Newton's First Law

Overview Edit

Isaac Newton, in the 17th century, put forth three laws that explain why objects move (or don't move) as they do and these have become known as Newton's three laws of motion. Newton's first law, the law of inertia, says: an object at rest will stay at rest unless an external force is applied to it; and an object in motion will not change its velocity, unless an external force is applied to it. Basically, this means that there is a natural tendency of objects to keep doing what they are doing.

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  • Newton didn't discover gravity so much as he was the first to explain it in a detailed quantitative manner. Newton was the first to posit ... (more)
    4 days ago · 3 likes
  • 1st Law states that an object will continue without a change in motion (constant velocity) if there are no outside forces. 2nd Law states ... (more)
    6 days ago · 2 likes
  • 1 month ago · 2 likes
  • Inertia (momentum) is linearly dependent on an object's mass. So is the gravitational force on the object. The first property is sometimes ... (more)
    1 month ago · 2 likes
  • This question isn't very well-defined--inertia relates to the flight of an airplane in different ways, depending on which component of the ... (more)
    1 month ago · 3 likes
  • [Newton's first law](http://socratic.org/physics/forces-and-newtons-laws/newtons-first-law) is a statement of _the principle of inertia_. ... (more)
    1 month ago · 2 likes
  • That may seem to be the case, but it is a fallacy. [Newton's second ... (more)
    1 month ago · 2 likes
  • Well, there is no inertia mass (unless you meant inertial mass) but mass can have inertia. This is [Newton's first ... (more)
    1 month ago · 2 likes
  • I believe what you are actually looking for is the [moment of inertia](http://socratic.org/physics/rotational-motion/moment-of-inertia). ... (more)
    1 month ago · 3 likes
  • The net force on an object is just the sum of all outside forces. So the affect of any non-zero net force is to cause an ... (more)
    1 month ago · 2 likes
  • [Newton's first law](http://socratic.org/physics/forces-and-newtons-laws/newtons-first-law) of motion is sometimes called the law of ... (more)
    1 month ago · 1 like
  • [Static equilibrium](http://socratic.org/physics/rotational-motion/static-equilibrium) is when the following two conditions are met: 1) ... (more)
    1 month ago · 2 likes
  • [Newton's first law](http://socratic.org/physics/forces-and-newtons-laws/newtons-first-law) affects all objects the same way - including ... (more)
    1 month ago · 2 likes
  • There are many examples of [static equilibrium](http://socratic.org/physics/rotational-motion/static-equilibrium), but basically any system ... (more)
    1 month ago · 2 likes
  • [Newton's First Law](http://socratic.org/physics/forces-and-newtons-laws/newtons-first-law), the Law of Inertia, is what makes roller ... (more)
    1 month ago · 2 likes
  • In the absence of friction, the inertia of a puck will keep it moving in a straight line at a constant speed. The inertia of an object is ... (more)
    1 month ago · 1 like
  • The net force may change with movement, but in general it does not. In the case of static vs kinetic friction, the net force can decrease ... (more)
    1 month ago · 2 likes
  • Equilibrium is the state in which the sum of all the forces on a body (the net force) and, independently, the net ... (more)
    1 month ago · 2 likes
  • Remember the net force means, "the SUM of all forces" To understand a net force of zero you can visualize a situation where two friends ... (more)
    1 month ago · 2 likes
  • 1 month ago · 2 likes

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