Phabulous Physics

Force diagrams take the lines of schemas and simplifies it down to a single object so you can easily see what forces are acting on it.

Schemas are a visual representation of objects and forces. Bubbles are objects and vectors are forces. If a vector is dotted it is a non-contact force.

Equations for balanced objects always add up to 0 in the X and Y directions. These represent how balanced forces when added up =0 b/c change in velocity is 0. when you have vectors at angles you can you SOH CAH TOA to find the seperate X and Y values of the forces. In unbalanced forces these add up to something that is either < or > 0 making them never = to 0. this means that the change in velocity is not 0.

For every statements are a sentence representing speed of a situation, or better put a rate of change. This can be represented by the slope of a line on a graph or the speed of an objects's motion.

These are all ways to relate changes in position, time, velocit, and acceleration. When speaking of mechanics all of the ideas are ocnnected through fractions and slopes making it a system that is easy to understand.

What it is

A rule that the universe follows proposed by Isaac newton. The third rule talks about how forces push on objects

When it's prevelant

Whenever there is a force the third law is always in affect

What happens to objects

When a force is acting on an object the object applying the orce and the object which is being affected they push on eachother with an equal force

pairs

Forces always come in equal pairs, this is what the third law implies

Definition

A force is a push or a pull on an object

When they occur

All forces occur when two objects
interact either through contact or
non contact forces

What kind

Forces come in contact and non-contact
an example of non-contact include Gravity,
electromagnetic,and nuclear forces. Contact
includes basically everything else.

What is Acceleration

Accerleration is when
the change in Velocity is
greater than 0 on an object.
Note: velocity can by 0 and
it could still have acceleration

Examples of Acceleration

-A ball rolling down a hill
-A 500M sprint
-Airplane taking off

Velocity and how it relates

Change in velocity is what
Accerleration is. If qualified
into a velocity graph the slope
will be the Acceleration

What is velocity

Velocity is speed with direction.

Examples

30M/S North
100mph south
9.8m/s down

speed and how it relates

Speed is change in position over change in time. So change in position over change in time with a direction is velocity.

position

Change in position is speed and speed with direction is velocity. When put into a graph the slope of a position and time graph is the Velocity.