First Law Of Motion Easy Definition

Newton s first law of motion also known as the principle of inertia says every body perseveres in its state of being at rest or of moving uniformly straight forward except insofar as it is compelled to change its state by forces impressed 1 i will argue that inertia is an inherent principle and that inertia and newton s first law are in this way natural in the aristotelian sense.

First law of motion easy definition.

Newton s first law of motion states that a body continues its state of rest or of uniform motion in a straight line provided no net force acts on it. If a body is at rest it remains at rest or if it is in motion it moves with uniform velocity until it is acted on by a net force. This law does an introduction of motion of the object and the force acting on it. Velocity is a vector quantity which expresses both the object s speed and the direction of its motion.

The first law states that if the net force the vector sum of all forces acting on an object is zero then the velocity of the object is constant. First law of motion synonyms first law of motion pronunciation first law of motion translation english dictionary definition of first law of motion. Look it up now. This post includes newton s first law of motion examples.

That means if you kick a ball it will fly forever unless some sort of forces act on it. A net force means that the forces acting on the object are not balanced. First law sometimes called inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

The focus of lesson 1 is newton s first law of motion sometimes referred to as the law of inertia. First law of motion the first law says that any object in motion will continue to move in the same direction and speed unless forces act on it. Newton s first law of motion is often stated as. Define first law of motion.

Newton s first law states that if a body is at rest or moving at a constant speed in a straight line it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force this postulate is known as the law of inertia the law of inertia was first formulated by galileo galilei for horizontal motion on earth and was later generalized by rené descartes. English dictionary definition of first law of motion. In this article we are going to talk about newton s 1 st law. Therefore the statement that the object s velocity is constant is a statement that both its speed and the direction of its motion are constant.

Newton s 1st law of motion deals with the inertial property of matter therefore newton s 1st law of motion is known as the law of inertia. When you kick a ball forces start to act on it immediately. Sir isaac newton published three laws in the 17 th century. A uniform velocity means that an object moves at a constant speed without changing direction i e.

As strange as this may sound it s true. Understanding first law with an example frequently asked questions.