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Energy and Transformation I, image, image, image, image, FUNDAMENTALS.,…
Energy and Transformation I
Kinematics
Describes the motion of points, objects and systems of groups of objects, without reference to the causes of motion. AKA “geometry of motion.”
Vectors
vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.
URM
Uniform rectilinear motion
UARM
Uniform accelerated rectiliear motion
movement
reference
distance & displacement
measure of the trajectory
distance between 2 points
change in position
velocity remains constant
speed can increase or decrease
Free fall
It is the movement that acquires a body that moves from rest under the action of gravity in a place where air resistance is disregarded. It is studied as a one dimension movement.
Projectal motion
Projectile motion is the motion of an object thrown (projected) into the air. After the initial force that launches the object, it only experiences the force of gravity. The object is called a projectile, and its path is called its trajectory.
Laws of Newton
The first law, AKA,
law of inertia,
states that if a body is at rest or moving at constant speed in a straight line, it will continue to do so unless it is acted upon by a force.
The second law states that the force F acting on a body is equal to the mass m of the body times its acceleration (
F = ma
).
The third law, AKA,
action-reaction law
, states that the actions of two bodies on each other are always equal in magnitude and opposite in direction.
Unit Sistem
how we measure everything
Us customary
volume: gallon
speed: feet/second
mass: ounce, & pound
acceleration: feet per second squared
second
length: inch,foot yard
International
volume: litter
speed: meter/second
mass: kilogram
acceleration: meter per second squared
length: meter
circular motion: radiant/second squared
Vertical launch
Is when an object is launched vertically up or down from a height H without taking into consideration any kind of friction with the air or any other obstacle.
FUNDAMENTALS.
APPLICATIONS.
