Final Blog Post Quarter 2

This past semister I have learned a lot in physics.  Starting from the first quarter we learned about velocity and acceleration.  I think that I had the easiest time on this subject.  We also learned how gravity affected the way things fall.  We also learned the two formulas that you can use to find distance velocity or the time.  The equations were d-1/2at^2+Vot and V=Vo+at.  We also learned how to make sense of velocity time graphs and acceleration time graphs.  We then moved on to vectors and the "breku" technique.  We also leaned SOH-CAH-TOA to solve the vector problems.  Now moving to the second quarter we started with the expo pen lab.  We then learned how momentum and other forces played on objects.  After we then learned how to draw diagrams that described all of the forces that act upon an object.  The next unit we moved on to learning what Newtons were.  We also learned about Newton's laws and why how momentum is always conserved.  Close to the end of the quarter we did the egg drop.  This was a lab to see how well we understood all of the Physics that we had learned during the second quarter.  Luckly my partner and I's egg had survived.  Now we are learning about energy's which is very similar to our unit of momentum.

blogpost Quarter 2 #8

This week in physics we are learning about work and energy.  The major concept that I had to grasp was that energy is always conserved.  No matter what the case PE will always equal KE or PEs.  This has helped me with my take home quiz because you need to know this concept in order to solve the problems.  We also are learning about the springs and the spring constant.  Although since we don't live in a perfect world energy is not always conserved.  Since there is air friction an object's energy isn't always conserved.

Quarter 2 Blogpost #7

I was relieved when our egg survived for what seemed to be a forever drop.  When making this device Joe and I were planning for no wind and for our cone to crumple and increase the time of impact.  Instead it landed on the circular top which absorbed most of the momentum.  Inside we cushened the egg with packing foam just to increase the impact time for when the egg would hit the side of the container that it was in.  The only one flaw that our design had was if the wind blew the device so that the circular top landed first.  If that did happen our egg would break because the impact time would be much shorter.

Quarter 2 Blog Spot #6

This week I really hope that my groups egg will survive the three story drop.  I was planning on using cornstarch and water in a plastic bag as some sort of crushing for the egg to lang on.  This lab plays along great with what we are learning because if we can find a way to increase the contact time of our object hitting the ground less force will be put on our object.  I think that also need to study the 3 dimensional explosions that we had on the P.A.  Over all I think that this week was a major one because we are learning a lot of important major concepts.

Quarter 2 Blogpost #5

Now that we are on the unit of momentum I am able to understand why things keep moving at the velocities that they travel.  This past lab also helped my understand visually on how momentum is neither created nor destroyed.  The lab also helped my see how and in what direction momentum was transferred when two carts collided.  I was also able to see how objects with different masses affect the amount of momentum an object has.  Over all this week I was able to understand some key concepts that will hopefully help me on this upcoming unit exam.

Quarter 2 Blogpost 4

Momentum
To me momentum is the physics of why things move the way they do.  I think that inertia has a big role in an objects momentum.  There must be a direct relationship between the two.  The more inertia an object has the greater its momentum will be.  This sounds a little confusing at first because we had just learned that when two objects collide no matter what the mass they both put the same amount of force on each other.  I looked up the formula for momentum and this is what I found: p=m*v (p= momentum, m=mass, and v= velocity).

Example of something with momentum: A baseball being thrown (Tyler Meditz)

2nd Quarter Blog Post #3

This week we are still on the same subject of finding out the newtons of different problems.  We are also learning about how tension works and how all of the different axis operate independently.  I learn better when Mr. Blake makes the learning fun by making up inovative terms such as "da whole ting."  I am still having trouble on learning how all of the axises work independently and where to plug all of the variable in to the equation.  

Blog Post #2 for quarter 2

This week while learning about Newtons I found it hard to solve the three vector problems.  On the previous PA I was able to grasp the concept of Fnet=ma.  Over the course of the week I understand a lot more about why things move the way they do.  Newtons laws of physics are true, even for humans most of the time.  Along with the labs I find it easy to grasp all of the key concepts that Mr. Blake is trying to teach.  I am glad that there is only one set of equations so far because it limits my chances of error on the upcoming exam.

Blog Post #1 (2nd Quarter)

With the start of a new quarter we now are learning about force and why things work the way they do.  We also are learning the Newtons laws and theries.  The labs that we are about to do seems interesting because it contradicts Newtons law that states "objects at rest will tend to stay at rest unless acted upon by an outside force." Since we saw you move the paper but yet the pen stayed in the same place that it was, only now that the pen is on the desk.  I asume that the paper is moving faster than friction is able to hold the pen in place.

