Force

Force- The push or pull.

Different Forces-Gravity, Push/pull,Magnetic

Net Force-Results of sum or differences.

Balanced→Net force is 0

Unbalanced→With some kind of net force in any direction.

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April 19, 2011 at 7:09 pm Leave a comment

Conservation of Energy: Roller coasters

Built a roller coaster out of paper, and had to figure out how to make the paper strong enough to roll a marble down it and we had to include a three turns and 2 hills and a 1 loop, then we tried to make it so it would loose as little velocity as possible.

We made ours really tall so it would gain as much speed as possible but we didnt make it sturdy enough so it lost a lot of velocity into the roller coaster  because it moved and took out a lot of speed.
The reason we were doing all this is so we could find the kinetic energy with the marble at the end of the coaster, and to do that we started with the potential energy and tried to get the marble to be the same as the potential energy but sense it lost a lot of velocity into the coaster we found that the kinetic energy at the end had lost about 95% of the potential energy to start will.

April 11, 2011 at 7:58 pm 1 comment

Gravity and Acceleration

The question is, Does the velocity of something falling increase?

The way we answered this question was by, we took a strobe light and get a camara that could leave the shutter open and use the strobe light for the lighting in the picture.

So the answer to the question is the velocity increases with the distance it falls.

March 1, 2011 at 8:27 pm Leave a comment

What is Matter

What is matter? Anything that takes up space. Properties of matter. Physical Properties-Color,Texture,Shape,Size, and if it conducts electrisity. Chemical Properties- How a substance changes into other substances.
Measuring matter- Process of telling how it looks with numbers.
Length- Higth, width.
-Ruler
-Tape messeur
Mass and Weight- Mass is the amount of matter in an object.
Weight is how gravity acts on mass.
-Beeker
-Graduated Beeker
Volume- Amount of space something takes up
-Beeker
Density- The amount of mass per volume.

February 10, 2011 at 8:35 pm Leave a comment

Deformation of the Crust

The state of balance between the thickness of the crust and the depth at which it rides on the astheonosphere is called: Isostasy

The increasing weight of mountains causes the crust to? Fracture

The force that changes the shape and volume of rocks is? Stress

The type of stress that pulls rocks apart, making them thinner is? Tension

ShearingSqueezes  rock together

Hight pressure and high temperature will cause rocks to? Deform

Upcurved folds in rock are called? Anticlines

Downcurved folds in rock are called? Synclines

Folds in which both limbs remain horizontal are called? Monoclines

When no movement occurs along the sides of a break in a rock structure, the break is called a? Fracture

When a fault is not vertical, the rock above the fault plane makes up the? Hanging Wall

A nearly vertical fault in which the rock on either side of the fault plane moves horizontally is called a? Thrust fault

The largest mountain systems are part of still lager systems called? Belts

Mount St. Helens in Washington State is an example of a? Volcanic Mountain

February 8, 2011 at 9:16 pm Leave a comment

Mountain Formation

What 3 type of plate colisions build mountains-

Collistion between continental and oceanic crust: As the oceanic crust was subducted pieces of crust called terranes were scraped off According to the microplate terrane theory, they became part of the continental crust.

Collision between oceanic crust and oceanic crust: As the oceanic plate subducts, water from the subducting lithosphere induces partial melting of mantle material to form magma.

Collision between continents: Mountains can also form when two coninents collide. the himalaya mountains were formed by just such a collision.

January 31, 2011 at 8:23 pm Leave a comment

The Result of Stress

Compare folding and faulting as responses to stress: Folding is the bending of rock without breaking. Faulting is when the pressure has become so great that it breaks causing the fault.

Describe four types of faults:

Normal Fault:Hanging wall moves down relative to the footwall.

Reverse Fault:Fault in which the hanging wall moves up relative to the footwall.

Thrust Fault:A geological fault in which the upper side appears to have been pushed upward by compression

Strike-slip fault:a geological fault on which the movement is along the strike of the fault

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January 20, 2011 at 8:31 pm Leave a comment

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