Blog Post Everything I learned this semester

Things i learned this semester, lets see:

1. MASS IS NOT WEIGHT!!!
2. mr blake is a secret jamaican ninja (da whole ting and bureku technique)
3. There are two types of collisions: elastic and inelastic
4. Sheila the Amazon is greatly hated amongst the piranha men
5. Blog posts like to ruin my weekends... (just kidding)
6. PA's are only for those who enjoy 9-15 difficulties every week
7. Procrastination is the key to success
8. Balancing books on your head makes a great princess
9. Eggs are for eating not for throwing them off a three story roof
10. Mr. Blake and Da Freitas was part of the band Tenacious D but got kicked off a cliff for being too awesome...
11. The board not bored is never bored unless it's on a board
12. Free body diagrams are like someones icky aunt Clare, no one likes or wants them...
13. Never shoot something up in the air while moving, it'll only end in tears and/or broken bones or limbs or internal or external organs...
14. Never drop a bowling ball from the second floor, the people upstairs will be very mad
15. Apparently Da Freitas is very massive
16. Pulleys changes the direction and is not welcomed by most students
17. We will fight to the death with Nutter Butters!
18. Don't ask a science teacher for an answer, they will always manage to turn "how do you find PEg?" to "wow you know when I was your age, we never had iPods..." 
19. Don't play with the carts, unless you want to pay twice as much for a cart...
20. Finally I learned that physics is life, we live, breath, work and see physics everywhere.  That is why we do these blog posts, to compare everyday things to what we learned.

I realized some of the stuff I said may come off somewhat offensive.  I apologize to anyone who reads this and I hope you don't sue me.  I love all that read and follow and don't really want to go to jail for a few jokes.  I hope you guys have a wonderful Christmas and a wonderful New Year.

PS: Next year is the year of the dragon! For those of you who follow the Chinese zodiac.

Blog Post #14

Hey so this is me with another blog post.  So today I'm going to be talking about potential and kinetic energy.  So potential energy is basically when the energy when an object is not moving and kinetic energy is when an object is moving.  Also energy is never created nor destroyed just changes form, also known as the conservation of energy.  This means that if the potential energy of the football is something, that means that when it is thrown, over time, the potential energy will turn to kinetic energy, because its in motion.  So the energy will always be the same, as long as it stays in the air.  Once the ball lands, the energy is changed and when it is thrown again, there may be a different amount of energy.  So this is basically energy.  Sorry if it's a little confusing and grammatically incorrect.  It takes a lot of understanding to fully get it.  So enjoy this, I hope you learned something new and now you can say that I learned about energy.

Blog Post #13

Hey guys.  It's me again with another blog post.  Sorry but I'm going to be talking about egg drops again.  So this week we finally did our egg drops.  My partner and I made a type of box with tons of little foam cushions in it.  We made sure that the box was secure but has enough room for the impulse to push through.  There are a lot of physics involved in stopping an egg from breaking.  My partner and I realized that an average egg has a certain mass.  We used this to calculate the momentum of the drop.  We also realized that whatever we build has to not only cushion the egg from the bottom, but protect it from the impulse pushing down on the egg.  Therefore, we made a box full and placed the egg in the center.  This makes the egg experience the cushioning from below it and protect from the impulse pushing from above at all sides.  We also had to make sure that the egg doesn't shift around in the box.  So we made sure the the egg was secured in a protected foam wrapping and placed styrofoam packing-peanuts in the box.  This is because when the egg shifts around, it has inner liquids inside it, therefore if the liquids shift around a lot, the shell could crack from the inside.  We also had another problem that we never expected.  There was a ton of air pushing against the box.  This made the box shift slightly to the right.  However, this actually helped.  You see, when the air pushes on it, it increased the time of impact on the egg.  This will also help cushion the egg in a sense that the box will hit the ground slower.  But whatever the cause, the egg survived.  I believe the only modifications I would make on the contraption is maybe making adding a parachute, if possible.  If not, I would have just left it.  And that was our egg drop.  Sorry it was so long today.  But I hope you guys could try an egg drop.  And be creative on how to make it.

Hey guys I'm back with another installment of my blog.  This time I want to talk to you about egg dropping.  So, did you ever talk to your friends and go, how do I make an egg drop from a certain height without making it break.  So i have prepared a picture that I drew on my awesome Wacom tablet, of a person dropping an egg of a ledge.  You can easily find the velocity of a single egg by using various equasions.  We are going to say that this ledge is about 10 meters.  But to save space I solved for it already and got about 14 m/s.  Using this, we can solve for momentum and find out how much we need to slow it down, in order for it not to crack.  Anyways, I really haven't fully mastered it so I cannot say for sure that I know what I am doing, anyways, hope you enjoyed it.  I basically showed you the steps on how to not crack it, but it's really up to you to be creative in finding new and different ways.  So have fun and always be creative.

