lunes, 21 de agosto de 2017

What is energy

Kinetic energy
Potential energy
Mechanical energy
Chemical energy
Gravitational energy

Energy is the ability to work, energy can not
Be destroyed or created but it can be transformed. We found energy on the sun or the light balls We use energy for run,eat,swim etc

Kinetic energy: It is the energy that is in motion wen you move a ball or when you throw a paper it is moving so it is kinetic energy.

Potential energy: It is the energy inside an object if it is not moving.

Mechanical energy: It is potential and kinetic energy, When you have a ball on your hands it has potential energy. but suddenly you throw it, now it has kinetic energy. When they both are used in a object it is named mechanical energy.

Chemical energy: It is caused by several chemical reactions.

Gravitational energy: It is the force the gravity use to push us down

          Juan Esteban Hincapie

How does a solid become a liquid (freezing)

All substances have something called ( melting point ) when the solids get the temperature of the melting point it becomes liquid. for water...