Light Speed Video

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2. Today's Assignment is FORMATIVE, so finishing the lab is worth way more towards your grade than this video. Use that information to make the smarter choice for your grade.

​Date: 9/15 & 9/18
Standard: HS-ESS1-2 Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.

Agenda: Quizizz Classwork & Light Speed Video Discussion
Learning Intention: Explain how light is used to figure out the age of the universe.
Success Criteria: Identify the age of the universe and how we know that.
In canvas:
Geoscience: https://hsccsd.instructure.com/courses/332797/assignments/9247184
Geo Honors: https://hsccsd.instructure.com/courses/332376/assignments/9207770

​Part 1 

1. What is the measurement for the speed of light? 

2. Why was there a 2 second delay when talking to the astronauts on the moon? 

3. When was the light from the sun that we see in the sky generated? 

4. What is the next closest star to the Sun? 

5. How far does light travel in 1 year? 

6. What do we call this distance? 

7. Why do we see stars as they were in the past and not as they are now?

8. What is the closest Galaxy to our galaxy the Milky Way? 

9. What is a gravity lens? 

10. How old is the universe? 

11. What is the oldest thing we can see in the universe?

12. How does redshift work? 

13. When white light appears blue, is the light moving towards or away from Earth? 

14. When white light appears red, is the light moving towards or away from Earth? 

15. What famous astronomer discovered that the universe is expanding? 

END Part 1: Play until 15:33

Part 2

1. Why can we NOT see the entire universe? 

2. What is the term for the furthest we can see in space? 

3. What was the major problem scientists discovered about the original big bang theory? 

4. What is the theory of Inflation? 

5. What is the only thing that can travel faster than the speed of light? 

6. How is the speed of light coming off of an object different from the speed of something thrown from an object? 

7. How does time change when something goes the speed of light? 

8. How does your age change as you move closer to the speed of light? 

9. How does GPS have to be changed to accommodate light speed? 

10. What is the distortion of images at the speed of light called? 

End Part 2: 31:28

Part 3

1. What is the only situation in which the speed of light is constant? 

2. What happens to light when it travels through air, water, or glass? 

3. How does your eye work to see images? 

4. How do telescopes work? 

5. What is one use of the experiment that stops light rays? 

6. What happens to mass as it approaches the speed of light? 

7. How much energy would be required to go the speed of light according to relativity?

8. How could we travel further than light speed? 

9. How does warp speed work in theory? 

10. What is the first step towards a warp engine?