KIN 3514 Final Study Guide

KIN 3514 Final Study Guide - Chapter 8- Linear Kinematics...

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Chapter 8- Linear Kinematics 1. T Calculating the range of motion at the hip joint during stair ascent after visually observing the movement is a quantitative analysis. 2. T The motion of a parachutist in the air is an example of translational motion. 3. T The x- and y- axes in a two dimensional rectangular reference system are always oriented vertically and horizontally, respectively. The X- and Y-axes in a two-dimensional rectangular reference system are oriented in any manner - pg. 303 4. F With a coordinate reference system originating at the hip joint, the axes of the coordinate system will always be horizontal and vertical. 5. T A 3D reference frame has three axes. 6. T Speed is a scalar quantity. 7. F Acceleration is defined as the time rate of change of position. Acceleration is defined as the rate of change of velocity with respect to time. - pg.315 8. F Displacement is a scalar quantity. Displacement is a vector quantity. - pg. 308 9. T The slope of a line tangent to a curve indicates instantaneous velocity. 10. T Vectors can be added together graphically by placing the head of one vector at the tail of the other vector. 11. F The area under a displacement time graph represents the average velocity. 12. F Positive acceleration relates to the direction of motion away from the origin. 13. F The point where the velocity is maximum in a velocity time graph indicates the point where acceleration is maximum. 14. F Velocity is a measure of the area under the position time curve. 15. T The steepness of the slope of a velocity time curve is an indication of the magnitude of the acceleration. 16. F Stride length is always measured from the heel contact of one foot to the heel contact of the other foot. Stride length is always measured from the heel contact of one foot to the heel contact of the same foot again. –pg. 320 17. F The support phase in walking accounts for the same percentage of the total cycle as in running. The support phase in walking accounts for 60% of the total cycle as in running. –pg. 321 18. F Walking speed is increased by first increasing stride length and then stride rate. 19. F Successful sprinters can usually increase their acceleration at the end of the race. 20. T During running, stride length can affect metabolic cost. 21. T In a golf swing, the club head should be decelerating past contact with the ball. 22. F Maximum acceleration of the club head occurs at the moment of impact in a golf swing. 23. F Velocity of wheelchair propulsion is increased by increasing the length of the push on the wheel. Velocity of wheelchair propulsion is increased by increasing the frequency of the push on the wheel. –pg. 325 24. F Horizontal motion of a projectile is a special case of constant acceleration and determines the range of the projectile.
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Horizontal motion of a projectile is a special case of constant velocity and determines the range of the projectile. –pg. 328 25. T
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KIN 3514 Final Study Guide - Chapter 8- Linear Kinematics...

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