In this article we are going to discuss the motion in different dimensions.
Motion in one dimension
An object moving along a straight line or path is said to have one-dimensional motion.
Suppose an object moves in a particular direction then its position at any time can be described by knowing its distance from the starting point of the motion. It means, only one position coordinate (say, x) is required to describe the position of the object in one dimensional motion.
Example: Motion of a bus on a straight road and motion of a train on a straight track, an object dropped from a certain height above the ground etc.
Motion in two dimensions
If two of the three co-ordinates specifying the position of object changes w.r.t. time, then the motion of object is called two dimensional. In such a motion the object moves in a plane.
Example:
An insect crawling on the floor of the room, motion of object in horizontal and vertical circles etc., motion of planets around the sun, a car moving along a zig-zag path on a level road.
Motion in three dimensions
If all the three co-ordinates specifying the position of object changes w.r.t. time, then the motion of object is called three dimensional. In such a motion the object moves in a space.
Example:
An insect flying in the room, random motion of gas molecules, motion of a helicopter in sky.
Related Physics Articles:
-
Mechanical Energy
The energy produced by mechanical means is called mechanical energy. It has two forms: (i) Kinetic energy (ii) Potential energy. Kinetic energy The energy possessed by a body by virtue of its motion is called its kinetic energy. A moving object can do work. The amount of work that a moving object can do before…
-
Units of Work
As W = FS ∴ 1 unit work = 1 unit force × 1 unit distance Thus, unit work is the amount of work done when a unit force displaces a body through a unit distance in the direction of the force. Absolute units of work. Work done is said to be one absolute unit…
-
Work
What is Work? Work is said to be done whenever a force acts on a body and the body moves through some distance in the direction of the force. Thus, work is done on a body only if the following two conditions are satisfied: (i) A force acts on the body. (ii) The point of…