Force is a physical quantity that describes the interaction between two objects or systems that causes a change in motion or shape.
Force is measured in units of newtons (N) using a device called a spring scale or a force meter.
There are four fundamental forces in nature: gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force.
According to Newton's Laws of Motion, force can cause an object to accelerate, decelerate, or change direction.
No, force cannot be seen because it is an invisible and intangible concept. However, we can observe the effects of force on objects and systems.