Biomechanics test 2
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| What is kinematics ? | The form, pattern or sequencing of movement with respect to time.
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| What is Liner displacement | Change in location, or the directed distance from initial to final location.
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| What is speed? | The rate you cover a distance
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| What is linear velocity ? | The rate of change in location
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| T/F Distance covered and displacement may be equal for a given movement ? | True
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| What is linear acceleration ? | The rate of change in linear velocity
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| When acceleration is zero what is velocity ? | Constant
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| What is instantaneous ? | Occurring during a small interval of time M
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| What is average ? | Occurring over a designed time interval
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| What are projectiles ? | The body in free fall that is subject only to the forces of gravity and air resistance.
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| What is the apex? | The highest point in the trajectory of a projectile
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| What is trajectory | The flight path of a projectile.
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| What is the angle of projection? | The direction at which a body is projected with respect to the horizontal.
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| What is projection speed? | The magnitude of projection velocity
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| What is range? | The horizontal displacement of a projectile at landing.
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| What is relative projection height ? | The difference between projection height and landing height.
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| What is initial velocity ? | Vector quantity incorporating both angle and speed of projection.
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| T/F the vertical speed of a projectile is constantly changing because of gravitational acceleration? | True
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| T/F the horizontal acceleration of a projectile is always zero? | True
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| What are the Laws of constant acceleration? | Formulas relating displacement, velocity, acceleration, and time when acceleration is unchanging.
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| What is the relative angle ? | Angle at a joint formed between the longitudinal axes of adjacent body segments.
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| What is Absolute angle ? | Angular orientation of a body segment with respect to a fixed line if reference.
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| What are 3 units to measure angles in ? | Degrees, radian, revolutions or rotations
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| What is the instant center? | Percisely located center of rotation at a joint at a given instant in time.
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| What is angular distance ? | The sum of all angular changes undergone by a rotating body/segment.
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| What is angulr displacement ? | Change in the angular position or orientAtion of a line segment.
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| Which direction is regarded as positive ? | Counterclockwise
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| Which direction is reguarded at negative? | Clockwise
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| What is A radian? | Unit of angular measure used in angular-liner kinematic quantity conversions; equal to 57.3 degrees
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| What is angular velocity? | Rate of change in the angular position or orientation of a line segment.
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| What is Angular acceleration ? | The rate if change in a angular velocity
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| What is the right hand rule? | Procedure for identify g the direction of an angular motion vector.
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| What is the radius of rotation? | The distance form the axis of rotation to a point od interest on a rotating body.
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| T/F the larger the radius of rotation the greater the linear distance traveled by a point on a rotating body. | True
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| What is tangential acceleration? | Component of acceleration of a body in angular motion directed along a tangent to the path of motion; represents change in linear speed.
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| What Is radial acceleration? | Component of acceleration of a body in angular motion directed toward the center of curvature; represents change in direction.
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