question

types of motions 9std give examples​

Answer 1

Answer:

The motion of an object shows its changing position, as discussed earlier. But varying objects show varying types of motion. Like for example, a fan is said to be in motion though it is static in its place or a hanging clock that shows motion though it is hanging in its position. We say that motion is mainly of three types: Rectilinear Motion, Circular Motion and Periodic Motion.

Step-by-step explanation:

In a rectilinear motion, all the objects move along a single line. Some common examples of rectilinear motion are marching soldiers, moving cars, and moving animals. The common thing in all these examples is that they move in a single line.

Circular Motion

Have you noticed the motion of a fan? Some objects are moving even though they are fixed at some position. Here the fan undergoes circular motion. In the circular motion, the objects follow a circular path of motion without changing their position. It is the circular movement of fan that results in cool air. Some more examples of circular motion are the motion of a Ferry wheel, satellites and rotation of planets around the sun.

Periodic Motion

Have you ever seen a clock’s pendulum? It repeats its movement after a specific time. Physically the pendulum isn’t moving. It is fixed to some point, yet it shows motion. This kind of motion that repeats after a specific period of time is known as periodic motion. In the periodic motion, the movement made by these objects is called oscillation.

Solved Examples for You

Question: The motion of train and car belongs to:

Translatory motion

Rotatory motion

To and fro motion

Spin motion

Solution: Option A. Trains and cars normally move along straight tracks and roads. So their motion is mostly translatory motion. Unless the track or the road is a perfect circle, the motion is not rotatory or to and fro. Thus our answer is the translatory motion.

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