AST101H5 Chapter 5: AST101-Chapter 5.txt
Document Summary
Meteorites: material of the solar system that hits earth and is recovered. Cosmic rays = very high energy subatomic particles from the sun and deep sp ace. All meteorites + moon rocks + cosmic rays give us very limited information. Light = almost all information about space, and only connection with dist ant objects. White light = visible light (seen by our eye) contains all colours mixed together. Sorting light by colours (from deep violet to deep red) -> spectrum of ligh t = first step in getting information from light - first done by isaac newton in. 1. a wave has a length, after which it repeats. 2. a wave has a height or amplitude above and below the central line. 4. a wave has a frequency = number of waves passing a fixed location each se cond = speed of the wave / wavelength.
