Different kinds of Forces

• The four fundamental forces in nature are gravitational force, weak force, electromagnetic force, and nuclear force.
• Gravitational force acts between objects, electromagnetic force acts between electric charges, weak force acts between subatomic particles, and strong nuclear force acts between elementary particles.
• Nuclear force is the strongest, gravitational force is the weakest, and electromagnetic force is the second strongest.
• Gravitational and electromagnetic forces are long-range forces, while weak and strong nuclear forces are short-range forces.
• In addition to the fundamental forces, mechanics also involves frictional force and elastic force.
• Elastic force is the force that causes a stretched spring or a bent ruler to retain their original form.