1 / 11

Newton’s First Law

Newton’s First Law. (law of inertia). What is Inertia???. INERTIA is a property of an object that describes how hard it is to change its motion more mass = more inertia. Newton’s First Law (law of inertia).

doloreslee
Télécharger la présentation

Newton’s First Law

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Newton’s First Law (law of inertia)

  2. What is Inertia??? • INERTIA is a property of an object that describes how hard it is to change its motion • more mass = more inertia

  3. Newton’s First Law (law of inertia) An object at rest will continue to stay at rest unless an outside force acts on it and …

  4. Newton’s First Law (law of inertia) an object in motion will continue to stay in motion at constant speed in a straight line unless an outside force acts on it

  5. What exactly is a force??? • FORCE is a push or a pull applied to an object that will cause it to start moving, stop moving or change its speed or direction

  6. ??? What are some examples of outside forces that would act on objects???

  7. Friction • FRICTION is the force that acts in the opposite direction of the motion of the object (A cart will roll until friction stops it)

  8. Gravity • Gravity is a force of attraction between 2 objects • Everything has gravity, but it is not felt unless the objects are very big! (Like planet-sized big!) • On EARTH gravity = 9.8 m/s2 • On other planets it is different! • In space it is ZERO!!! (a ball that’s thrown will travel out from your hand until gravity pulls it to the ground)

  9. How Gravity Affects Your Mass • MASS is the measure of the amount of matter in an object • measured in grams (g) or kilograms (kg) • WEIGHT is a measure of the force of gravity on the mass of an object • measured in Newtons (N) (NOT POUNDS!) Weight = Mass x Gravity

More Related