Curated OER
Einstein's Relativity (4): Gravity and Acceleration
Here it is, the fourth component true to Einstein's Theory of Relativity. The aspects of gravity and acceleration are presented as they relate to the theory of relativity. This video sums up how gravity, acceleration, time dilation, and...
Khan Academy
Khan Academy: Newton's Law of Gravitation: Would a Brick or Feather Fall Faster?
Presents an analysis of a problem where a brick and a feather are dropped on the moon to see which would hit the ground sooner. This is compared to the gravity on the Earth, where the air resistance on the objects would produce a...