In all the excitement of giving exams last week for you all PLUS my lecture sections, I thought I had set up your week 6 learning module. Instead, you had an unplanned vacation from studies.But NOW there are some concept guides up, along with mini-quizzes.
- Momentum, the dynamic quantity that controls tackling and other interactions between two objects. The tackler with more momentum "wins" the interaction. Momentum is a vector.
- Energy, the directionless quantity that measures capacity for doing work. A moving object can be described with a momentum and an energy.
The quantities energy and momentum go together, and they are concepts that we use all the way up to advanced research in the theory of relativity and quantum theory. For instance, a photon of light technically has zero mass, but it still interacts with the gravitational field of the sun and curves out of its normal straight line path -- because the photon carries momentum and energy!
To make up for the forced vacation, I will set up a bonus podcast for you and a bonus quiz with a few brain burners. The bonus points will go on top of your exam total. Nice.
Light cones near the event horizon of a black hole.
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