For the same reason that all living things need energy, to live and thrive.
i dont know maybe they run and they waste it thats how
It varies.
To get the energy back for the horse, I would use a turnip.
How do you convert horse poop to energy?
Food
27% of your horse's energy for galloping and trotting races.
Kinetic energy is used when you ride a Horse
The more massive horse that is moving at the same speed will have greater kinetic energy. How do you define large and small? A small fat horse may have more mass than a large skinny horse.
There are a lot of ways of raising the horse's energy on Howrse. You only need to get it above 5%. If the horse goes to bed with 5% energy, it will wake up the next day with about 20% energy and low health and morale, but it will survive. Your horse must go to bed before midnight, or 24:00 in its history. No actions will be allowed after this time. If it is midnight there is no chance for your horse other than using the Black Orchid. The Black Orchid can be bought at the black market. It costs 1 pass and restores your horse to full health, energy and morale. If it is before midnight and any of these actions have not been done, do them now: Stroke your horse, feed a carrot, feed a turnip, give it water, use a salt stone (almost no energy, provides the best energy when energy is high). If these have all been done, open the Feeding box and give your horse concentrates. This won't give much energy as it works best when the horse has high energy. There are more tips here: http://craxor.free.fr
It has kinetic and sound energy.
a horse. its heavier
no
energy food barley or oats
Kinetic energy