Forces in action _______________________________________________________________________________________________________________________________________________________________________________________
3. Fundamental forces of Nature
One of the most basic and important tasks of physics is to classify the forces of nature.
There are different types of forces as friction, magnetism, gravitational forces, and so on.
All forces in Universe can be classified in 4 types, the fundamental Forces of Nature
GRAVITATIONAL: All objects with mass attract each other with a gravitational force. WEIGHT= m x g
ELECTROMAGNETIC FORCE: They use attraction and repulsion between positive and negative charges.
NUCLEAR FORCES:
WEAK NUCLEAR FORCE: These are the forces involved in the radioactive activity of atoms.
STRONG NUCLEAR FORCE: Positive protons in the nucleus are held together by the strong nuclear force.
Watch the video and learn about the four fundamental forces of Nature.