Blogpost #11

Sorry if this doesn't work I will upload it when I get a chance to use my computer again. Anyways tonight I will be talking to you about momentum yet again. Today's focus is on conservation of momentum. This is basically saying that in a select system or operation an object will not change when acted upon a different object. Confusing? Yeah I know. Let me explain through example. These balls are flying directly at each other. When they hit they will basically trade velocities or speeds. Meaning that if the first ball had a velocity of 4m/s and the second had a velocity at 5 m/s, when they hit, the first ball will bounce back at around 5 m/s and the second one will go at 4 m/s. So the next time you and your friend are throwing balls and your friend decides to throw a ball at you, don't be an idiot and throw the ball directly at that ball expecting it to bounce off and not hit you in the head. Anyways I'm hoping to get off of this chapter soon because it's making my brain hurt but for now I hope you enjoyed this demonstration of the conservation of momentum.

Hey there! I'm back with another blog post this time we started a new unit.  Today I'm going to talk to you about what I think is momentum.  I think momentum is that one moment in life where you go umm... Just kidding.  I think momentum is when an object is projected and as Newton's 1st law states, "an object in motion tends to stay in motion unless acted upon by an opposing force".  So that motion is momentum.  In this case my friend, I don't know if she wants me to tell her name online, is the object in motion and she wants to stay in motion even at the bottom.  But friction will make her stop.  But thats besides the point.  Anyways thats what I think momentum is.  I hope you don't listen to me because I am probably wrong.  Anyways until next week.

Blog Post #10

Hey it's me again with yet another blog post on force.  Today I am going to talk to you specifically on Newton's 1st law.  This law states that an object in motion tends to stay in motion unless acted upon by an outside unbalanced force.  This basically means that if an object is in motion, taking my picture of a cross country runner as an example, and say he is running at a constant velocity, the moment he crosses the finish line, he will be acted upon by an opposing force.  Meaning he will stop.  However, he is not only stopping, but he is decelerating or accelerating in the opposite direction.  Because if he were to stop suddenly, he would most likely fall over or trip.  I believe this is due to momentum or something (we didn't learn that yet).  But anyways I believe that is what you need to know about Newton's 1st law.  Next week I will be hopefully going over Newton's 2nd law.  

Blog Post #9

Hey there I am not sure if I used this pic yet because this pic was taken back from a month ago.  Anyways I will be talking to you about force today again.  I am going to talk about "freebody diagrams" (without the diagram).  So as you can see this is a picture of a runner.  You may not know this but this was taken at the finish line.  So he is decelerating.  Free body diagrams measure anything that force pushes or pulls against.  So there are two forces that we are able to find.  That would be the mass of his body pushing down and the force of the ground pushing up.  This causes the body to stay up right and not fall over.  Now, because he is decelerating, he is accelerating in the opposite direction, or backwards.  So when drawing the diagram we will have an arrow pointing down labeled "mg" and an arrow pointing up labeled "N" for normal.  Both of which are the same length.  Also there will be an arrow pointing opposite the runner's direction.  So if we was running to the left, the arrow would be pointing to the right.  And vise versa.  Also this arrow should be labeled "F for force".  And that is basically it.  So I hope you have enjoyed yourself.

Blog Post #8

Hello fellow bloggers.  I am back with a new segment of my blog.  Today's focus is on force.  So, this video is of my baby cousin pushing his baby walker.  The definition of force is simply a push or a pull.  More specifically we are going to focus on contact forces today.  Contact forces are caused by contact of contrasting 2 objects.  Basically this means that the baby walker is one object and my baby cousin is the second.  When my cousin pushes against the walker, it causes a contrasting force, making the walker move.  And that is what a contact force is.  There is another force that I didn't cover.  This is called "at a distance force", which is forces that are not touching.  This could be like an object falling.  There is nothing pushing it, however, gravity is acting upon it, making it move.  But I won't get too much into detail about that.  So thats it for this week. I hope you learned something and that you had an idea of what a contact force is.

Extra Credit Blog Post #1

Hey so my teacher Mr. BUREKU (ブレク its actually an english name but for privacy purposes I spelt it in Japanese plus it was something that we learned in 2D kinematics) told us that this was an extra credit blog post.  We had to make sure that our parents have seen our blog.  But he wouldn't believe us if we were to get a note from our parents because anyone could forge it.  So I decided to make a video of my mother at home reading my blog, while simultaneously cooking dinner.  And of all the blog posts, she had to read the one that I turned in late.  Go figure.  Anyways, you can watch the video, I think you will laugh at the background noises and the fact that she was unable to keep a straight face when speaking.  So enjoy, and I hope I get extra credit.
P.S. I didn't exactly know if i were to write a hundred words so I did anyways.

