18 Questions
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?
Surface tension, fluid statics, flow in enclosed bodies, flow round bodies, flow stability, etc.
What will a student be able to distinguish at the end of studying fluid mechanics?
Elastic and plastic materials properties
What are the two main branches of fluid mechanics?
Fluid dynamics and fluid statics
Define mechanics and its two branches.
Mechanics is the study of the physics of motions and its two branches are Dynamics and Kinematics.
What is a particle in mechanics? How is it defined?
A particle is a body so small that its shape and internal structure are of no consequence in the given problem.
Explain the two types of systems studied in mechanics.
Mechanics studies the motion of particles and systems of particles that exert forces on each other.
What are the three general realms of phenomena to which the principles of mechanics have been applied?
The motions of celestial bodies, ordinary objects on Earth, and microscopic objects.
What is the difference between Dynamics and Kinematics in mechanics?
Dynamics deals with the motion of objects with its cause - force, while Kinematics describes possible motions without considering the cause.
How are celestial bodies, such as stars and planets, described by mechanics?
Celestial bodies are described by mechanics with great accuracy, allowing predictions of their motions thousands of years in advance.
What branch of mechanics describes the motion of objects without reference to the causes of motion?
Kinematics
What Greek word does the term 'kinematics' come from, and what does it mean?
Kinesis; motion
Name two kinematic quantities used to describe motion.
Velocity and acceleration
What is the study of human motion called?
Kinesiology
What English word is related to 'kinematics' and refers to movies?
Cinema
What branch of mechanics is concerned with the motion of particles and electromagnetic radiation on an atomic scale?
Atomic and subatomic physics
Test your understanding of elastic collisions and center of mass velocity in physics. Solve problems involving the velocities of two projectiles before and after an elastic collision, as well as the velocity of their center of mass. Practice calculating velocities and understanding the principles of conservation of momentum.
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