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OksanaZ

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About OksanaZ

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  1. OksanaZ

    Physics in Music

    We all listen to music daily and share a large appreciation for it however we don't necessarily stop to think about how music travels in sound waves or how they work. We all know that waves transfer energy but sound waves are considered mechanical waves because they require a medium in which they travel through which could be any substance or material that carries the wave along from one location to another and in this case, air would be the medium for sound waves. They travel through the air and our ears pick up the energy from these waves which vibrates against our eardrum and is converted to a nerve impulse which sends that signal to our brain. Sound waves are also considered longitudinal because the wave compression move left or right and the vibrating air particles as well move parallel to the direction the sound wave is travelling. Most of us listen to our music extremely loudly with our headphones blaring, and that means that the sound waves travelling have a high amplitude while when we listen to music as we're trying to fall asleep, its at a much lower volume to form a tranquil setting and those waves have a low amplitude, producing sound at a quieter volume. Also when listening to songs we notice that some singers have higher pitched tones than others and some lower. Having a high pitch indicates a higher frequency of a wave and those singing with a lower pitch indicate a lower frequency of a sound wave.
  2. OksanaZ

    Physics in Music

    We all listen to music daily and share a large appreciation for it however we don't necessarily stop to think about how music travels in sound waves or how they work. We all know that waves transfer energy but sound waves are considered mechanical waves because they require a medium in which they travel through which could be any substance or material that carries the wave along from one location to another and in this case, air would be the medium for sound waves. They travel through the air and our ears pick up the energy from these waves which vibrates against our eardrum and is converted to a nerve impulse which sends that signal to our brain. Sound waves are also considered longitudinal because the wave compression move left or right and the vibrating air particles as well move parallel to the direction the sound wave is travelling. Most of us listen to our music extremely loudly with our headphones blaring, and that means that the sound waves travelling have a high amplitude while when we listen to music as we're trying to fall asleep, its at a much lower volume to form a tranquil setting and those waves have a low amplitude, producing sound at a quieter volume. Also when listening to songs we notice that some singers have higher pitched tones than others and some lower. Having a high pitch indicates a higher frequency of a wave and those singing with a lower pitch indicate a lower frequency of a sound wave.
  3. OksanaZ

    Physics of kickball

    Everything we do in life involves physics in one way or another and sports illustrate physics in many ways, especially in a game of kickball. To begin with, you have a person pitching the ball which they use the force of their arm to pitch the ball at a steady, constant pace. Depending on how much force the pitcher used, the ball either rolls all the way to the kicker's foot or it slows down and comes to a rest. This represents Newton's first law of motion because the ball keeps rolling until its acted upon by an outside force. Then the kicker responds by kicking the ball into the air which travels in a parabolic form and eventually comes down due to the force of gravity pulling it back down to earth. When kicked, the ball travels up at an angle, remains in the air for a split second where the velocity is zero meters per second and then comes back down. Also depending on the amount of force behind the kick, it determines the distance the ball will travel.
  4. OksanaZ

    Physics of driving a car

    When operating a vehicle, physics is involved in numerous ways. For instance when a car is parked and at rest it represents having an initial velocity of zero meters per second. Also, you have the forces of gravity and normal forces acting upon the car to keep it from moving on earth's surface. Since the vehicle is at rest, it also contains potential energy because its energy is stored and currently not at use. As soon as the car starts moving, you now have kinetic energy which represents the energy of motion and movement. The car is also accelerating and gaining speed, initially increasing its velocity as well. The first law of motion therefore affects us because while we are in a car, no matter how fast the car is going, we are also going that fast and we continue to go that fast until acted upon by an outside force. Therefore if while driving you crash your car, your body will resist the change in motion and unless something else stops it first, your body will crash as well. The invention of seat belts helps protect people from this danger/future accidents. Seat belts provide an outside force that slows down/or stops your body by decreasing the force of impact that could injury/kill you.
  5. OksanaZ

