What is a scientific law definition?
In this lesson, you ll learn the definition and characteristics of a scientific theory and understand how theories are formulated. You ll see examples of scientific theories, and after the lesson you can test your knowledge with a brief quiz. Click next lesson whenever you finish a lesson and quiz…
Gravitational constant of the Earth
The Controversy over Newton s Gravitational Constant In 1686 Isaac Newton realized that the motion of the planets and the moon as well as that of a falling apple could be explained by his Law of Universal Gravitation, which states that any two objects attract each other with a force equal to the product…
Gravitational pull of Sun
What is the gravational pull of the sun? - forman (age 15) north shore, california A: Well, the strength of a gravitational field of a spherically symmetrical object is inversely proportional to the square of the distance you are from the center (that is, if you are outside - I hope you re outside of the sun!). So your answer depends on where you are. If you re standing on…
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What is the relativity theory?
Relativity is one of the most famous scientific theories of the 20th century, but how well does it explain the things we see in our daily lives? Formulated by Albert Einstein in 1905, the theory of relativity is the notion that the laws of physics are the same everywhere. The theory explains the behavior of objects in space and time, and it can be used to predict everything…
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Formula for force of attraction
Field of a cylindrical bar magnet calculated with Ampère s model Two models are used to calculate the magnetic fields of and the forces between magnets. The physically correct method is called the Ampère model while the easier model to use is often the Gilbert model. Ampère model: In the Ampère model, all magnetization is due to the effect of microscopic, or atomic, circular…
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Peter Higgs theory
However, after struggling with his theories in the 1960s without much support, the subsequent transition to celebrity has not been a comfortable one for him. Nobody else took what I was doing seriously, so nobody would want to work with me,he said in an interview on The Life Scientific on BBC Radio 4. I was thought to be a bit eccentric and maybe cranky. Asked how he feels…
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Gravitational pull on Moon
By measuring the ages of lunar rocks, we know that the moon is about 4.6 billion years old, or about the same age as Earth. The distance between the Earth and its moon averages about 238, 900 miles (384, kilometers). The diameter of the moon is 2, 160 miles (3, 476 kilometers). The moon s massthe amount of material that makes up the moonis about one-eightieth of the…
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