A student says that the Big Bang theory has now been proved to be true.
Why is the student's statement incorrect?
The theory has no observations supporting it at all
The theory was replaced by a better one after 1998
The theory could be changed if new evidence is found
The theory only applies to galaxies close to the Earth
41 exam-style questions on AQA GCSE Physics 8.2 Red-shift, covering 8.2 Red-shift. Each one has a worked solution and a mark scheme showing where the marks go.