Energy❤️
Energy is the ability to do work
Mechanical energy
The sum of the gravitational potential energy and kinetic energy
Formula: Ek+Ep
Gravitational energy
The energy an object has due to its position in the gravitational field relative to some reference point
Formula: Ep=mgh or U=mgh
g=9.8m.s^-2
Kinetic energy
The energy an object possesses as a result of its motion
Formula: Ek=
The principle of conservation of mechanical energy
The total mechanical energy in an isolated system
Formula: Ek1 + Ep1 = Ek2 + Ep2