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# heather_heupel's Blog

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## Physics of MRI

Ever since I had an MRI on my knee (worst experience ever) I wanted to discover what was really going on. Sitting still for 32 minutes really makes you start to think about everything. I wondered what the machine was really doing. I had to take off all of my jewelry, or clothes that may have metal on them and until 9 minutes into it did I realize I left my ring on. I only noticed because it was vibrating and made my hand feel weird. I pulled the emergency cord and told them what was wrong and th

## Wave CharactCharacteristics Video Notes

https://mail.google.com/mail/u/0/?ui=2&ik=d929e88657&view=fimg&th=14c75c553683b948&attid=0.0&disp=inline&safe=1&attbid=ANGjdJ8-KCD7xiFXN3nD3VBKhRvuaJYFOzEPfRP3C_vOJheOoJ-SxXAMyMXyNdzUGiCwpv7FcyhCG67XI2HEKZrGkH47iqBST1yLh1WyAecHG9o3iBJPerq9dOM-h7A&ats=1427905191948&rm=14c75c553683b948&zw&sz=w1000-h379

## Music

Because were making iPod speakers in class, I decided to figure out the physics of music. First off, frequency is the amount of vibrations per second. Vibrations create sound. A through G are letters that are assigned to exact frequencies. For example, the note C has a wave length of 1.301. The reason there is no "H" note is because when frequencies double they sound similar due to the wave structure. When the notes repeat its called an octave. The black keys on the piano are notes that musician

## Rollercoasters

Roller coasters is another one of my physics interests. A big question is why don't people fall out when the roller coaster goes upside down. Energy, inertia and gravity all have to do with this. Newtons first law says that an object in motion will stay in motion unless acted upon by a net force. The coaster is going too fast for a body to just fall out. The first big hill on most roller coasters is what runs the rest of it. The cart is pulled up to the top of the hill and then gravity takes ove

## Physics of car accidents

I remember Mr. Fullerton saying a while ago said that using physics, investigators could figure out what went on in a car accident. I became curious as to how they did this. I found this youtube video that taught me a lot about it. The first part is inertia, and that the human body is going the same speed as the car, but when the car quickly stops, the body wants to continue at that speed. The steering wheel or wind shield will apply a force on the body to stop it. Also, extending the time of d

## Experiments

http://youtu.be/Mskc0KYIR1E Before taking physics, I wasn't really sure what the class was even about. Halfway through the year I have come to the conclusion that there is no real classification. A school year seems far to little to go over all of it, it seems as if it could go on forever, because physics is everything. The one thing I am surprised about the class the most is that we don't do many experiments other than on our own in labs. This video interested me because I would want to try

## Experiments

http://youtu.be/Mskc0KYIR1E Before taking physics, I wasn't really sure what the class was even about. Halfway through the year I have come to the conclusion that there is no real classification. A school year seems far to little to go over all of it, it seems as if it could go on forever, because physics is everything. The one thing I am surprised about the class the most is that we don't do many experiments other than on our own in labs. This video interested me because I would want to try

## Work Video notes/drawings

Part 1; https://mail.google.com/mail/u/0/?ui=2&ik=d929e88657&view=fimg&th=14b086be23780845&attid=0.0&disp=inline&safe=1&attbid=ANGjdJ8mZU1dLF08yBjG9yAkS06QLs_jh8aXVwI--Y9I_7h2MAWvcAxXbiTFOJMkp0CBMXYtJHfcUbYq6LQYliAK1Ds4MCzbhhibQBYCghCpOMyOqwjimG_WZDGWpuY&ats=1421775518359&rm=14b086be23780845&zw&sz=w1000-h379 Part 2; https://mail.google.com/mail/u/0/?ui=2&ik=d929e88657&view=fimg&th=14b086ba51a1ae62&attid=0.0&disp=inline&safe=1

## Physics of Skiing

Last night while skiing, I started to think about the physics behind it all. Since my surgery last year, I am very cautious about the velocity I go down the hill. Whenever someone comes close to me or speeding past me, it is very nerve wracking. Because I am smaller than most other skiers, if we collided, I would most likely experience the bigger change in velocity and impulse (J). During my accident last year, I was barely moving about to stop, going a velocity of probably .5 m/s when I wa

## The Physics of Driving

Newtons first law states that an object in motion stays in motion, and an object at rest stays at rest unless acted upon by a net force. So if you are driving at 100 miles per hour and hit a car, coming to a quick stop, your body will still want to continue at 100 miles per hour. Why doesn't it? Because the net force, your seat belt, is holding you back. Airbags also help to keep you out of danger. When cars were first designed, they had to think about the physics. The windshield would also stop

## Field hockey

In years past when I used to play field hockey, friction and forces were a big part of the game. First of all, some games would be on grass and others on turf. These were two completely different types of games due to the amount of friction the ball and the ground had. On turf, the ball moved much faster due to the fact that the surface is smoother. The ball continues to travel for a longer amount of time on the turf than the grass because the grass has lots of divits and bumps and holes. These

## Physics is everything

After school everyday I find my parents asking me "what'd you learn today?" For the past 5 years I've always been saying nothing. Although we do learn a lot everyday in school, I've never thought that any of it will help me in the real world therefore it seemed like unimportant information when outside the classroom. Throughout the first two months of school, I feel like I've learned a ton in physics class alone. I think that everything we've learned can actually apply to things outside the clas

## Catapult Project

This is mine and Michalla's catapult. We are excited to launch tomorrow although it does not throw a very far distance. Prior to building it, we did not do any calculations. We built it by eye and what we thought would launch the best. Even though it is not amazing, we are proud of how it came out because at first we never thought us two could build one. If we were to do the project again, we would keep in mine that if it was angled at 45 degrees, it would travel the farthest. Also, if

## Ti selfie contest

:-)

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