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Gullett-Phys-Ch5
Physics-Ch5-Newton's Third Law
Term | Definition |
---|---|
Newton's third law | whenever one object exerts a force on a second object, the second object exerts and equal and opposite force on the first |
vector quantity | a quantity that has both magnitude and direction. Examples include force, velocity and acceleration. |
scalar quantity | a quantity that has magnitude but not direction. Examples are mass, volume, speed. |
vector | an arrow drawn to scale used to represent a vector quantity |
resultant | the net result of a combination of two or more vectors |
components | mutually perpendicular vectors, usually horizontal and vertical, whose vector sum is a given vector |
lift | the upward reaction force of air |
inertia | the property of objects to resist a change in motion |
parallelogram rule | a four sided figure with opposite sides parallel to each other used to determine a resultant vector. |
pythagorean theorem | R^2 = X^2 + Y^2 |
resolution | the process of determining the components of a vector |