Fundamentals of Physics

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Questions and Answers

What is the primary focus of physics as a scientific discipline?

  • Developing new technologies and inventions
  • Understanding the behavior of the universe (correct)
  • Studying living organisms and their functions
  • Analyzing historical events and their impact

Which area of physics deals with the motion of objects and the forces that cause them?

  • Optics
  • Thermodynamics
  • Electromagnetism
  • Mechanics (correct)

What does kinematics primarily describe?

  • The causes of motion
  • The relationship between heat and work
  • Motion without considering its causes (correct)
  • The behavior of light

In physics, what is energy defined as?

<p>The capacity to do work (B)</p> Signup and view all the answers

Which of Newton's Laws states that for every action, there is an equal and opposite reaction?

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

What does thermodynamics study?

<p>Heat, work, and energy (B)</p> Signup and view all the answers

What is electric current?

<p>The rate of flow of electric charge (C)</p> Signup and view all the answers

Which phenomenon describes the bending of light as it passes from one medium to another?

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

What concept is described by the statement that energy, momentum, and other properties can only take on discrete values?

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

What is the SI unit for measuring time?

<p>Second (B)</p> Signup and view all the answers

Flashcards

What is Physics?

The study of matter, energy, motion, and force, aiming to understand the universe's behavior.

What is Kinematics?

Describes motion using displacement, velocity, and acceleration, without considering causes.

What is Dynamics?

Studies the causes of motion, such as forces and torques.

Newton's First Law

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a force.

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Newton's Second Law

Force equals mass times acceleration (F = ma).

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Newton's Third Law

For every action, there is an equal and opposite reaction.

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What is Work?

The energy transferred to or from an object by a force acting on it.

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What is Temperature?

A measure of the average kinetic energy of the particles in a system.

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What is Refraction?

The bending of light as it passes from one medium to another.

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Heisenberg Uncertainty Principle

The position and momentum of a particle cannot both be known exactly.

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Study Notes

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