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Chapter Assessment Lesson 1.3
Learning Key Terms and Concepts
_____ is a force that pulls or stretches the tissue.
_____ is a force that, with enough energy, crushes tissue.
_____ is a force that moves parallel with tissue.
_____ is caused by a combination of off-center forces.
A bruise is caused by _____.
A. compression
B. tension
C. shearing
D. torque
_____ is the single force resulting from the summation of all forces acting on an object at a given time.
A. Net mass
B. Net force
C. Net torque
D. Net weight
A tissue is said to be _____ when a force is removed and the object returns to its original shape.
A. plastic
B. torqued
C. efferent
D. elastic
Thinking Critically
A football player's foot is planted, and he is in the process of turning when his knee is hit from the side, resulting in a serious injury to the ligaments of the knee. Which two forces acted on the knee to produce this injury?
Assume that your body is struck by a baseball and a basketball of the same weight traveling at the same speed. Which will exert more pressure on your body—the baseball or the basketball? Why?
Is skin or bone more elastic? Why?
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