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Physics in Catching
There are tons of physics in catching a pass, rather that pass being from the real sports football basketball or maybe a sport like baseball. A lot of the physics actually comes from the pass. For example tracking where the trajectory of the ball is being place along with the force that was put on the ball in order to make it move sense we know if a force wasn’t put on it then it would never be moving in the first place. The acceleration of the ball basically right when it reaches your hand must reach 0m/s2 or the force of the ball will end up having you not showcase your ability to catch the ball. Typically when you are about to catch something you bend your hands in a glove like shape, this is because the greater the area of a place for the ball to land the less the force of the pass.
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universal Gravitation
We all know that gravity is the reason for things falling but nobody really knows why. We do know how to find and calculate gravity which helps us understand it better. Newtons law of universal gravitation helps to understand a little more of how gravity works. It states that any two things with mass have a gravitational force between them. The more mass and the closer they are means the more gravity they have. So all of us are pulling on everything with mass all the time but our masses are so small compared to the mass of the earth that it does not have an effect. The Law of Universal Gravitation does not just apply to objects on earth but the entire universe thats why its called universal. Using this law we can discover the gravitational force on any planet that we know the mass of before we even go there.
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How I Broke My Pinky
Everyone knows the blue, padded gym walls. If someone was to offer you 10 dollars to punch one as hard as you could, there are at least 5 of you out there who would take it. Well, had i known the physics of a punch, I wouldn't have ended up with a broken pinky. If you're going to punch a blue wall in the gym, keep this in mind. The longer the punch connects with the wall, the smaller the force was. This makes sense logically,, if i hit something hard my hand will bounce back from the collision. If I just Touch it, the collision is a lot less forceful and far less damaging.
Airbags rely on this fact as well. Newton's first law accounts for inertia, and in a car accident, inertia might throw you through a windshield. Airbags deploy and you fall into them, keeping contact for much longer than you would have if you smashed into the steering wheel. This weakens the blow, and therefore the damage that the force will have
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The Physics of Driving
Physics is involved in our everyday lives, whether we like it or not. One of the things that we do on a daily basis is drive- there's lots of physics in driving! Ever think about why the gas/break petals push back up after you step on them? That's because when you push on the breaks, the break petal pushes back onto you. To get more in depth, Newton's 3rd law applies to driving because when you drive, the action force is pushing against the road and the reaction of the road is pushing against the tires. Also when a car hits a person (let's hope this doesn't happen), the person hits the car. To sum this all up, when you put energy and force into an object, energy and force comes back to you.
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Singing bowls
Tibetan singing bowls are similar to humming crystal glasses. A mallet is used to vibrate the metal bowl by sliding along the edge in a circular motion. This creates a standing wave. The bowl acts as a resonating chamber, each edges' wave reflects off of the opposite side; which gives it it's unique sound. If the person controlling the vibrations does it gently enough and at the correct speed, the frequency remains constant while the amplitude will most likely increase. An increase in the speed of these pulses can create an increase in frequency and vise-versa. A difference in the medium, such as having a different size or kind of metal, can also affect the pitch of its hum. This is how Tibetan singing bowls work.
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Latest Entry
iss
watch the ISS cross the sky. Get emails for when, where and for how long! Go to: http://spotthestation.nasa.gov/
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Latest Entry
Reflection on Physics Class (third quarter)
Physics class is so interesting and attention grabbing to me. I enjoy physics class but only when I can totally understand what we're doing and what's going on. Right now we're working on circuits and electricity which I find really easy and fun. I like putting together circuits and seeing if they work or not. I like series circuits more than parallel circuits because it's easier to fill out the V IRP table than it is to fill out the table for a parallel circuit. Physics has been going fairly OK for me so far during the third quarter. I really tremendously appreciate the fact that Mr.Fullerton let us students make up the videos we'd missed over these past couple of weeks because I was behind on them but I'm all caught up now. I plan on doing really well on our next "celebration of learning" this week so that my grade can go up even higher. I plan on seeking extra help as well so that I can do my total best on each and every exam we have from now on, including the final exam
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Latest Entry
Current Electricity and VIRP Tables
In honors physics, we are working on the current electricity chapter and have started VIRP tables. At first the tables seemed complicated and confusing, but after much practice they have become fun math puzzles.
