30. Can you think of some objects which are exhibiting more than one type of motion? Also mention the type of motion in them. *
Answers
Answer:
Linear motion is motion in a straight line.
Non-linear motion is motion that is not in a straight line.
When analysing linear and non-linear motion, distance, displacement, speed, velocity, acceleration and deceleration are some commonly encountered physical quantities.
Terms Used To Define Motion
Distance and Displacement
Speed and Velocity
Acceleration
An object is said to be a point object if it changes its position by distances which are much greater than its size. A point or some stationary object with respect to which a body continuously changes its position in the state of motion is known as origin or reference point.
When we say an object is moving, it is always with respect to another object. For example, when we say a vehicle is moving on a road, it is moving with respect to the trees and poles on the road, which are ‘not moving’. When you say you are at rest or not moving while reading a book, it is with respect to your chair or your desk. When an object moves, its position (with respect to another object) changes with time. Let us take the example of a car moving away from a building.
motion
When the car is at position A, the distance between the car and the building is very small. As the car moves away from the building (Position B), its distance from the building increases. Another way of saying this is that when the car moves, its position with respect to the building changes with time. An object is said to be in motion if its position (with respect to another object) changes with time.
Types Of Motion
There are different types of motion: translational, rotational, periodic, and non periodic motion.
Translational Motion
A type of motion in which all parts of an object move the same distance in a given time is called translational motion. Examples are vehicles moving on a road, a child going down a bird flying in the sky. Translational motion can be of two types, rectilinear and curvilinear. Table shows the differences between rectilinear and curvilinear motions.
Rectilinear motion Curvilinear motion
1. When an object in translational motion moves in a straight line, it is said to be in rectilinear motion. 1. When an object in translational motion moves along a curved path, it is said to be in curvilinear motion.
2. Examples are a car moving on a straight road and a train moving on a straight track. 2. Examples are a stone thrown up in the air at an angle and a car taking a turn.
translational-motion-ExampleExamples of translational motion: a child going down a slide.
Answer:
Explanation:
There are different types of motion: translational, rotational, periodic, and non periodic motion. ... When an object in translational motion moves along a curved path, it is said to be in curvilinear motion. 2. Examples are a car moving on a straight road and a train moving on a straight trackThere are different types of motion: translational, rotational, periodic, and non periodic motion. ... When an object in translational motion moves along a curved path, it is said to be in curvilinear motion. 2. Examples are a car moving on a straight road and a train moving on a straight track