Edexcel summer 2013 p-1 physics q no 9 c iii
As it (the paper plane) flies the paper aeroplane loses gravitational potential energy. What happens to this energy?
My answer was : turned into kinetic energy.
But I found in the markscheme that the correct answer is 'lost as heat'. I also found there 'ignore kinetic energy.'
So what is wrong with my answer. Why is kinetic energy said to be ignored??
Please please help me.