vandana rajput: Recent Episodes
vandana rajput
Heredity : Passing of traits from parents to offsprings.Some special or specific characteristics that categorise us.Some of the inherited traits are- Hair colour,eye colour,height,shape of feet,free or attached ear lobes . Genetics: study of heredity.
External and Internal Fertilization,IVF(Invitro Ferlilization),Viviparous and Oviparous animals. Lets Create: Visit the sites at internet ,search for articles on cloning,its applications ,advantages and disadvantages. And write a report on it.
Series of compounds in which same functional group substitutes for hydrogen in a carbon chain.For example - series of Alkanes Alkenes Alkynes.
Value of G is constant whereas the value of small g changes from place to place as earth is not a perfect sphere.Its radius at poles is smaller than that at equator,so the value of g is more at poles than that of equator as the g is inversly proportional to the radius.At the centre of earth the value of g becomes zero.
Free Fall - A free falling body is a body when it falls from a particular height only under the action of gravitational force of earth.Lets summarize:2 As the object falls towards the ground then its velocity increases continuously. 2.Acceleration on the free falling body due to the gravity of earth is called the acceleration due to gravity.3.Acceleration of the object in case of free falling body does not depend upon the mass of the object.
1.Always attractive .2.Its a force at a distance.3.weakest force4.equal and opposite5. independent of intervening medium.6.acts along the line joining the centre of 2 bodies.7.long range force.8.weakest force in nature.
Newton's Universal Law of Gravitation:Sir Issac Newton in 1687 proposed a law about the force of attraction between the two objects in the universe which is called law of gravitation.
The force of attraction between any two bodies in the universe is called gravitational force .Newton's proposed the universal law of gravitation and showed that the gravitational force between two masses varies inversly proportional to the square of the distance between them.This fact was proved by him on the basis of Keplers laws of planetary motion.The mathematical expression of universal law of gravitation is: F= G m1m2/r2