Speed - How fast an object is moving, Energy - The ability to do work, Kinetic Energy - The energy of motion, Potential Energy - An object at rest, Force - A push or pull that causes an object to stop, move, or change directions, Friction - A force that opposes the motion of an object, Inertia - Newton's 1st Law of Motion: An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force, Mass - The amount of matter in an object, Motion - An object's speed and direction, Net Force - The combination of all the forces acting on an object,

Force and Motion

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