Physics - Elastic Collision and Center of Mass Velocity
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Questions and Answers

What branch of physics is concerned with the mechanics of fluids in motion and at rest?

Fluid mechanics

Give an example of an application of fluid mechanics.

Airplanes

Define a fluid in the context of physics.

A substance that continually deforms (flows) under an applied shear stress or external force.

What are some examples of problems dealt with in the study area of fluid mechanics?

<p>Surface tension, fluid statics, flow in enclosed bodies, flow round bodies, flow stability, etc.</p> Signup and view all the answers

What will a student be able to distinguish at the end of studying fluid mechanics?

<p>Elastic and plastic materials properties</p> Signup and view all the answers

What are the two main branches of fluid mechanics?

<p>Fluid dynamics and fluid statics</p> Signup and view all the answers

Define mechanics and its two branches.

<p>Mechanics is the study of the physics of motions and its two branches are Dynamics and Kinematics.</p> Signup and view all the answers

What is a particle in mechanics? How is it defined?

<p>A particle is a body so small that its shape and internal structure are of no consequence in the given problem.</p> Signup and view all the answers

Explain the two types of systems studied in mechanics.

<p>Mechanics studies the motion of particles and systems of particles that exert forces on each other.</p> Signup and view all the answers

What are the three general realms of phenomena to which the principles of mechanics have been applied?

<p>The motions of celestial bodies, ordinary objects on Earth, and microscopic objects.</p> Signup and view all the answers

What is the difference between Dynamics and Kinematics in mechanics?

<p>Dynamics deals with the motion of objects with its cause - force, while Kinematics describes possible motions without considering the cause.</p> Signup and view all the answers

How are celestial bodies, such as stars and planets, described by mechanics?

<p>Celestial bodies are described by mechanics with great accuracy, allowing predictions of their motions thousands of years in advance.</p> Signup and view all the answers

What branch of mechanics describes the motion of objects without reference to the causes of motion?

<p>Kinematics</p> Signup and view all the answers

What Greek word does the term 'kinematics' come from, and what does it mean?

<p>Kinesis; motion</p> Signup and view all the answers

Name two kinematic quantities used to describe motion.

<p>Velocity and acceleration</p> Signup and view all the answers

What is the study of human motion called?

<p>Kinesiology</p> Signup and view all the answers

What English word is related to 'kinematics' and refers to movies?

<p>Cinema</p> Signup and view all the answers

What branch of mechanics is concerned with the motion of particles and electromagnetic radiation on an atomic scale?

<p>Atomic and subatomic physics</p> Signup and view all the answers

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