NDLI: Mass and Inertia

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Force and Newton's Law of Motion

Free Body Diagram

Newton's First Law of Motion

Mass and Inertia

Newton's Second Law of Motion

Application of Second Law of Motion

Newton's Third Law of Motion

Weight and Normal Force

Normal Force Example # 1

Normal Force Example # 2

Normal Force Example # 3

Applications of Newton's Laws of Motion

Frictional Forces

Centripetal Acceleration and Circular Motion

Law of Universal Gravitation and Kepler's Law

Mass and Inertia

Content Provider	AK Lectures
Description	Recall that the Law of Inertia states that any object that is not experiencing a net force will continue in its current state of motion. So how exactly would one define inertia? Inertia can be defined as the tendency or ability of an object to resist change in motion. In fact, mass is usually defined in terms of inertia. Mass is the quantity or measure of inertia in an object. The more mass found in an object, the more inertia it contains and therefore the greater its tendency to resist change. That is precisely why applying a net force on two objects of different masses will cause the lighter mass to accelerate more than the object that has a higher mass. For example, if we apply a net force on a truck that has a mass ten times that of a small car, that net force will accelerate the truck ten times less than the smaller car. Although we use mass and weight interchangeably in everyday language, a clear distinction exists between mass and weight in physics. Mass is a scalar while weight is a vector and represents the force of gravity on an object, usually close to the surface of the earth. A person has the same exact mass on the moon as he or she has on earth. However, that person's weight is different on the moon (less than on the earth).
Language	English
Access Restriction	Open
Subject Keyword	Classical Physics quantity measure mass physics objects Inertia state ability
Content Type	Video
Educational Role	Teacher Student
Educational Use	Self Learning Lecture Reading
Resource Type	Video Lecture
Education Level	Under Graduate
Subject	Classical mechanics; solid mechanics

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