Question

How does an airplane's kinetic energy and potential energy change as it takes off and lands

Answer 1

1) take off: potential energy equals to 0, kinetic is very high as it's seeped up
2) assending: potential energy grow, kinetic energy depends if pilot accelerates much or not, but normally he is, so there is some kinetic energy as well but less than on take off 
3) flying: potential energy reaches it's maximum, there is some kinetic energy as aircraft flys
4) descending: potential energy goes down, kinetic increase due to gravity.
5) landing: potential energy is zero, kinetic is max until pilot press brakes.

Answer 2

Mostly gravity voloume and sometimes what it is made of