Theory

The video discusses the nature of scientific theories, highlighting that the best theories, like Newton's law of gravitation, are simple and predictive. These theories can be tested through experiments. However, even the most robust theories can be challenged and overturned by new evidence, emphasizing the provisional nature of scientific knowledge.

Which of the following is an example of a predictive theory mentioned in the video?

• Bohr's model of the atom

• Newton's universal law of gravitation

• Einstein's theory of relativity

• Darwin's theory of evolution

What is a key characteristic of the best scientific theories?

• They are always proven to be true

• They describe phenomena in simple terms

• They cannot be tested by experiments

• They are complex and difficult to understand

How can scientific theories be validated?

• Through experimental testing

• By being published in a journal

• By being accepted by the majority

• Through philosophical debate

What does the video suggest about the nature of scientific theories?

• They are permanent and unchangeable

• They can be overturned by new evidence

• They are always correct

• They do not require evidence

Why is the provisional nature of theories important in science?

• It makes science more predictable

• It ensures theories are never challenged

• It prevents new discoveries

• It allows for continuous improvement and adaptation