Matter, Anything that has mass and takes up space., Mass, The amount of matter in an object., Kinetic Energy, The energy an object can have because of its motion, Friction, A force that works against the motion of an object., Net Force, A combination of al forces acting on an object., Physics, Study of the properties of matter and energy., Phenomeno, an observable event, or occurrence in the nature, Force, Any push or pull that causes an object to move, stop or change speed, direction or shape., Motion, An objects direction and speed..

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