Evolution of Physics: Classical to Modern

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Questions and Answers

Which statement best describes the evolution of the definition of 'physics'?

It shifted from studying physical phenomena to exclusively exploring atomic and subatomic particles.
It consistently focused on the study of matter and its interactions without significant change.
It narrowed from the study of all natural phenomena to focus specifically on physical phenomena. (correct)
It broadened from the study of physical phenomena to encompass all natural phenomena.

How did human senses influence the early classifications of phenomena in classical physics?

They were disregarded in favor of mathematical models.
They formed the basis for dividing physics into mechanics, thermodynamics, and electromagnetism.
They served as the initial means to categorize phenomena, such as relating light to vision (optics) and sound to hearing (acoustics). (correct)
They directly determined the fundamental constants of nature, like the speed of light.

What distinguishes modern physics from classical physics?

Modern physics rejects the concept of wave-particle duality, while classical physics embraces it.
Modern physics emerged with quantum theory and relativity, studying atomic and subatomic particles, while classical physics includes mechanics, thermodynamics, optics, and electromagnetism. (correct)
Modern physics relies solely on observation, while classical physics incorporates theoretical models.
Modern physics focuses on macroscopic phenomena, whereas classical physics deals with atomic and subatomic levels.

What is the significance of wave-particle duality in modern physics?

It demonstrates that elementary particles exhibit both wave and particle characteristics, fundamentally changing how we understand matter at the atomic level. (A) Signup and view all the answers

How does the interrelation between experimentation and theory contribute to the progress of science?

Theory guides new experiments, and experiments test and refine theories, leading to continuous scientific advancement. (C) Signup and view all the answers

According to the content, which of the following statements reflects Albert Einstein's contribution to modern physics?

His theory of relativity introduced the concept that time and space are relative, and the speed of light is a fundamental constant. (D) Signup and view all the answers

What was a key characteristic of physics in the 19th century before the advent of modern physics?

Classical branches of physics, such as mechanics and electromagnetism, were largely disconnected. (B) Signup and view all the answers

Max Planck is known for what contribution to the development of modern physics?

Coining the term 'quantum' and laying the foundation for quantum theory. (A) Signup and view all the answers

If a scientist uses existing theoretical knowledge to design and conduct a new experiment, what is most likely the aim of this experiment?

To test the limitations and failures of the existing model, or to validate the theory. (C) Signup and view all the answers

Which area of study falls under classical physics rather than modern physics?

Electromagnetism. (A) Signup and view all the answers

Flashcards

What is Physics?

The study of matter, energy, and their interactions, aiming to explain natural phenomena.

Branches of Classical Physics

Mechanics, thermodynamics, optics, and electromagnetism.