Acceleration, The change in an object's velocity over time, measured in distance per unit time per unit time (for example meters per second per second or m/s2)., Newton, A metric (or SI) unit measuring force and named for English physicist Isaac Newton., Net Force, The sum of all forces acting on a particle or body., Velocity, The speed of something in a given direction., Displacement, How far out of place an object is, Distance, How far an object has traveled., Gravity, The natural force that attracts a body toward another body that has mass., Speed, How fast an object moves, measured in m/s., Inertia, An object retains its state of rest or its velocity so long as it is not acted upon by an external force., Mass, The amount of matter that an object contains., Motion, Changing place or position, Time, The system of those sequential relations that any event has to any other, as past, present, or future.

Motion

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