Biomechanics glossary

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Physical Science

Last updated 12:30 PM on 1/19/23
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13 Terms

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Scalar quantity
Quantities that just have size
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Vector quantity
Quantities that have size and direction
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Mass
The quantity of matter the body possesses
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Weight
The gravitational force exerted on ab object
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Distance
Measured in metres and is the path a body takes as it moves from starting to finishing position
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Displacement
Measured in metres and is the shortest route in a straight line between the straight line between the starting and finishing position
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Speed
A measurement in m/s of the body’s movement per unit of time with no reference to direction
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Velocity
Measured in m/s and is the rate of change of displacement
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Acceleration
Measured in m/s^2 and is the rate of change of velocity
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Momentum
Momentum = mass x velocity
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External force
Comes from outside the body
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Internal force
Is generated by the skeletal muscle
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Reaction force
Occurs when two bodies are in contact with one another