Project Description
This project was about finding the physics of a specific part of a sport; the sport we chose was sprinting. The part of sprinting we chose to explain was mid-way sprinting which is after you have already started. To explain the physics of our chosen sport we had to make a video on it. Before making the video we made a storyboard and a script so we knew what to film and what to say. This project took about 4 weeks to complete, and during that time my group worked hard to record videos, do calculations, record voice overs, and complete the editing for the video.
Terms Used for CalculationsMass (m) - The amount of matter in an object and is measured in kilograms. To find the mass of an object, you can use a triple-beam-balance, or you can do a unit conversion between pounds and kilograms. A single kilograms is equal to about 2.2 pounds. This term was used to find the momentum of the person sprinting by finding his mass. His mass was 57.6 kg. Time (s) - This the progress of events, to find it you can use a stopwatch. Time for our calculations was measured in seconds. We measured the time of the person running to find his velocity. Distance (d) - How far something has traveled, this can be found by using tools of measurement, such as meter sticks. Distance is typically measured in meters. We found the distance the person ran using a meter stick, we measured him for one meter. Velocity (v) - The rate of covered distance in a direction. To find this you use the equation d/t, d stands for distance, and t stands for time.It’s unit is m/s, m for meters, and s for seconds. We found the velocity of the person’s horizontal and vertical velocity using this equation. The horizontal velocity was 4.7 m/s, and the vertical was 0.83 m/s. Total Velocity (v total) - The total velocity is the diagonal of the horizontal and vertical velocity. To find it you create a triangle by connecting the horizontal and vertical with a 90 degree angle and finding the diagonal using the pythagorean theorem. The unit for this is the same are any regular velocity which is m/s. We used this to find the person’s projectile motion, which was 4.77 m/s. Force (F) - The push or pull on an object, this is measured in Newtons (N). The equation to find force is usually F=ma, however in this project we used the equation ma=Ft, m for mass, v for velocity, F for force, and t for time. This will be explained further down in more detail. We found the force used onto the ground when sprinting using the second equation. The force we found is about 384.8 N. |
This is Our VideoMomentum (P) - The tendency on a moving object to keep it moving. This is found with the equation P = mv, m for mass and v for velocity. The unit for momentum is kgm/s and it is also equal to impulse. We found the momentum of the person running by multiplying the mass of the person, 57.6 kg, and the velocity which was about 0.83 m/s. This gave him a momentum of about 48.1 kgm/s.
Impulse (J) - How long and how forcefully something is pushed. It can be found with the equation J = Ft, F for force, and t for time. Impulse is equal to momentum, meaning we can say the equations are equal to each other. In other words mv = Ft, using this equation we found the force by plugging in the numbers we already knew and solving for force. We found that the force was about 384.8 N. |
Reflection
During this project I learned how to use Windows Movie Maker and how to edit videos better. I was able to improve my collaborative skills as an individual and multitasking as a group. However I can still work on my focus and leadership skills. Since I had never really done editing to a video or used Window Movie Maker, it was a good learning experience. It was much more fun than expected, and I was able to see how to make the video flow more smoothly and play around with the different editing tools Windows Movie Maker provided. During this project I felt that I was able to work more with my group which helped make the project go more smoothly. Like how I was able to take part in helping with the editing with my group. I also felt that this time, I was able to help the group itself multitask more, as in different team members were doing different jobs. An example of that was when someone was doing a voice over, another person would be figuring out what they were going to say when it was their turn. However, I can still improve on my leadership skills which is mostly trying saying what I actually think and put my ideas on the table. Though I did it more this time, I still have a lot of room to improve. During this project I felt I would get distracted when I did not feel like I had anything to do, like when we were filming and I did not do anything. I hope that for the next project I can stay more focused on my work.