kenetic energy
The kind of potential energy in a catapult is known as elastic potential energy. The potential energy that is in the catapult is used when you activate the catapult and the rock (or any kind of ammo) fires.
In the elasticity of it being held down. It depends on which catapult mechanism, all catapults are powered by potential energy; for example the simple catapult is an elasctic band that is pulled back converting the energy used to pull it back (usually muscle power) into the potential energy in the stretched elastic band.
kinetic energy to gravitational potential energy
potential energy
The energy stored in the stretched rubber (or elastic) is converted into the kinetic energy of the missile.
The kind of potential energy in a catapult is known as elastic potential energy. The potential energy that is in the catapult is used when you activate the catapult and the rock (or any kind of ammo) fires.
It relied on a torsion (twisting) to provide the energy for the throw, as opposed to a counterweight.
A Trebuchet Catapult
In the elasticity of it being held down. It depends on which catapult mechanism, all catapults are powered by potential energy; for example the simple catapult is an elasctic band that is pulled back converting the energy used to pull it back (usually muscle power) into the potential energy in the stretched elastic band.
kinetic energy to gravitational potential energy
No, a canon is not a type of catapult. A canon is a type of rule, principle, or accepted body of work, while a catapult is a device used to launch projectiles over a distance.
They used the catapult for war.
A catapult is a type of siege engine, sort of a non-chemical artillery. They hurled heavy spears by releasing the energy stored in torsion. In Britain, a "catapult" is an elastic toy that throws marbles or small stones, in the US the same thing is called a slingshot.
potential energy
To achieve the most distance, you should set your catapult to release a projectile at 45 degrees angle relative to horizontal plane.Higher stored potential energy doesn't neccesarily mean more distance. Distance of the shot depends mainly on starting velocity, which in turn depends on rate at which catapult transfers the energy to the projectile. A limit for that depends on construction of the catapult.
You use a catapult to launch things into the air.
There are more but these are just a few: Aircraft Catapult, Slingshot Catapult, and an Onager Catapult.