Topic one: Force, Motion, and Energy
Topic one: Force, Motion, and Energy
L one: First Law of Motion: Law of Inertia
TYPES OF MOTION:
TYPES OF MOTION:
One. Uniform Motion - movement of an object in a straight line with a constant velocity.
· acceleration of the object is zero
Two. Uniform Accelerated Motion - object's velocity changes at a constant rate, resulting in a constant acceleration
· acceleration is not zero
Dynamics (branch of Mechanics) - study of the reason why objects move the way they do.
Isaac Newton
. formulated the Three Laws of Motion
. describes the relationship between the motion of an object and forces acting on it
Force - push or pull exerted by an object or another object
· vector quantity
· SI Unit: One Newton equals one kilogram meter per second squared
Net Force - vector sum of forces acting on a body
· F sub net equals F one plus F two plus F three plus dot dot dot plus F sub n