Describe a change caused by kinetic energy as well as a change that involves potential energy

KE= energy associated with motion

PE= energy associated with position

KE example= throwing a ball (ball moving= KE), skateboarding

PE example= dropping a book (since the book is held above the ground, it has PE)(as it falls, PE is converted to KE)

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

massxgravity x heght=weightxheight= pe

4900=490xh

h=10