Physics
Three basic laws of classical mechanics that describe the relationship between the motion of an object and the forces acting on it
Conservation laws are an important part of the way the physicist views nature. Two of the most important are the laws of conservation of momentum and of conservation of energy. The former follows directly from Newton's laws of motion, while the latter is much deeper
The entire physical world is made up of a relatively few substances, and these exist as atoms and molecules.
We have daily contact with matter in three states: solid, liquid, and gas. The solids we encounter are as different as apples and stones, or ice cubes and horseshoes. But there are similarities, too, and science progresses largely by looking for similarities among objects.
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