    Physics of running

    While running on a treadmill one day I noticed that a lot of physics actually took place while running. When one engages in running, you use kinetic energy because your body is now in movement and using energy. When you first begin to jog or start running, your initial velocity is zero meters per second because your body is still at rest and hasn't fully begun to move yet. As you begin to engage in the activity, you begin to jog at a light constant pace which means you maintain a constant velocity. After awhile you might accelerate and gain speed, causing your velocity to increase steadily as well as your distance because your covering more ground. If you wanted to calculate your time while running, you could do so due to the information you know and by using a formula such as v=at. Another important thing to consider is posture and bending your arms and legs while running. Everyone runs with bent knees and arms at about 90 degree angles because its more efficient and makes the individual run faster compared to running with your knees locked and arms stretched out, swinging by your side but not being bent.
  6. OksanaZ

    Determining g Lab Deliverable

    THE ANTONIO JAMES MCINTYRE III adam kirchgessner hannah halloran oksana zubrzycka The young physicists at Irondequoit have calcultated the acceleration due to gravity, the first step the students took were meausring the distance from the top of the ceiling to the floor which had a distance of 2.74 meters, they then used a Voit ball and dropped it to the floor and calculated the time that it took to hit the ground. THe average time was.71 seconds and since the distance was 2.74 m the group used the kinematic equation d=vi(t)+1/2at^2 which they then derived to 2d/t^2=a to get the acceleration. If the numbers the group collected are correct or close to being consistant the acceleration should of been 9.81m/s2 but this came to be untrue. The number the students should have got was 9.81m/s2 which is the gravitional pull to the center of the earth, the numbers the students got were 14.24m/s2, 7.76m/s2, 6.07m/s2 and 10.28m/s2. The percent error of the group was extremly high to start where it was 45% but then went downn to 20.89% to 38.12% and all the way down to 4.79%. This lab showed how poorly the timer of the group timed. The percent error was so high was because of the possible unaccurate measurements from the ceiling to the ground as well as the possible inaccurate timing, any change in these numbers can totally change the gravitational pull and proved to be true.
  7. OksanaZ

    V vs. T Graph Lab

    Oksana, Hannah, Miranda and Chanae
  8. OksanaZ

    V vs. T Graph Lab

    The appearance of a velocity vs. time graph for an object moving with uniform acceleration is a straight line at a constant slope. The slope of a velocity vs. time graph represents the acceleration of the 200g and 500g objects. The acceleration of an object in free fall is 9.81 cm/s squared. Yes because the heavier the object, the greater the acceleration will be and the less heavier object has a lower acceleration rate. Two sources of error throughout our lab could have been the measurements of the displacement of each interval of each object and also could have been calculating the percent error because the percent error was way over 100 resulting in an inaccurate percent error.
  9. OksanaZ

    The physics of dance

    When analyzing dance and the specific movements of dance, you realize that a lot of physics are actually involved in this activity. For instance, when looking at a dancer, you realize they maintain very good balance because its essential in being a good dancer. Having balance means that a dancer's center of gravity must remain directly above the area of contact with the floor because it will ensure positive vertical posture and balance that will keep you from tipping and falling over. Maintaining balance on flat foot is simple and easy, however it gets more difficult when there is less and less contact between your foot and the floor. For instance when dancing en pointe or up on your toes, balance becomes more difficult to reach. Also spinning in dance is affected by your rotation speed and resistance. When spinning with arms and legs freely open and swinging, your speed rotation decreases and resistance increases because your body is in a more open position. When spinning with arms and legs pulled in tight against the body, you'll notice that the speed of your rotation is much quicker and the resistance decreases because your body is in a closed position allowing you to turn more quickly and efficiently.
  10. OksanaZ

    All about me

    Im looking forward to the catapults too! they sound really fun
  11. OksanaZ

    My story so far...

    I hope the projects are fun tooo!
  12. OksanaZ

    Intro Assigment

    Heyy, my name is Oksana and it's my senior year of high school already. In school my favorite subjects are math because I like to be challenged at problem solving and English for the reading. Outside of school, I like to hang out with my friends, read, go running or on a walk, and dance. I decided to take physics this year because I've been thinking about becoming an optometrist as a possible career choice and I found out that we will be learning about optics which sounds exciting to me. Hopefully by taking this course I learn more about what I want to do in the future and see if this career would really interest me and suit me.

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