What is meant by the statement physics is an experimental science?

Answer 1

An experimental physicist also has hypotheses and theories, but they devise actual experiments to show these hypotheses are true (or not).

General Relativity is one example where it is shown true by both mathematics and by experiments. The latest experiment to show General Relativity is true is the satellite "Gravity Probe B", which orbited the earth (still is) for a couple of years gathering data on what's called "frame dragging" -- which is a prediction from General Relativity math that had not been shown by experiment (until now).

Answer 2

Physics relies on conducting experiments to test and validate theories and models. Empirical evidence gathered through experiments forms the foundation of physical theories, allowing physicists to understand and explain natural phenomena. Without experimental verification, theories in physics would remain hypothetical and lack real-world applications.