Weight on planets

This animation shows the concept of weight vs mass. Weight is the force exerted by gravity on a mass. Different planets have different strengths of gravity, meaning that any visitors from Earth would feel lighter or heavier.
 
Discussion questions
  1. On which planet is the gravity strongest? Why is that the case?
  2. On which planet is the gravity weakest? Why is that the case?
  3. How much lighter would the astronaut feel on the moon in comparison to the Earth?

 

Downloads: Flash source file (.fla) Flash (.swf) Windows executable (.exe)

Mac application (.app)