A5 Galilean and special relativity [HL only]
Until now, everything has been rather slow (except light, of course). In this relativity chapter, we will bust this assumption open and see what happens when matter approaches the universe's top speed. In this opening Activity for Relativity, you will learn how an event can be measured in different frames of reference, understand the difference between inertial and non inertial frames of... Now we come to the light...