Do Work Son

Work is the measurement of force times the distance an object is being pushed or pulled. The unit for work is a Joule which is also the unit for potential/kinetic energy. Potential energy is energy that is stored while kinetic energy is energy in motion. This weekend I had to play babysitter and watch all of my cousins. In doing so we went to the Kamalani playground. Here is where I got a shot of them doing Physics. So at their highest point on the swing they have full potential energy. Just hanging on the swing directly below they have full kinetic energy and no potential energy. Halfway between these two points their potential and kinetic energy are cut in half. 

Give Thanks

This weekend I got the pleasure to go home to the beautiful island of Kauai to spend my thanksgiving. Everyone knows that after thanksgiving is the famous Black Friday Sales where people become madmen and rush into stores to get deals. I happen to participate in these activities and running late I decided to speed on the road. My lesson learned is that speeding is not a good idea. Not paying attention I had to slam my breaks on my toyota Camry and got into a friendly fender bender with a large toyota tacoma. I am thankful for physics because I would have continued to stay in motion and skidded  until the point where my hood would have got demolished  by the truck. Thankfully there was an outside unbalanced force (the tow hitch) that stopped me from totally destroying my hood.

Watch out.

This week was an insightful week of momentum. Momentum is very similar to  inertia, which is a moving quantity that has direction and magnitude. Momentum can be calculated by multiplying an objects mass (kg) by its velocity (m/s). Boxing can be relative to this because change in momentum is equal to the force times time. So if you punch with a larger forcer it will hit the face faster but if you the force is smaller it will take longer. Despite these opposite ideas they will still have the same momentum.  Isnt that mind boggling?

Let it Fall

We were able to learn about Newton's first law on how an object in motion will stay in motion unless acted upon by an outside unbalanced force and an object at rest will stay at rest or better known as the Law of Inertia. Inertia is an object's capability to stay in the same state of motion. An object's inertia is directly proportional to an object's mass. A great example of this is the waterfall I visited this weekend. The water wants to continually flow and fall. However once it reaches the bottom it can no longer fall. But even after the water falls it wants to continue to move which is why it flows down the river.

Make a Wish

I know Im not the only one who likes to throw coins into the koi fish pond at ala moana. Walking around the mall gets tiring and as I was sitting on the bench of the second floor shops when I see this little boy make a wish and throw his coin into the pond below. Seeing this I thought of projectile motions. If I wanted to find the height at which the second floor from which he was throwing it at of I would need to know the angle in which he throws it and it's velocity. With this information I can plug and chug into a combination of trigonometric, acceleration, and distance equations.

How does this relate to me?

I got to enjoy a luxurious weekend on Big Island and here I still had to think about my science homework. One of things that I relished watching my dad surf and stand up paddling in the river

. Now you're going to wonder about how the hell does this relate to physics. You have to think broader, this involves MOTION. But all motion is relative depending upon the perspective you see it from. In this scenario, I would say I'm a pretty good surfer because RELATIVE to the surfboard I didnt even budge. I was able to stand up the entire time. However relative to the ocean I was constantly moving, not a moment I was still. Just to confuse you I was moving and not moving at the SAME TIME. muahaha!

I dont really go to this many school sport events

Wow waterpolo. A very infamous sport here in Hawaii not quite as large of a crowd compared to football thats for sure. Sports make it very simple to see everyday science, esp. physics.  This week I found 2 dimensional kinematics (ooh, fascinating *insert amazed emoji*). When a ball is thrown (which it is quite a lot in this sport) it is a projectile moving in two directions. The first of which is on the y- axis as you can watch the ball be thrown and caught in a parabolic motion. Then we can see on the x-axis that there is a constant acceleration in which the ball is having due to the fact that gravity is always present.

Touchdown!

In some odd way America's beloved sport gets incorporated into everything we do... even physics! Football isn't as mindless as a sport in such that they just hit each other but the plays that they run deal greatly with vectors. Such vectors can even further relate to math (yay!) such as sine, cosine, and tangent. The distance and direction deals is a major part in getting the ball to the end zone. To determine the distance they can use a simple pythagorean theorem. If the wanted to get down to the nitty gritty they could even find the angle using trigonometric equations

What stuck?

