What is the law of gravity in simple terms?
a law stating that any two masses attract each other with a force equal to a constant (called thegravitational constant) multiplied by the product of the two masses and divided by the square of the distance between them.
What is the value for gravity?
9.8 m/s2
What are Newton’s 3 Laws called?
The laws are: (1) Every object moves in a straight line unless acted upon by a force. (2) The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object’s mass. (3) For every action, there is an equal and opposite reaction.
What is the first law of gravity?
Newton worked in many areas of mathematics and physics. He developed the theories of gravitation in 1666, when he was only 23 years old. Newton’s first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.
Is gravity a law or a theory?
Gravity is most accurately described by the general theory of relativity (proposed by Albert Einstein in 1915), which describes gravity not as a force, but as a consequence of masses moving along geodesic lines in a curved spacetime caused by the uneven distribution of mass.
What is gravity according to Newton?
Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.
Who actually discovered gravity?
Sir Isaac Newton
Is the value of g same everywhere?
The value of g at all place is not the same, it varies. The value of g is more at the poles and less at the equator. Hence on the basis of altitude the value of g changes.
Where is the value of g 0?
Acceleration due to the earth’s gravity is zero at the centre of the Earth because at that point the mass of the earth is equally distributed in all directions, so pulling equally in all directions for a net zero pull. As the distance from the centre decreases, the acceleration due to gravity also decreases.
What is the value of G on moon?
approximately 1.625 m/s2
Is Gravity present on moon?
The Moon’s surface gravity is about 1/6th as powerful or about 1.6 meters per second per second. The Moon’s surface gravity is weaker because it is far less massive than Earth. You do not have the same weight on Earth as you would on the Moon, Pluto, or even the Sun or a neutron star.
Would a body decay in space?
If you do die in space, your body will not decompose in the normal way, since there is no oxygen. If you were near a source of heat, your body would mummify; if you were not, it would freeze. If your body was sealed in a space suit, it would decompose, but only for as long as the oxygen lasted.
Why is there no life on moon?
There is no life on the Moon because of the absence of atmosphere and water on it. Since the Moon has no atmosphere, it experiences extreme temperatures. During the day time, the temperature may be as high as 1270C and it can drop down to -1730C.