Monday, April 18, 2011

Tallest Building

The world's tallest free standing structure which is also and skyscraper is the Burj Khalifa which costed 1.5 billion dollars to make. Basically it has a triangular base and a  conic structure which supports it. This is a picture of it.

5 Cases

Here is 5 cases of projectile motion

Saturday, April 9, 2011

EGG GLIDER

To build our glider:
1.fold the piece of newspaper from corner to corner making a triangle.
2. fold the triangle from corner to corner to make a smaller triangle.
3. unfold everything and you'll end up with a square piece of paper with an x-crease
4. push inwards the x crease to make 4 wings.
5. flatten 2 wings with straws and tape them down.
6. use the straws and tape to make the other 2 wings stay at a specific place
7. put the egg which is inside the case in the big opening of the glider
8. tape the ends down and any other loose pieces paper.
Done

Monday, March 21, 2011

Motion Lab

Today we did a lab on motion. In the lab there was a machine that emitted sound and checked how long it took for the sound to return. Then the computer will imput the data and show you, your current velocity or displacement. There were several graphs that we were suppose to match. We each had several tries, and my teammates and I were able to save the ones that were our best match. After the lab we also have to do a lab report which will be assigned tomorrow.
Here are some of the graphs we walked:




Sunday, February 27, 2011

RHR 1 and 2

During class we learned about the 2 right hand rules. Right Hand Rule 1 and Right Hand Rule 2

Right Hand Rule 1 states that:
in a conductor when the thumb of the right hand points the direction of the current flow, the fingers will curl in the direction of the magnetic field.

Right Hand Rule 2 states that:
in a coil, when the thumb points to the north of the coil, the fingers curl towards to the current flow