Throughout this quarter we have gone through many different sections and vocabulary. Sometimes not everything sticks, for some it goes in through one ear and out the other ear. As I try to review some of the terms learned this first quarter of Physics we can see what really sticked.

We started this semester learning about measurements. Hawaiians had not very precise ways of measurement. They would use body parts to measure items but I don't think they took into account that everyone size of body parts differ. No two people are alike as they would say. We even focused a little on pendulums. We would measure the period of one pendulum swing. To my surprise, there are many different common day pendulums we see around us, such as a grandfather clock.

Next thing I remember is motion. All motion is relative to something. Motion has to do with confuisng topics such as  displacement, acceleration, and velocity. While also touching on vector quantities and scalar quantities. Scalar is only the magnitude quantity or described with a numerical value along. Vector is dealing with the quantity of magnitude and a direction.

I guess I did remember something from school, who knew?

All about moi (me)

My name is Kulia and I’m from the beautiful garden isle of Kauai. In my free time I like to go to the beach and hang out with my friends. My friends would say that I'm a lazy but funny person. This picture represents me because I’m happy and goofing around at my loving home surrounded by my family (the people I care most about). I am currently in a dreaded College Algebra class. I hope to gain viable math skills from this class because I do plan to continue in some sort of math path in my future career choice.

Accelerateeeeeeeeee

This video somehow relates to physics. To other people it just seems like a dumb little video about a kid fooling around. But its about everything we can’t see in this video. Gravity plays a large role from the start. As he throws the cup up gravity slows down the cup until finally it stops at the top. It goes first fast from his initial velocity of throwing it up than it slows down until it stops at its peak. From here it does the exact opposite. Once it stopped it falls slowly then picks up speed until it finally stops in his hands. Simple physics guys, duh.

Dont Drop Glass

From the Physics Assignment Worksheet #1 there was a a problem that stated that gravity accelerates objects at about 10 meters per second squared. This got me thinking about a lot of different scenarios. How could this unseen force actually increase objects ability to accelerate. I've see many videos where they throw different things with different weights off a building and see which one falls first. But I never imagined the fact that they are getting faster as they drop due to gravity, I always thought it was the weight. It intrigued me so I decided to test it out and I tried dropping a glass cup from different heights. I started off with 1 foot to see if it would crack and worked my way to where i was standing on chair dropping the glass cup. It shocked me to see the cup actually increased its speed as it dropped. As you can see in my video when it is first dropped you can still see the cup. But around halfway it begins to be blurred, in a sense that the speed had picked up and can no longer be a visible object because my camera is not a super genius and cant focus it.

Suite Life

This weekend I got to stay at the fabulous Ala Moana hotel. Coming and going, up and down, the same escalator made me realized that a lot of science can be found behind such a common used transportation. My distance constantly changes as I go in and out of the elevator. Each time I enter and exit I go somewhere different or father. But as for my displacement, it did not change at all (maybe a few inches if you want to be cynical). I leave the elevator but always returned back to this spot even for a few seconds.

Fly Away

 On this three day weekend I got the chance to go home, back to kauai. On the flight there I couldn't help but admire the beautiful view and realized that I am in motion even though I wasn't moving at all. Relative to the plane my motion was none. I was sitting in my seat praying to stay alive on this short thirty minute flight. Even though I wasn't moving in the plane I was covering a vast amount of distance in a short period. This is because relative to Oahu, it was moving farther away from me.

Tick Tock

Grandfather clocks have a pendulum within them that sometimes tend to be really annoying to just here it tick back and forth repetitively. They need a long casing to hold the pendulum swings. It swings to keep track of time. The escapement in the clock controls the movement of the wheel in order to provide precisely timed impulse to keep it swinging (the source of the annoying ticking).  The pendulum swings vary depending on the length of the rod. If you're one of those people who like the clock to be 5 minutes faster you simply lift the rod higher. Moving the rod up reduces the length of the pendulum, which in return reduces the pendulum's period so the clock gains time. (learned from searching pendulum clock in youtube)