Blog Post #7

Hey sorry this is late.  Anyways, today I will talk to you again about vectors.  So this weeks focus was on displacement vectors.  Displacement is basically the distance from the starting point to the endpoint of the distance traveled.  This picture was taken this Saturday at the cross country meet at CORP.  The runners were to run a set course going west for a certain distance, then northwest for a certain distance and end somewhere around the south for a certain distance.  We can use displacement by starting from the starting point and measuring the distance traveled to the endpoint.  So that was basically displacement in  a nutshell.  Hopefully I will remember to make a blog post on Sunday this week.

Blog Post #6

It's me again with another blog post.  So, after about three weeks, we are finally on another unit.  Today I will be showing you all about vectors (or at least what we learned so far).  Vectors are basically the direction and what magnitude something goes.  Magnitude is just how far something goes at a certain direction.  The picture I posted is of my sister holding an arrow that reads vector.  The arrow represents a vector because it points at what direction it travels.  If we were to measure the arrow, we could also measure the magnitude.  For example, if the arrow was about 3 inches and the scale reads 1inch= 4miles we can tell that we went a distance of 12 miles to the left (or west if we were pointing in cardinal directions).  So that is just the basics of vectors.  So I hope you learned something today about both magnitude and vectors.

Blog Post #5

Hey this is me again with another post on kinematics.  This week I'm talking about tossing objects in the air.  This has to do with velocity and acceleration.  My friend (who I shall not name), is tossing a Gatorade bottle in the air, and then caught it. We did a similar exercise with a ball for a lab this past week.  Anyways, when you toss an object in the air, the object would have the same velocity going down, but would go in the negative direction.  So, for example, if he throws the bottle in the air at a velocity 9 m/s, then the bottle will drop at the same velocity, but in the negative direction.  Therefore, the bottle will drop -9 m/s.  One more thing.  If when dealing with velocity, when the object is thrown up and then drops back down, the speed goes fast, slow, stop, slow, then fast.  So when graphed on a distance vs. time graph, it will show up as a parabolic shape.  And when graphed on the velocity vs. time graph, it will show up as a kind of diagonal line going in the negative direction.  This is because when the object is going up, it will go fast, then slow, then stop, so when it stops, it will hit the zero line on the graph.  Then, when the object is dropping, then the object will start to accelerate again but this time the line will go stop, then slow, then fast.  So it basically when in a straight line.  So there you have it, velocity/acceleration in a nutshell.

Blog Post #4

Hey, so today's blog post is still on kinematics.  So for those of you who have not gotten what kinematics is yet, its the study of motion.  Today, I will talk to you about acceleration.  Acceleration is the change of velocity per unit of time.  This means simply that the velocity changes when time increases.  The video I posted is of gravity or ag.  This is basically the acceleration of gravity.  Gravity accelerates at a rate of 9.8 m/(s^2).  The ball is used as a representation of gravity in which the ball accelerates as it bounces.  When it bounces, the gravity weighs down on it till it hits the ground and bounces till it stops.  Therefore, it demonstrates acceleration.

Blog Post #3

Hello again, I'm doing another post on kinematics.  I believe I defined kinematics on my last post but for those who have not seen the last one, it is the study of motion.  This time, I want to talk to you about velocity.  Velocity is basically how fast and which direction you are going.  As you can see, the person in the picture is demonstrating velocity at a cross country meet.  See cross country meets are basically a set course with which you run at a certain rate, at a set direction.  When you change direction, you change velocity.  So, in conclusion, he did indeed demonstrate velocity.

Blog Post #2

Hey, so I'm doing another blog post, this time on kinematics.  Kinematics is defined in a nutshell, the study of motion.  It basically talks about speed and velocity, to distance and displacement.  The picture I took outside in the Costco's parking lot, is of cars in motion, averaging the parking lot speed of about 15 mi/h.  They are using a term known as displacement which is the amount of distance covered from the starting point.  They actually traveled, from their house, a total of 0 miles.  This is because the starting point was from their house, they went to Costco's, then ended up back at their house.  Now, if we were measuring distance, the amount of miles traveled would be added and totaled up.  Of course, the distance traveled depends on their starting point, which was home.  So, to summarize, distance is the total amount of miles traveled, and displacement is the distance traveled from the starting point.

