Newton’s laws of motion are fundamental principles in physics. They are often referred to by other names that describe their essence.
1. **Newton’s First Law**: This is also known as the **Law of Inertia**. It states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
2. **Newton’s Second Law**: This is often called the **Law of Acceleration**. It explains how the velocity of an object changes when it is subjected to an external force. The law is mathematically expressed as F = ma, where F is the force applied, m is the mass of the object, and a is the acceleration.
3. **Newton’s Third Law**: This is commonly referred to as the **Law of Action and Reaction**. It states that for every action, there is an equal and opposite reaction. This means that any force exerted on a body will create a force of equal magnitude but in the opposite direction on the object that exerted the first force.
These laws are foundational in understanding the motion of objects and are widely used in various fields of science and engineering.