Explain how to derive the wave equation starting from X=VT. Pretend you're writing on the chalkboard during a lecture.



Draw a diagram illustrating the meaning of Hubble's law.



Describe what the universe will look like 1 trillion years from now.



In the future the Earth is doomed to be destroyed. How will this happen?



How many billions of years after the big bang was the Earth formed? (to the nearest 2 billion)



How many Joules are in a battery that is labeled "1 Watt hour"?



How many Joules are in one food calorie?



What is the age of the Earth in billions of years? (to the nearest billion)



Suppose you're a politician on a debate stage and you're asked what you would do to prepare America for natural disasters, and that you have 2 minutes before the moderator cuts you off. What would you say?



Same question as above, this time for preparing Long Island against Hurricanes.



How many calories per gram are in the following food sources?
Sugar
Fat
Protein
Alcohol