Variable acceleration
A particle is said to move with variable acceleration if its velocity changes by unequal amounts in equal intervals of time. When a particle moves with variable acceleration, then its average acceleration measured for different time intervals is not the same. In the ca..
Uniform Velocity and variable velocity
Uniform Velocity and Non-uniform Velocity - Imagine that two athletes Tom and Harry are running with a uniform speed of 5 m/s on a straight line and circular track respectively. For a layman both Tom and Harry are moving with uniform velocity but for a physicist only Tom is running with uniform vel..
Non-uniform or variable acceleration
If the change in velocity in equal intervals of time is not the same, then the object is said to be moving with variable acceleratio..
Global Environmental Changes Introduction
. Earth's atmosphere in its present form, is evolved and even now being influenced by earth's movement on its axis as well as sunlight. These two parameters decide what type of atmosphere we have now - its composition as well as the total height of atmospheric cover around the earth. Such an atmosp..
Human Nervous System - Functions
It controls and coordinates all the activities of the muscles in response to the changes outsid..
Human Nervous System - Functions
Functions - The nervous system carries out the following functions i) It perceives the changes around us through our senses. ii) It controls and coordinates all the activities of the muscles in response to the changes outside. iii) It also maintains the internal environment of t..
Nervous Control in Human Beings
Nervous Control in Human Beings - Nervous System - The nervous system carries out the following functions: It perceives the changes around us through our senses It controls and coordinates all the activities of the muscles in response to the changes outside It also mai..
Closed Circulatory System in Humans
The closed circulatory system can be represented as follows. Diagram showing inter-relationship between artery, vein and capillary The closed blood vascular system is a very well developed system This is so because, a) The organisms have a thick body wall to prevent the evaporation of water, so exc..
The closed circulatory system can be represented as follows. Diagram showing inter-relationship between artery, vein and capillary The closed blood vascular system is a very well developed system This is so because, a) The organisms have a thick body wall to prevent the evaporation of water, so exc..The Human Eye and the Colourful World - Test
Question 1 - Question: The change in focal length of an eye lens to focus the image of objects at varying distances is done by the action of ________. 1. pupil 2. ciliary muscles 3. retina 4. blind spot Answer:..
The Human Eye and the Colourful World Summary
- Accommodation of the Eye The process by which the ciliary muscles change the focal length of an eye lens to focus distant or near objects clearly on the retina is called the accommodation of the eye. Power of Accommodation The ability of the eye to focus objects lying at different dista..
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