Question: What is the principle of relativity?

Options:

1. The laws of physics are the same in all inertial frames of reference.
2. Energy can be created from nothing.
3. Time is absolute and does not change.
4. Mass and energy are unrelated.

Correct Answer: The laws of physics are the same in all inertial frames of reference.

Solution:

The principle of relativity states that the laws of physics are invariant in all inertial frames of reference, meaning they hold true regardless of the observer\'s state of motion.