1. EMR, Big Bang, and Stars Unit Review

2. Use the pink NECAP reference sheet to answer following questions: 1.What is the relationship between the frequency of a wave, its energy and its wavelength? 2.According to the electromagnetic spectrum, which of the following waves is associated with the least amount of energy? (ultraviolet, microwaves, infrared or visible light)

3. More EMR Questions: 1.Put these types of EMR in order of decreasing frequency: x-rays, radio waves, visible light, gamma rays, infrared 2.If traveling through a vacuum, which property of EMR remains constant?

4. Emission Spectrums: 1.Which part of the atom is responsible for creating an element’s emission spectrum? 2.Name two areas of science emission spectrums are used.

5. Doppler Effect: 1.Describe, in terms of frequency and wavelength, the Doppler effect. 2.Give an example of when you would observe the Doppler in everyday life.

6. Hubble’s Law The above diagram illustrates two emission spectrums for hydrogen released by the same star several years apart. Explain how we know the star is moving away from us?

7. The Big Bang Theory: 1.Approximately how old is our universe? 2.How did the universe start? 3.What element was created first?

8. The Big Bang Theory: 1.Put these events in chronological order starting from the beginning of the universe to present: Our solar system was formed Rapid expansion from a “singularity” occurred Galaxies formed along with stars Atoms of elements of hydrogen or helium formed Fusion of hydrogen occurred

9. Life Cycle of Stars Draw a Venn diagram illustrating how different size stars have life stages that are similar and some that are different.