Mass and Newtons first law

Melissa Gutierrez
Period 2
 11/20/14

1) I usually ride bikes when its not so cold out, and i notice myself riding down a hill, usually i notice that if I'm on a very steep hill going down, i can let go of the bars and i would be going down still at a constant speed. Inertia shows how "things like to stay where they are" as if i didn't have friction, id be going on forever!

2)  Cars. Some cars i see, everyday really do tie into inertia. If a car is going 90 on the freeway, inertia makes it go , on and on until friction stops it and gravity keeps it down.

3) Roller Coaster! when i see a roller coster we obviously have that scary moment in which we're going slowly up the ride, but then we also have that moment in which the coaster goes downward into a plunging ride. Inertia would send you flying, forever but the seatbelt keeps you down.

Inertia Investigation

Melissa Gutierrez
Period 2
11/17

1. An example of "Inertia" that I saw today, was a tree, no matter this rain, snow, summer or fall in Boston a simple tree goes through inertia, where everything around it changes, moves and does everything but it stays still. 
2. Another example of "Inertia" that always stays still would be a building, it has the same rules as a tree, much happens around it. 
3. A final example of Inertia would be shaking a bottle of ketchup. When bringing the bottom down, the suddenly stopping it, inertia is what causes the ketchup to come out of the bottle.

Balanced & Unbalanced

Melissa Gutierrez 

Period 2 

11/13/14 

This is an example of a balanced force. A balanced force would be when all the forces are equal to equal. 

This is an example of unbalanced force, the net force isn't equal. The unbalanced force is when the net force isn't equal. 

Free Body Diagrams

Melissa Gutierrez
Period 2 
11/12/14 

this is a 10 KG boulder, in this diagram it shows as always, gravity , because gravity always pulls the object to the ground, then theres normal force holding the boulder. then , theres applied force moving this to the right, as the boulder moves this create friction. 

Vectors & Scalar

A scalar quantity is a quantity that is fully described by a magnitude/size without anything else! However a vector quantity, has magnitude as well as a direction... 
An example of what we didn't cover in class would be this youtube video! https://www.youtube.com/watch?v=FvcHKhdaAyw this video expresses projections through scalar and vectors ? id  like to learn more about that.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

Four Forces

There were 4 forms of forces we talked about today in class, the first one was 

1. Applied Force (Fapp) is when you make contact with an object to make it move. So for example, today I had a ball. The ball needed force to move it which i applied myself! That would be the definition of Applied Force. 
2. Gravitational Force (Fg) is when gravity takes control over the object. So for example, today i used gravitational force by jumping, and the gravitational force pulled me to the ground! That would be the definition of Gravitational Force.
3. Normal Force (FN) is when an object requires no force. For example, today I came home to find my laptop sitting on my desk. That required Normal Force. 
4. Tension Force (FT) is when the force has a type of pull to it that requires back spring. For example, today i used a scrunci today to basically explain a bun and i pulled the scrunchi to my wrist a couple times. The tension force pulled the band back on my wrist.