Periods 3-4, 6, 8-9:
Check out the NOVA video called "Runaway Universe." This is about the expansion of the universe, and how scientists figured out it is accelerating. Take notes, and focus on the methods used to do this. How can astronomers figure out so many details of the universe, when all they have is some light from stars? Think about what causes anything to accelerate, let alone a whole universe.
For tomorrow, check out the term "dark energy.'
Periods 3-4, 8-9:
After the NOVA, check out a video on inelastic collisions, using the example of a ballistic pendulum.
We will get into all this Thursday. Sorry to be out, it's a flu bug...happy Wednesday! :-)
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