What is the gravitational pull on Earth?
Our third grade class has been studying gravity and the motion of objects. We had a question: If the Earth no longer had gravity, would buildings and other structures attached to the Earth float away? We would like to start our answer by saying that we re sure you realize that this could never happen…
Force of gravity acting on an object
Did you know that mass and weight are not the same? This lesson describes the difference between the two as well as the effect of gravity on weight. Examples are used to teach you how to calculate weight based on mass and acceleration of gravity. Click next lesson whenever you finish a lesson and quiz…
What are the properties of gravity?
The most critical obstacle standing in the way of traveling in space is the gravitation of the Earth. Because a vehicle that is supposed to travel in outer space must be able not only to move; it must primarily and first of all move away from the Earth-i.e., against the force of gravity. It must be able…
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Force of gravity on Moon
Your weight on the moon is a function of the moon s gravity. First, we know that gravity is a force that attracts all physical objects towards each other (but why this happens is largely unknown!). Second, the greater the mass of an object, the stronger the force of gravity. The moon is 1/4 the size…
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Big Bang new theory
This is an artist s concept of the metric expansion of space, where space (including hypothetical non-observable portions of the universe) is represented at each time by the circular sections. Note on the left the dramatic expansion (not to scale) occurring in the inflationary epoch, and at the center…
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Isaac Newton theory
The following article is part of an in-depth biography of Sir, the English mathematician and scientist, author of the . It portrays the years after Newton s birth in 1642, his education, as well as his early scientific contributions, before the in Woolsthorpe-by-Colsterworth, a hamlet in the county of…
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Who discovered Dark energy?
Billions of years ago, the universe was crowded with tight-knit clusters of galaxies. Then, a party crasher got the upper hand. This mysterious force now called dark energy has since been expanding the universe at an increasing pace. New measurements of this accelerating expansion, which drives galaxies…
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Natural laws of Science
Natural law noun 1. an ethical belief or system of beliefs supposed to be inherent in human nature and discoverable by reason rather than revelation 2. a nonlogically necessary truth; law of nature See also nomological (sense 2) 3. the philosophical doctrine that the authority of the legal system or…
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