20 words
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| Acceleration | The rate at which the velocity of an object changes. (M/s^2)
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| Displacement | A change in position having both magnitude and direction; is equal to the final position minus the initial position. (m)
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| Force | A push or pull exerted on an object that causes a change in motion; has both direction and magnitude and may be a contact or a field force. (Newtons N)
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| Impulse | The prod uct of the average net force on an object and the time interval over which the force acts. (N*s)
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| Inertia | The tendancy of an object to resist change.
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| Kinectic Energy | The energy of an object resulting from its motion. (Joules J)
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| Momentum | The product of the objects mass and the objects velocity. (Kg m/s)
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| Newtons 1st Law of Motion | States that an object at rest will remain at rest, and moving object will continue moving in a straight line with constant speed, if and only if the net force acting on that object is zero.
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| Newtons 2nd Law of Motion | States that the acceleration of an object is proportional to the net force and inversly proportional to the mass of the object being accelerated.
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| Normal force | The perpendicular contact force exerted by surface of another object.
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| Power | The work done, divided by the time needed to do work. (Watts)
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| Scalar | Quantities such as temperature and distance, that are just numbers without any direction.
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| Tension | The specific name for the force exerted by the rope or a string. (Newtons)
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| Vector | Quantities such as positions that have both magnitude and direction
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| Work | The transfer of energy by mechanical means is done when a constant force is exerted on an object in the direction of motion, times the objects displacement.
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| Potential Energy | Stored energy in a system
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| Mass | Amount of matter in an object
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