Can you explain? Questions that will be answered in the following lesson
Completion requirements
In the following lesson you will find an
article which has answers to these questions.
After you have read it and done all
exercises, come back and challenge yourself with the questions.
Only you know if you can
answer them. If you are doing this course under supervision you may expect your teacher to ask you some of the questions.
Find
the answers while reading the article in the lesson that follows.
- Models are particularly useful in relativity and quantum mechanics, where
conditions are outside those normally encountered by humans. What is a model?
- How does a model differ from a theory?
- If two different theories describe experimental observations equally well,
can one be said to be more valid than the other (assuming both use accepted
rules of logic)?
- What determines the validity of a theory?
- Certain criteria must be satisfied if a measurement or observation is to be
believed. Will the criteria necessarily be as strict for an expected result as
for an unexpected result?
- Can the validity of a model be limited, or must it be universally valid?
How does this compare to the required validity of a theory or a law?
- Classical physics is a good approximation to modern physics under certain
circumstances. What are they?
- When is it necessary to use relativistic quantum mechanics?
- Can classical physics be used to accurately describe a satellite moving at a speed of 7500 m/s? Explain why or why not.
Source: https://opentextbc.ca/physicstestbook2/chapter/physics-an-introduction/
Date: 17.04.2020 License:
CC BY
Last modified: Wednesday, 4 November 2020, 5:56 PM