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Há 2 dias · Physics is the science of matter, motion, and energy that deals with the structure and interactions of the observable universe. Learn about the branches, laws, and history of physics from Britannica's experts.
Physics is the natural science of matter, involving the study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves.
Learn how physicists define and describe the fundamental quantities and patterns of the universe using math and equations. Explore the topics and questions covered in an introductory physics course on Khan Academy.
- A G force is when you feel your same weight against you. for example a roller coaster is 2 Gs,which means you will feel 2x your weight which ever d...
- For sure. Newton invented calculus to solve the specific problem of calculating planetary motion. Bessel functions were invented to solve the spher...
- dark matter is matter that doesn't emit or absorb light. We can't directly measure it.
- An electric force would be a specific type of force (a push or pull, such as gravity or friction) that is caused by the electrical interaction of o...
- Just completing a course doesn't directly mean that you'll do good on a test. You still have to do applied practice for the test. The AP Physics 1...
- Sure. Newton's first law states that an object at rest or moving with a constant velocity will stay at rest or stay moving with a constant velocity...
- There actually is gravity in space: the whole reason the Earth orbits around the sun is because the sun is a 'heavy' object that makes an impressio...
Learn what physics is about, how it relates to math and other sciences, and how it helps us understand the world around us. Watch a video with examples, questions, and comments from students and teachers.
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- "Proof" is a word used commonly but has no real meaning outside maths. Maths is the theory behind the idea in that maths is always right or wrong a...
- Good question; I like your way of thinking. I agree, it is strange that the universe should be expaning at an accelerting rate. If you want to know...
- A system that is continuously changing .
- The density of hydrogen is less than one-tenth that of air.
- Air Resistance exists
- measure the straight-line distance from start to finish
- According to Newton Gravitation is a force. And according to Einstein's theory it is not a force it is geometry, but when we study higher level phy...
- Actually Einstein didn't show that light is the fastest. Because all measurements of the speed of light in a vacuum showed light going to same spee...
- We perceive the world as something that other beings do not. For example some beings can see ultraviolet light, which we cannot naturally. This mea...
Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the study of nature in an attempt to understand how the universe behaves.
O que é Física? Para ser honesto, é realmente difícil de definir exatamente o que é Física. Para começar, a Física vive mudando conforme progredimos e fazemos descobertas. Novas teorias não apenas nos trazem novas respostas; como também, criam novas questões que podem nem ter feito sentido tendo em vista a Física anterior.
Learn physics with videos, articles, and exercises by topic. Physics is the study of matter, motion, energy, and force, and covers topics such as projectile motion, waves, electricity, magnetism, and more.
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