Newton's first law of motion - Forces and Newton's Laws
Newton's first law of motion
Lessons
Notes:
In this lesson, we will learn:
- Newton's first law of motion
- Inertia
- Explaining physical phenomena using Newton's first law and inertia
Notes:
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Newton's first law of motion can be stated as "if no net force acts on an object, then the velocity of the object does not change."
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Net force is a vector sum of forces acting on an object.
- Newton's first law is also called the law of inertia. Inertia is an idea that originated from Galileo, which says that objects have a tendency to resist changes in their motion:
- Objects in motion will tend to stay in motion by continuing at their velocity in a straight line, and objects at rest tend to stay at rest.
- Objects with more mass have "more inertia". It is more difficult to get a more massive object change its velocity by speeding up, slowing down, or changing direction.
- Objects in motion will tend to stay in motion by continuing at their velocity in a straight line, and objects at rest tend to stay at rest.
- Objects with more mass have "more inertia". It is more difficult to get a more massive object change its velocity by speeding up, slowing down, or changing direction.
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Intro Lesson
Introduction to Newton's first law
