Introduction to Physics: Core Theories
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Questions and Answers

Which of the following is NOT a primary focus of physics?

  • The study of matter and its constituents
  • The analysis of literary texts and their historical context (correct)
  • The related entities of energy and force
  • The motion and behavior of matter through space and time

Classical mechanics is primarily used to describe the behavior of atoms and subatomic particles.

False (B)

What is the area of physics that deals with heat, work, and energy, and the relationships between them?

Thermodynamics

The law of thermodynamics that introduces the concept of entropy is the ______ law.

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

Which subfield of classical mechanics focuses on the motion of objects and the forces that cause them?

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

Which of the following medical applications relies most directly on principles of physics?

<p>Computed Tomography (CT) (C)</p> Signup and view all the answers

Match the following concepts to their respective areas of physics:

<p>Entropy = Thermodynamics Newton's Laws of Motion = Classical Mechanics Electromagnetic Radiation = Electromagnetism Quantum Behavior = Quantum Mechanics</p> Signup and view all the answers

Name the area of physics that unifies electricity and magnetism.

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

Which of the following technologies is LEAST directly based on the principles of quantum mechanics?

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

General relativity explains gravity as a force acting between two masses.

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

According to the theory of relativity, what happens to objects as they approach the speed of light?

<p>relativistic effects become significant</p> Signup and view all the answers

The study of the properties and applications of materials is known as ______.

<p>materials science</p> Signup and view all the answers

Match each branch of physics with its primary focus:

<p>Acoustics = Study of sound Astrophysics = Study of celestial objects Geophysics = Study of the Earth Optics = Study of light</p> Signup and view all the answers

Which of the following best describes the relationship between work and power?

<p>Power is the rate at which work is done. (B)</p> Signup and view all the answers

The mole (mol) is the SI base unit for luminous intensity.

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

What is the first step in the scientific method?

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

______ is a branch of mathematics used extensively in physics to describe motion and change.

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

Which area of current physics research seeks to unify all fundamental forces of nature?

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

Flashcards

What is Physics?

The study of matter, energy, and their interactions.

Classical Mechanics

Motion of macroscopic objects, like planets or machines.

Thermodynamics

Deals with heat, work, energy, and their relationships.

Electromagnetism

Phenomena involving electric/magnetic fields.

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Relativity

Space, time, and gravity on a cosmic scale.

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Quantum Mechanics

Behavior of matter/energy at the atomic level.

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Kinematics

Motion without considering causes.

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Dynamics

Motion and the forces that cause it.

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Maxwell's Equations

Describe the behavior of electric and magnetic fields.

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Special Relativity

Relationship between space and time, independent of gravity.

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General Relativity

Gravity is the curvature of spacetime.

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Astrophysics

The study of celestial objects.

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Energy

Capacity to do work.

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Force

Interaction changes motion.

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Momentum

Object's mass in motion.

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Observation

Gathering data.

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Experiment

Test of a hypothesis.

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Description

Explore the fundamentals of physics, a natural science that studies matter, energy, and their interactions. Physics seeks to understand the behavior of the universe and drives technological advancements. It's a core science that enhances other disciplines and improves quality of life through medical innovations.

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