This link was very helpful to understanding VIRP tables. It was clear and straightforward:
http://www.physicsclassroom.com/class/circuits/Lesson-4/Combination-Circuits
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Latest Entry
The Physics of Skyfall
moon77 on 3 16 14 referenced a video on how James Bond defies the laws of physics. This was a very interesting post and made me think about movies in a way that I never had before. It truly reinforces the assertion that physics is in everything. I loved how the user broke down his calculations to show his readers exactly how James Bond defies the laws of physics.
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Latest Entry
First blog assignment: reference to gymnastics
Sandrae312 on 2-10-14 blogged about the different ways gymnasts use work and power. I thought this was cool because I am a gymnast and I never thought about the components of physics in gymnastics.
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Latest Entry
[Re:] Circuits
On March 13, 2014,physicsgal1mentioned learning about circuits, Ohm's Law, a few formulas she learned and even referrenced a video regarding circuits.Now that I'm understanding circuits and how to do VIP charts I really enjoy doing them. To me, the process has become almost medative-at least once I get going. I found the video helpful as it reminded me that the electrions technically flow from the negative side to the positive. Part of me wishes I had looked for a video, like the one referrenced, earlier in the course of learning. Another part of me is glad I didn't because I got to learn the process(a little)on my own and I feel like I know the concept better now because I did the work/learning myself.Now maybe this is just my personality and desire to keep everything organized and together but I would not have only three equations in that post. Even if I know/knew all the equations, I'd rather put all of the ones for series (and parallel) down just in case Idoend up forgetting them. Plus, doing so "proves" I know what I'm doing and leaves little room for others to doubt me but that's just how I operate.Ohm's LawV=IRSeriesV=ΣV=V1+V2+V3....I=I1=I2=I3...RT=ΣR=R1+R2+R3...ParallelV=V1=V2=V3....I=I1+I2+I3...RT=(R1-1+R2-1+R3-1)-1or RT=(ΣR-1)-1or 1/RT=[(1/R1)+(1/R2)+(1/R3)]-1 -
Latest Entry
Physics in Movies (Skyfall)
On March 1, 2014, user Ben Shelton discussed how physics is used in the James Bond movie Skyfall. Since I have seen this movie and other action movies like it, I found it interesting how heroes such as James Bond defy the laws of physics. Ben Shelton broke down the first scene of Skyfall using the equation vf2 = vi2 + 2ad to prove the inaccuracy of a character's fall. It makes me wonder how physics could be used to analyze other action movies.Here is the link to the original post (warning: it contains spoilers):
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Latest Entry
Circuts
Fezziksphysics discussed VIR charts, referenced physicsgal1's video about circuits and listed the formulas needed to solve Ohm's Law, series, and parallel circuits.
This chapter was difficult at first, but is much easier now that I understand the VIR charts and circuit rules. Once I learned the rules for each type of circuit and learned how to solve mixed circuits, the charts came to me easily. I’m not much of a video person, but I did take the time to watch the video and I found it had a good basic explanation/review of circuits. I tend to learn better through practice problems and note-taking.
One of the most difficult topics was solving mixed circuits. This trick is to remember to combine the parallel circuits into a single resistor, then solve the circuit as a series. Here are the VIR equations:
Parallel:
V1=V2=V3=VT
IT=∑I
RT=(R1-1+R2-1+R3-1)
Series:
VT=∑V
I1=I2=I3=IT
RT=∑R
This website explains circuts pretty well for those people (like me) who learn well through reading:
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Latest Entry
In response to cat density
Shabba Ranks shed light on an area enduring very high cat density. As said in their post, cat density's characteristics resemble that of mass density (how much mass there is spread throughout an amount of space) and charge density (how much charge is spread throughout an amount of space), but it deals with cats. Doesn't it seem like cat videos and physics go hand in hand?
Here is a link to the video:
P.S. I take it that "cat enthusist" is the politically correct term for "crazy cat lady"
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Latest Entry
things I have learned in physics
I have learned many things in physics. In the first few weeks of the class, I felt very confused. As the class went on, I learned that physics is a necessity in life. I've learned things like we never actually touch anything, we just feel it. Also, I know how to find the angle at which a football is thrown into the air. We use physics in our everyday life and need it to understand how everything in the world works. Also one of the things I found most interesting is when we learned about falling cats. Cats can twist their spine while they are falling so that they always land feet first.
http://aplusphysics.com/community/index.php/videos/view-3-flipping-cat-physics-smarter-every-day/
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Latest Entry
Fun in Physics Class
During my first week of physics class i felt completely lost! I wanted to understand physics so badly! I love math; so I was confused as to why I was not understanding physics. We were learning kinematics and I had no idea what was happening. What's velocity? What's acceleration? These were some of the questions I was asking myself. After much practice I finally got the hang of it! Looking back at kinematics it seems so easy! Hopefully with some of the harder material I will feel the same way!
