Reflection

March 12th, 2010 by YouJin Kim

In making our scratch project, our group member is Junseok, Nam and I. We are now making super Mario game. We already made a presentation, and made a spirit to move and jump in another group’s scratch draft. I think we collaborated well.

Science Lab

January 27th, 2010 by YouJin Kim

Prediction
My prediction was as the ramp’s steepness increases, the car’s velocity will

also increase.  The reason of this belief was that the slope of the hill

will be added to the speed of the car.  Another prediction is

heavier the mass is, the object will run down the ramp faster. I thought the

increased weight of the object would be added on the velocity of an object.

Un-massed Car Table

chart_2_unmassed_science_lab

Massed Car Table

chart_1_science_lab

Position and Time Graph

position_and_time_graph

Conclusion

Car rolling down the hill travels acceleration. Whether the car is positive or not,

when an object has increased it’s velocity or speed in a given time.Evidence

could be seen in the Lab table and graph. In the Lab table, velocity

of massed and un-massed car increases gradually over time. Also, the

line in the graph isn’t straight, curved. These two evidences show that at first,

car had started slowly, but it traveled faster and faster. However, if cars

had constant velocity, they would have had same velocities in the table,

and straight line in the graph.  The steepness in elevation of slope does

affect how car moves. We did experiments in 10, 15, 20, and 25 height

and they all gave us the same result. Higher the elevation is, higher the

velocity would be in the table. This result matches up with my prediction

precisely.  Attaching the mass affected the care moving down the ramp.

The table showed interesting result. It showed that until 15cm elevation,

velocities of massed car were higher, then from 20cm elevation,

velocities of un-massed car have increased. Lab table had shown

inconclusive result that is totally different with my prediction. I think

this result has occurred due to some factors relate to the relationship

between slope and gravity.

How to make a new post

January 21st, 2010 by YouJin Kim

how_to_make_a_new_post1

How to make a new post

1. Go to Wikipedia Dashboard

2. Go to ‘Add New’ in the Post section

3. Write whatever you want

4. Put your post on a relevant tag and category to organize your posts

5. Press ‘Save Draft’ if you want to save the post, but doesn’t want to publish it

6. Press ‘Publish’ if you are finished

p.s. Image will help your understanding

Boarding Game

January 21st, 2010 by YouJin Kim

Bowling Time

January 21st, 2010 by YouJin Kim

How to play
1. Location of the ball is chosen randomely each game.
2. Look at the hook gauge for appropriate moment.
3. Ball will roll down if you press ‘PUSH’ button.
4. 5 frame is given to each stage.
5. If you hadn’t achieved the mission point, the game is over.

CONTROL: Mouse left button