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- Inertia is described as a physical object’s resistance to changes in speed and state of rest. It keeps an object moving in the same direction unless acted upon by another force. The more inertia, the greater the resistance to acceleration or deceleration.
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Revision notes on 5.7.5 Inertia for the AQA GCSE Physics syllabus, written by the Physics experts at Save My Exams.
What is inertia and can you give an example? Inertia is a property of matter by which it continues in its existing state of rest or uniform motion in a straight line unless that state is changed by an external force.
Inertia is defined as a property of matter by which it remains at the state of rest or in uniform motion in the same straight line unless acted upon by some external force. Table of Contents: What Is the Law of Inertia? Galileo’s Free Fall Experiment. How Did Galileo Explain Inertia? Types of Inertia. Law of Inertia examples.
- 108 min
- According to the law of inertia, An object will continue to be in the state of rest or in a state of motion unless an external force acts on it.
- Law of inertia is also known as Newton’s first law of motion.
- The tendency of moving back when the stationary bus starts to move. Moving forward when a sudden brake is applied.
In simple terms, it is the opposition to a change in the state of motion (sometimes to the body’s momentum). The law of inertia is one of the basic principles in classical mechanics that are still employed to explain the motion of bodies and how they are impacted by the applied forces on them.
Inertia is the tendency for an object at rest to remain at rest, or for a moving object to remain in motion in a straight line with constant speed. This key property of objects was first described by Galileo.
Define mass and inertia. Understand Newton's first law of motion. Experience suggests that an object at rest will remain at rest if left alone, and that an object in motion tends to slow down and stop unless some effort is made to keep it moving.
Figure \(\PageIndex{1}\): An example of a velocity vs. time graph for a collision of two objects with different inertias. In this picture, object 1, initially moving with velocity \(v_{1i}\) = 1 m/s, collides with object 2, initially at rest.
