Projectile motion is when an object only has one force acting upon it which is the force of gravity
air resistance is negligible
object only moves in x and y direction
the object will always be accelerating -9.8 m/s/s in the y direction
Examples
Free fall
an object being shot/fired
Important Equations
X direction
Y direction
This explains projectile motion problems with angles very well
Uniform Circular Motion
Definition
When an object has a constant speed and is traveling in a circular motion
Examples
Taking a turn in a car with cruise control
an object going around a circle
Important Equations
Not on the Equation sheet derived from net force equation because centripetal force is equal to the net force so you multiply mass times the acceleration which can be found with above equation
Universal Gravitation
Definition
Universal gravitation is that every particle attracts every other particle in the universe with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between the center of the two particles
applies to everything with mass in the universe
Formula
Force on both objects are the same and are third law pairs
m1 and m2 represent the 2 masses
G represents the universal gravitational constant
6.67 * 10-11 (N * m^2)/(kg^2)
The ending of the video is on a different section only until 5:00 is relevant.