In about 6 days we made our physics video. On our first 2 days we wrote our script and storyboard to start off the video. For the last 4 days we have done video recordings, voice recordings, and editing. We had to many different clips and even spend a half day practicing throwing frisbees, which was super fun. We finished before the rest of the groups so we helped other people with their videos. At the start though we had a disagreement on what we should do, but we finally chose frisbee.
Calculations
This is all of the concepts that we had in our video. You can read them all here or just view our video.
We calculated the velocity of the frisbee after being released.This gave us a horizontal velocity of 10.7 m/s. We found that the highest point of our throw was about 1.5 meters and it took 1.16 seconds to land on the ground. This gave us a vertical velocity of 1.2 m/s. Using the vector diagram shown in our video, we can figure out that the total velocity is 10.8 m/s which is about 24.15 mph.
Grip is also a huge part in the throw. When holding the frisbee, you want to make a gun with your hand and put your thumb on the top of the frisbee and your index and middle finger on the inside. For a visual demonstration, watch our video.
When throwing a frisbee, both your feet should be shoulder width apart and pointing the direction you are throwing. This ensures proper momentum transfer and direction.
We also used concepts to explain air resistance. If there were no air resistance, gravity would make the frisbee accelerate downwards at 9.8m/s2. However, because of the frisbee’s shape and the fact that it’s spinning, the air moves faster over the top of the disc than the bottom creating low pressure above the disc and higher pressure below. This helps keep the disc in the air for longer, allowing someone to run to it and catch it. The air resistance keeps the frisbee in the air longer, making it easier to catch. This is how an airplane’s wing works as well.
The frisbee should also be angled slightly towards the ground, because it will angle to the sky when thrown. If you start with it slightly angled to the ground, it with level out when thrown.
Snapping your wrist hen throwing the frisbee makes the frisbee spin. As the frisbee spins, it gains angular momentum(p). We calculate momentum by mass times velocity.(p=mv) If the momentum(p) increases, velocity has to increase to keep the equation equal. This is because mass will always be 0.175 kg, so the only way for mass times velocity to increase is if the velocity increases.
Reflection
One example of something I learned in the beginning of the project I did not want to do frisbee but over time I finally let it happen and I am glad I did. It was a lot of fun to make. Everyone have their own part of it and I also like editing and recording video so that was fun. I also learned that I am good at editing and it is also a lot of fun. I could have listened more to my group members because everyone had many awesome ideas. I also could have done more with the calculations because I let Tyler do them all because I did not understand it but I wish that I would have tried to work on them more.
We had many disagreements in the project because everyone wanted something different but after we picked frisbee it all went up hill till then. I would really like to thank my group member Tyler for doing the calculations and explaining them to us and James for the AWESOME intro and Lara for helping by voicing over it was a lot of fun and I am glad I was in the group. We did have some bumps because some people were just playing frisbee and not helping but they did stop and helped towards the end of the project.
Calculations
This is all of the concepts that we had in our video. You can read them all here or just view our video.
We calculated the velocity of the frisbee after being released.This gave us a horizontal velocity of 10.7 m/s. We found that the highest point of our throw was about 1.5 meters and it took 1.16 seconds to land on the ground. This gave us a vertical velocity of 1.2 m/s. Using the vector diagram shown in our video, we can figure out that the total velocity is 10.8 m/s which is about 24.15 mph.
Grip is also a huge part in the throw. When holding the frisbee, you want to make a gun with your hand and put your thumb on the top of the frisbee and your index and middle finger on the inside. For a visual demonstration, watch our video.
When throwing a frisbee, both your feet should be shoulder width apart and pointing the direction you are throwing. This ensures proper momentum transfer and direction.
We also used concepts to explain air resistance. If there were no air resistance, gravity would make the frisbee accelerate downwards at 9.8m/s2. However, because of the frisbee’s shape and the fact that it’s spinning, the air moves faster over the top of the disc than the bottom creating low pressure above the disc and higher pressure below. This helps keep the disc in the air for longer, allowing someone to run to it and catch it. The air resistance keeps the frisbee in the air longer, making it easier to catch. This is how an airplane’s wing works as well.
The frisbee should also be angled slightly towards the ground, because it will angle to the sky when thrown. If you start with it slightly angled to the ground, it with level out when thrown.
Snapping your wrist hen throwing the frisbee makes the frisbee spin. As the frisbee spins, it gains angular momentum(p). We calculate momentum by mass times velocity.(p=mv) If the momentum(p) increases, velocity has to increase to keep the equation equal. This is because mass will always be 0.175 kg, so the only way for mass times velocity to increase is if the velocity increases.
Reflection
One example of something I learned in the beginning of the project I did not want to do frisbee but over time I finally let it happen and I am glad I did. It was a lot of fun to make. Everyone have their own part of it and I also like editing and recording video so that was fun. I also learned that I am good at editing and it is also a lot of fun. I could have listened more to my group members because everyone had many awesome ideas. I also could have done more with the calculations because I let Tyler do them all because I did not understand it but I wish that I would have tried to work on them more.
We had many disagreements in the project because everyone wanted something different but after we picked frisbee it all went up hill till then. I would really like to thank my group member Tyler for doing the calculations and explaining them to us and James for the AWESOME intro and Lara for helping by voicing over it was a lot of fun and I am glad I was in the group. We did have some bumps because some people were just playing frisbee and not helping but they did stop and helped towards the end of the project.