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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Vectors
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displacement, velocity, acceleration, force, momentum, and electric and magnetic fields.
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Two-dimensional vectors
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Vectors that lie in a flat plane.
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Vector
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Is a quantity that involves both magnitude and direction and obeys the commutative law for addition.
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e.g. 55 miles per hour north
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Scalar
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A quantity that does not involve direction.
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e.g. 55 miles per hour
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Scalar examples
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mass, work, energy, power, temperature, and electric charge.
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Vectors are equal if...
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they have the same magnitude and the same direction.
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Physics
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provide an understanding of the physical world by developing theories based on experiments.
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Physical Theory
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Describes how a given physical system works.
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Physic Bases
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Physical quantities such as force, velocity, volume and acceleration.
In mechanics it is conventional to use the quantities of length, mass, and time. All other physical quantities are based of these. |
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