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kelsey

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Blog Entries posted by kelsey

  1. kelsey

    Physical Therapy

    By kelsey,

    As I was desperately researching different topics to write about, I came across an article describing how physical therapy relates to physics. As a former physical therapy patient, I know the painful and difficult tasks required to heal. According to the article, Torque, electromagnetic force, and gravitational force are relevant to physical therapy. Also, physics itself is obviously applicable to the movement of the body through all the forces of nature. Torque applies to physical therapy as the body bends, stretches, and moves throughout a persons life. Electromagnetic force is present within processes of the human body and any electromagnetic forces outside the human body may effect it. Lastly, gravitational force becomes relevant to any motion the body makes.
  2. kelsey

    Physics applies to health

    By kelsey,

    I've always been curious to if physics applied to health and the importance of it. So, while researching this I found that physics does apply to health in many different ways. For example, if someone breaks their bones, doctors use x-rays which are a product of physics. Another medical use of physics is when a woman is given an ultrasound, this is a form of physics because you're watching the process of physics in action. Also one of physics other creations, the defibrillator, can be the difference between life or death of a patient suffering from cardiac arrest. Finally, Physics deals heavily to lasers including laser eye surgery. These are just a few developments that physics has contributed to medicine and without it people would become very sick, or dead.
  3. kelsey

    Roller Coasters

    By kelsey,

    Over the summer I worked at Seabreeze Amusement Park and I was a ride operator. My job is to operate rides, keep children safe, and provide fun. As a ride operator I am curious to know how physics can apply to roller coasters. According to a website I researched, physics applies to roller coasters in a variety of ways. For example, neglecting friction and air resistance a roller coaster will experience two types of forces, the force of gravity and the normal force. The normal force is directed in a direction perpendicular to the track and the gravitational force is always directed downwards. In addition, a roller coaster with loops applies to physics. For example, at the bottom of the loop the track pushes upwards upon the car with the normal force. And since the top of the loop is directed downwards and the track is above the car, it pushes downward upon the car. Lastly another section of a roller coaster is dips. Dips and hills applies to physics because they combine the physics of circular motion with the physics of projectiles in order to create a big acceleration.
  4. kelsey

    Physics applied to driving

    By kelsey,

    As a new driver I was very curious to learn how driving can be applied to physics. So, I researched many websites to get knowledge on this subject. According to one website, Newton's third law applies to driving. For people who don't know what Newton's Third Law is, it means that in every interaction there is a pair of forces acting on the two interacting objects. Newton's third law applies to driving because when you drive the action force is pushing against the road and the reaction is the road pushing against the tires. Another example, is that when a person's foot pushes on the gas pedal, the gas pedal pushes the person's foot. More interesting information I wanted to know was why is it so difficult to drive on icy roads? One website states that the reason it is so difficult is because the tire cannot grip the road because their is less friction. So when the car tries to push on the road it cannot because the road is icy. This is the reason why cars slide while driving on ice. I'm very pleased with the knowledge I received and will consider these examples in my life daily while driving.
  5. kelsey

    physics in dance

    By kelsey,

    Hi Everyone,

    Ever since I was three I have been dancing and physics applies to dancing in many ways. For example, in order for dancers to stay balanced during dances, the dancers center of gravity must remain directly above the area of contact with the floor, otherwise the dancer would tip over. Also with the decrease in inertia and the increase in velocity I am able to turn or spin faster. In addition, if I was to do a turn in the air the only force that would be acting on is gravity. These are only a few examples on how physics applies to dancing but it is proven to be very significant.

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