Blog Post #2

I know that this doesn't look well and the idea is kind of out-dated.  But this is my idea of a relationship.  If you think about it, ice and water are like boyfriend and girlfriend.  They will either bring the relationship up by freezing or bring it down by melting.  I realized that when an ice cube melts, it's in a relationship with the exothermic energy surrounding the water.  Causing it to freeze.  It was something I learned in chemistry.  And when the ice melts, its in a close relationship with endothermic energy, which is basically energy going in.  Energy in this case is heat.  Which makes sense because the ice is melting; there is a great amount of energy going through it.  But the concept of relationships is about working together to make single unit.  This is probably why people get into "relationships", because if the two variables are closely similar, it will make the bond, or relationship, much better.

Blog Post #1

Hello, this is Austin Chun.  This is my first attempt at a blog post and am very excited.  Some information about myself is, well, interesting in one word.  I love to run and swim, mainly for cross country and track and field.  I also have a part-time job at Leahi Swim School (LSS) as a swim instructor and a lifeguard.  This is a challenging job because not only are you responsible for guarding lives, but you are also working with children and sometimes infants.  But, it is also enjoyable to see their faces light up like the sun and to watch them grow as swimmers and as people.  Of course I am no Michael Phelps (olympic swimmer) or anything like that, but I have been swimming since I was eight and have gotten pretty well at it.  I also love to draw.  I draw mostly anime (Japanese cartooning) but sometimes I like to explore and draw realistic drawings (people mostly).  This is very fun as I get to show what I am thinking and apply it to a canvas.  But, of course, no artist is ever perfect and if I were to rate myself, I would still be at an amateur status.  On the other hand, I have been improving in my works and now I am confident enough to show it to my friends and family. 

Currently I have taken Earth science, which was the study of rocks and minerals, Biology, which was the study of our environment and the study of activity among nature, Chemistry, which was the study of how things work and I am now enrolled in physics, which deals with life and why things happen.  Science is currently the most challenging subject.  I am telling the truth.  I believe that everyone at some point will literally hate science.  But, in that way alone is the reason why I love it so much.  It is like when you complete a 1,000 piece jigsaw puzzle and you have that great sense of pride knowing that you completed it.  That is the feeling I get when I do science.  Knowing that if I work hard, I am able to pass and maybe excel in it.  If I had to say which science course I did not like the most, it had to be Biology.  Not saying its not important, which it is, but it was one of those classes where if wouldn't click.  No piece of information every got stuck in my head.  My best course so far is Chemistry.  I don't know why, but it was fun just to be in that class.  And of course, I had one of the hardest teachers (technically there were only two, but he was still pretty tough), and most people would call him crazy or psychotic, but he made things fun.  I also loved the labs.  The best labs were when we were given some special material and had to measure it then convert it into a certain quantity.  For example, maybe we were given water and we were to change it to gas.  This year, I am looking forward to Physics.  And I am not just saying that just to get on the teachers good side, but I truly mean it.  Physics is the one class where I want to excel at because I want to become either an engineer or an architect and this class would really help.  

The math course that I'm in is college algebra/trigonometry.  Truthfully, the work is really easy and I should have been placed in a higher class, but of course I got a B on my report card and they bumped me down a level.  But, its okay, if there is one thing I learned is never take anything for granted.  This means that say I dropped out of college algebra/trigonometry and I went up to precalculus, it might be harder than what I anticipated and it would already be too late and I won't be able to drop the class.  But anyways, I feel my math level is pretty strong, meaning if you give me a problem I will most likely be able to answer it.  The great news is I am going to continue math for all four years of high school, so I will actually move up to precalculus anyways.

Something I hope to obtain in this course, is a better understanding of mass and gravity.  Yes, I know that the basic definition of gravity is what goes up, must go down, but I want to know why it exists and what causes it to interact with objects in motion.  It probably sound like a stupid subject to learn, but for me, I find that if you know just the basics, it will help with the tougher problems.  For example, I once watched this movie, "Akilah and the Bee", which was about a girl who tries to make it all the way to the national spelling bee, anyways, her coach told her that big words are just little words put together.  This could be related to basically anything, from math to electrical wiring.  Everything is tied together by an ultimately bigger force.  Anyways, that is just a theory.  I really am not expecting this class to be easy, obviously, it is Physics, but I do think it will be a great year for me to learn about how life works.

This picture abstractly represents me.  It shows of a fiddler playing in the back of an alley.  This represents me by showing that I may be by myself but I am never alone.  The music basically represents the entertainment I bring to others, even if I am by myself.  You can tell that I may sometimes be alone in my mind, yet I will make do of what I've got.