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Top: Kids_and_Teens: School_Time: Science: Physics: Motion_and_Forces
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Motion of physical bodies and the Forces that generate it. . Only comprehensive websites intended, targeted, or appropriate for people under the age of 18 will be listed here. Please submit your site to the more appropriate subcategory depending on its topic. Kids and Teens lists sites for kids, not about kids. Kids and Teens/International depending on the language. The ODP does not list redirection or vanity URLs. Please submit the URL of your server. |
Briefly stated, this category is about the branch of physics, the classical mechanics, concerned with the motion of physical bodies (kinematics), and with the forces that cause, or limit, these motions, as well as with forces which such bodies may, in turn, give rise to (dynamics). Thus the term "body" needs to stand for a wide assortment of objects, including particles, projectiles, spacecraft, stars, parts of machinery, parts of solids, parts of fluids (gases and liquids), etc.
The Coriolis effect is when an object appears to turn due to the observer not standing still, usually turning in a circle.
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Only comprehensive websites intended, targeted, or appropriate for people under the age of 18 will be listed here. Websites about general relativity should be sent to: to Relativity . Kids and Teens lists sites for kids, not about kids. The ODP does not list redirection or vanity URLs. Please submit the URL of your server. |
Gravity is the force of attraction between massive particles. Weight is determined by the mass of an object and its location in a gravitational field. Gravity, simply put, is acceleration. F=ma means that there must be a force that causes a mass to accelerate. For a rocket ship, that is the rocket motor. For the earth, that is the compression of the mass between something on the surface of the earth and the earth's center of mass. While a great deal is known about the properties of gravity, the ultimate cause of the gravitational force remains an open question. General relativity is the most successful theory of gravitation to date. It postulates that mass and energy curve space-time, resulting in the phenomenon known as gravity.
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