Fundamentals of Physics
Physics10 CardsCreated 3 days ago
This deck covers the essential concepts of physics, including its scope, fundamental laws, and the role of experiments and theory. It also explores the branches of classical and modern physics, highlighting key principles and symmetries.
What is physics?
Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact.
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Key Terms
Term
Definition
What is physics?
Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact.
Why do physicists use SI units?
Physicists use SI units because they are agreed upon worldwide and defined in terms of fundamental physical constants.
What is the ultimate aim of physics?
The ultimate aim of physics is to find a unified set of laws governing matter, motion, and energy at all scales.
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What are the three laws of motion set forth by Isaac Newton?
Newton's laws are: 1) Law of inertia, 2) F=ma (force equals mass times acceleration), 3) Action and reaction are equal and opposite.
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What is the significance of symmetry in physics?
Symmetry in physics leads to conservation laws, asserting the constancy of certain physical quantities under prescribed conditions.
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What is classical mechanics?
Classical mechanics is the study of the motion of objects under the action of given forces, often considered a branch of applied mathematics.
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| Term | Definition |
|---|---|
What is physics? | Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact. |
Why do physicists use SI units? | Physicists use SI units because they are agreed upon worldwide and defined in terms of fundamental physical constants. |
What is the ultimate aim of physics? | The ultimate aim of physics is to find a unified set of laws governing matter, motion, and energy at all scales. |
What are the three laws of motion set forth by Isaac Newton? | Newton's laws are: 1) Law of inertia, 2) F=ma (force equals mass times acceleration), 3) Action and reaction are equal and opposite. |
What is the significance of symmetry in physics? | Symmetry in physics leads to conservation laws, asserting the constancy of certain physical quantities under prescribed conditions. |
What is classical mechanics? | Classical mechanics is the study of the motion of objects under the action of given forces, often considered a branch of applied mathematics. |
How does modern physics modify classical physics? | Modern physics, through relativity and quantum mechanics, modifies classical laws for higher speeds, massive objects, and subatomic particles. |
What is the Bernoulli model of gas pressure? | Daniel Bernoulli's model describes gases as particles in rapid random motion, with pressure resulting from particle impacts on container walls. |
What role do experiments and theory play in physics? | Experiments provide measurements compared with theoretical predictions, advancing physics by validating or modifying theories. |
What are conservation laws in physics? | Conservation laws state that certain physical quantities remain constant over time, such as mass, energy, momentum, and electric charge. |