One of my favorite experiments we did in class was watching what happens with an electroscope. An electroscope is a model that demonstrates the movement of electric charge. Check out the video I posted below to learn all about an electroscope!
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Latest Entry
The Physics of Wagon Pulling
The blog "amandarocks27" on 3/8/14 posted about how her baby niece has plenty of toys that she will be able to cart around in a wagon once she's older. "amandarocks27" explained how she would figure out the amount of work her niece would have to exert on the wagon to make it move.
The post shows how physics can be used in real life!
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Latest Entry
It Gets Easier
Physics is simple once you get the hang of it! At first the concepts are confusing, but practice makes perfect and it becomes much easier. By the time the test rolls around it's much easier. When I look back on my tests I wonder why I ever had trouble with the chapters. I am so glad I can say this now!
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Latest Entry
Basics of Physics
When I heard the word "physics" for the first time, I had no clue what it was. I didn't know if it was just another type of science that I would be bored with. But, I slowly learned that physics is everything in the universe. You can literally figure out why things do what they do. From throwing a football all they way to electricity, physics covers it all. Physics is truely life. It practically explains the universe.
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Since I started taking Honors Physics this term, I realized everything we do, involves physics. This seems like an easy enough concept to memorize, but it can be wierd to think about. Bailliexx13, in his/her blog "Physics in studying midterms" on 1/26/14, made me realize that physics is involved when you are even studying. He/she talks about how moving your papers around involve physics. Just think, you are apply physics as you study it! I don't see where we would be without physics. I can't imagine anything, any task, that does not involve physics. In a way, physics controls our lives.
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Latest Entry
Physics is Confusing (at first)
I felt so lost within my few first weeks in my physics class, but after seeing how my teacher actually shows us how to apply physics and all the math we've learned all these years, it comes so easily now! Physics will definitely help me down the road in college and possibly in my career, and I am very happy I am taking this course. It has opened my eyes to another world that I wouldn't have known existed otherwise.
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Latest Entry
Physics Problem Solving
When I found out that physics involved solving many story problems, I was worried because solving story problems have always been difficult for me. In the beginning of the class, I found the story problems difficult but as the class progressed they became much easier. This video by Jesse Mason helped to show simple steps in solving any physics problem.
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Latest Entry
Go physics
I felt the same way "hotdog" did on her first day of physics class... lost and confused.. in need of direction when learning this new language. However, I was excited to learn about the study of matter and energy. When I sat down on my first day of physics, I felt anxious and overwhelmed. SO much to learn in one semester! I'm managing the anxiety by making sure i learn the content, doing all my homework, and studying for tests but it comes back some days! For the most part I'm enjoying the class immensely. I'm a very hands-on, concrete-content person, so physics is enjoyable for me. Earlier, I got really excited because I found this erasable highlighter (who knew they existed), and the reason the highlighter gets erased is because of the friction of the eraser on the paper paper. I just found it fascinating.
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Latest Entry
Physics is in everything
Since grade school I have been taught that math is in everything you do. Since the beginning of this semester of taking physics, I have learned that physics is involved in every single thing. When my class learned kinematics, my thought process of things change. Now when I see an object fall or thrown I think of the math that goes into its free fall or its projectile motion. When I'm driving I also think about my velocity and acceleration in my car. Since learning physics, it has taught me a lot and has also changed my perspective on the world.
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Latest Entry
What am I doing here?
Hello! Well, this is it. the first blog post. What do I write, what do I say to make the reader enjoy this blog? To stay, and want to read more? Well, who am I kidding. There's something going on if their on AP PHYSICS and looking at a blog by the author of hotdog. I don't even blame you if you choose to leave right now. But if you do, you'll miss a great story about how I felt in my very first Physics class!
Actually, there's not much of a story. I walked in, sat down, looked at the board, and felt empty. I'm not sure if empty is the right word, maybe lost. The type of lost where you threw away the map, the guide is on his first single tour, and you're in a foreign country with no idea how to speak the language. Does that bring any image or feelings to mind? As I sat, I realized two things that day: (1) that I would either have to learn some time mangement skills, buckle down, and learn some Physics, or (2), learn how to procrastinate like there is no tomorrow (really, I'm doing yesterday's homework today!)
Which skill do you think I chose as I write this at 1:30 in the morning?
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