Forces, work, and energy https://docs.google.com/drawings/d/17zjOZ9cG9wl…
Forces, work, and energy
Force diagrams and/or representations
Force diagrams represent what forces are acting upon an object.
The power of the type of force used is usually expressed by arrows (it is important to make sure that sometimes the arrows might not be the same length).
I can make a force diagram for my water bottle rocket, by finding out what forces are action upon it.
Definition: Force is a push or pull upon an object resulting from the object's interaction with another object.
When the interaction ceases, the two objects no longer experience the force.
Forces only exist as a result of an interaction.
My water bottle rocket will interact with the forces gravity, air resistance, and friction.
Types of forces:
Air Resistance Force
If I put a springy substance on the nose, the rocket will use the spring force to bounce off the ground while it lands.
I can use this formula to find out which forces act upon my rocket while it is in the air, or ground.
Types of Energy (the capacity for doing work):
Kinetic energy - the energy of a body or a system with respect to the motion of the body
Potential energy - the energy of a body or a system with respect to the position of the body
Formula: P.E. = m
m stands for mass
g stands for gravitational acceleration
P.E. stands for Potential Energy
h stands for height
Mechanical energy: The sum of both potential energy and kinetic energy.
Formula: W = FD
Definition: When a force acts upon an object, making that object move.
Information in courtesy of: