Newton's Laws of Motion

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Questions and Answers

What does biomechanics use to study the anatomy and functional aspects of living organisms?

  • The tools of physics
  • The tools of chemistry
  • The tools of biology
  • The tools of mechanics (correct)

What is kinematics concerned with?

  • The description of motion without regard to forces or torques (correct)
  • The forces and torques producing motion
  • The study of motion in living organisms
  • The analysis of motion in a vacuum

What is linear motion characterized by?

  • All parts of the body traveling the same distance and in the same direction (correct)
  • Different parts of the body traveling different distances
  • Rotation of segments around an axis
  • The center of mass moving in a circular motion

What is the unit of measurement for acceleration?

<p>meters/second^2 (C)</p> Signup and view all the answers

What is angular displacement?

<p>The change in orientation of a line segment (C)</p> Signup and view all the answers

What is the study of the forces associated with movement called?

<p>Kinetics (D)</p> Signup and view all the answers

What is the primary concept described by Newton's First Law of Motion?

<p>The tendency of an object to maintain its state of motion or rest (A)</p> Signup and view all the answers

What is the direction of the force causing a change in an object's linear momentum?

<p>In the direction of the force acting on the object (A)</p> Signup and view all the answers

What is a characteristic of a qualitative description?

<p>It can be either general or precise (C)</p> Signup and view all the answers

What is the main advantage of using quantitative measurements in physics?

<p>They allow for better comparisons and assessments of risk (C)</p> Signup and view all the answers

What is the concept described by Newton's Third Law of Motion?

<p>The equal and opposite reaction to an action (C)</p> Signup and view all the answers

What type of observation do physicians, trainers, and fitness instructors use to formulate opinions or give advice?

<p>Qualitative description of patient or athlete performance (B)</p> Signup and view all the answers

What is the primary principle behind Newton's First Law of Motion?

<p>A force is required to change an object's motion. (C)</p> Signup and view all the answers

What is the relationship between the rate of change of linear impulse and the force causing it?

<p>The rate of change of linear impulse is directly proportional to the force causing it. (B)</p> Signup and view all the answers

What is the fundamental concept described by Newton's Third Law of Motion?

<p>Every action has an equal and opposite reaction. (D)</p> Signup and view all the answers

What is the primary difference between qualitative and quantitative descriptions?

<p>Qualitative descriptions do not use numbers, while quantitative descriptions do. (C)</p> Signup and view all the answers

Why is quantitative measurement useful in physics?

<p>It provides a way to compare and measure physical parameters. (D)</p> Signup and view all the answers

What is the benefit of using quantitative measurements in assessing risk of injury?

<p>It allows for better comparison and prediction of injury risk. (C)</p> Signup and view all the answers

What type of observation do physicians, trainers, and fitness instructors often use to formulate opinions or give advice?

<p>Only qualitative observations. (D)</p> Signup and view all the answers

What does biomechanics focus on?

<p>The anatomy and functional aspects of living organisms (D)</p> Signup and view all the answers

What is the primary concern of kinematics?

<p>The description of the motion of a body over time (B)</p> Signup and view all the answers

What is the term for the change in position of an object in space?

<p>Displacement (C)</p> Signup and view all the answers

What is the direction of the acceleration of an object?

<p>The same direction as the displacement (D)</p> Signup and view all the answers

What is the unit of measurement for average speed?

<p>meters per second (B)</p> Signup and view all the answers

What is the term for the rotation of segments around an axis?

<p>Angular motion (C)</p> Signup and view all the answers

What is the study of the forces associated with movement?

<p>Kinetics (D)</p> Signup and view all the answers

What is the center of mass movement characterized by?

<p>Ignore the rotation (A)</p> Signup and view all the answers

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