Blogspot 8

With the wrapping up of the vector unit i can say that I get how to do all of the problems.  I really studied for this unit and it payed off because I was able to do the quiz almost all on my own.  This unit was a lot easier than the vectors because there was less equations that you needed to know.  Since I learned SOH-CAH-TOA last year I was already familiar with the equations.  Another thing that helped my learn was teaching us in a new more fun manner.  The "bureku" technique helped me remember that all vector can be broken up into many vectors.  I also remembered that you "hate" diagonals and to always make then straight.

Blogspot 7

Now that we are learning about vectors it seems very complicated on how we can split vectors but still keep them the same.  I enjoy learning the subject in a fun manner such as the "bureku" technique, it helps me remember the material better.  Freitas makes the class very fun because of his singing and dramatic effects that he makes while singing us his song.  All of the lyrics to the song also make sense and help us learn SOH-CAH-TOA in a fun and new way.  The PA #3 was pretty easy and I was able to understand all of the concepts that we are learning at this point.

Blogpost #3 (everything moves up a number)

We were learning about Kenimatics.  We are learning all of the equations for gravity such as: d=1/2at2)+Vot, V=Vo+at, and V(2)=Vo(2)+2ad.  I don't get why the formulas work but I know how to plug in all of the different variables to find the answer to the problem.  I always wondered how people were able to find out the acceleration for earth.  For people to test that how did they factor in all of the different variables that would affect the path of an object when dropped?  To find out how scientist found the acceleration of earth would be interesting to find out.  Since this is late I hope that I will be able to fully understand the next unit and how to plug in all of the information needed in the next chapter.

Blogpost 5

This past week we learned how to make sense of a velocity, acceleration, and position graph.  Now I get why the graphs look as they do, for instance the velocity I can tell where the ball stops and suddenly falls back down.  I also learned what an acceleration vs. time graph looks like and I can tell the where the ball slows in its acceleration and then begins to accelerate back to the ground.  Right before the ball was stopped there was a big bump in the graph and that was when your hand made the ball accelerate in the opposite direction.  You can see things going up and down and you never think what, why, or how it comes back down to earth.  

Blogspot #4 Kinimatics in the Realworld

With the finish of the Kinimatics it helped me understand why and how objects travel with acceleration and gravity.  Although we did not cover air resistance I was able to understand why we use all of the different formulas.  Although the final test for the unit was very hard I feel that I understood the chapter quite well.  Overall I hoped that I did get a good grade on the exam although it is highly unlikely.  For the upcoming unit I plan to study all of the equations and learn where to “plug and chug” and how to find all of the variables.  

blogspot #2

This week in Physics while learning Kinematics I learned that gravity has the velocity of 9.8 meters per second squared.  All of the P.A's were real world questions that can be asked and figured out.  Although I wonder what effect wind and air resistance will have on the objects that are being thrown up.  I also though that there might be wind resistance to the object if it has a large flat surface that might act like a parachute.  For example if you drop an umbrella open it will most likely fall faster than if you dropped the same umbrella closed.

Physics And The Use In The Real World

The physics that my picture represents if the distance the a baseball will travel depending on the angle that its contacted at and the force of the bat and ball.  The more force that the bat has the farther the ball will travel.  The same goes for the force of the ball.  The faster the ball travels the father it will travel.  The picture relates to the unit that we are on because we were just measuring the amount of time that it would take for a pendulum to make five full rotations.  There were three different factors that we measured and we could create the same different experiments for baseball.  

Blogspot #1

I am Jason Murakami and I am a sophomore that is 16 years old.  I have attended Kamehameha all of my life.  I enjoy going to the beach and that is the reason that I choose the picture of a wave at Sandys.  Over the summer I spent most of my time going to the beach, either Sandys or Makapuu.  I also play baseball during the summer and spring.  So far at Kamehameha I have taken biology, Chemistry and currently enrolled in Physics.  I also hope to obtain my high school diploma because it is a required to take three courses of science to graduate.  While in biology I was taught by Ms. Tully and Mr. Kim in Chemistry.  I am currently in algebra 2.  With the completion of this course I plan I obtain a greater understanding of Physics and why we need to learn the subject.