Hey!
I can help you with the second one, as I didn't get first question.
What's the relationship between kinetic energy and object's temperature.
Well, Kinetic energy of particle's of an object increases with an increase in temperature and decrease with the decrease in temperature.
This is so because when you heat any object, molecules vibrate more and causes more movement and more movement leads to interaction with more molecules in less time and this increases movement of molecules and thus kinetic energy increases, and it's vice versa if temperature decreases.
Hope it helps...!!!
