PHY202H1 Lecture Notes - Lecture 3: Potential Energy, Kinetic Energy
Document Summary
Newton"s gravitation and landing on asteroids and comets. Observations from earth show that planets in the solar system follow elliptical orbits around the sun. Newton explained the above by supposing that all objects attract one another due to the force of gravity. For two objects, one with mass m and the other with mass m, the force of gravity on each of them is fg = the distance between them. , where g is a constant and r is. The fictional asteroid in armaggedon is large compared to the biggest asteroid in our solar system, which is called ceres. Potential energy- when we hold a pen, then it drop to the ground due to the gravity. When it drop to the ground , the potential energy become less and less when it reaches to the floor to zero. Energy can not be created or destroyed, it can be stored or transferred. Potential energy is an stored energy in an object.
