This website reports the latest discoveries in physics. There are tons of information about different subjects in physics. In the explore tag there is a search bar where they provide a lot of different websites on the topics you search up. The websites are rated so you know if they are useful. There are a lot of intriguing topics, such as things that we wonder about everyday. There are many articles, videos and experiments. It covers a huge amount of information needed for my project.
Physics Experiments This website displays a variety of physics experiments. It explores many different parts in … Continue reading
This website explains the force of. Gravity is the force that makes two objects pull towards each other. We are pulled toward the center of the Earth because of the gravitational pull caused by its mass. The more mass the object have, the more gravity it will have. This is why heavier people are pulled harder to the ground. Planets orbit around huge stars because the stars have more mass and gravity. An example is the Earth orbiting around the sun. The Earth stays in the “track” that goes around the sun because of the gravitational pull the sun has towards it’s middle. This website is a good source for learning about gravity and how it works.
This youtube video explains clearly the different types of bridges and forces. There are two forces, tension and compression. Different types of materials are best for withstanding each forces. There are a variety of different types of bridges, and each one corresponds to the forces differently. Depending on the shape of the bridge, certain materials are the best. It also displayed a diagram for where tension and compression are on a truss bridge. From this video I learned the physics in bridge building. I think this will be a good foundation for building my own bridge.
Calculating average velocity or speed
This video on khan academy show how to calculate two dimensional velocity or speed. It is basically calculating the average speed over a time period. For velocity, you just have to add the direction the object is moving. It might help me in calculating velocity for my project because I’d like to further explore physics – the study of matter in and its motion and behavior through time and space.
Energy transformation on a roller coaster
This website shows the physics in of work and energy in roller coasters. It is helpful because it helps me understand how a roller coaster works. Roller coasters don’t have any engine in them, and they usually only depend on the first propeller in the track. There is usually a motor or a lifting chain at the the beginning of the track. When the roller coaster gains height, it gains potential energy, which is the amount of energy stored in an object due to position. For example, a heavy ball at the top of hill has potential energy because if it falls, their will be a lot of energy in the fall. When the roller coaster falls down the hill, it will lose potential energy and gain kinetic energy, which is the energy of motion. When the roller coaster goes up a hill, it will lose kinetic energy and gain potential energy. Mathematical equation can be used to calculate how much kinetic energy there are. This process is shown on the diagram below.
This video talks about the hardest move in ballet, and how it involves physics. To many, one of the hardest moves in ballet is considered to be 32 pirouettes on point, which also consist of fouettés. This difficult move is seen in Swan Lake, performed by the Black Swan. The video explains how physics help the Black Swan maintain her balance.
This is helpful to me because I now understand the physics behind this difficult move and why skilled ballerinas are able to execute it without falling.I learned that in between each turn the ballerina pauses for a split second. Her supporting foot then flattens and twists while rising back onto point. I also learned the reason why you barely notice the pause, it’s because her other leg never stops moving.This video showed the pirouette in slow motion which helped me visualize it better.
I found this video on the hardest move of ballet. It says that it involves physics. The hardest move in ballet is 32 pirouettes en pointe. That also includes fouettes. This is seen in Swan Lake and is performed by the Black Swan. The Black Swan must keep her balance while spinning. This video explains how physics help the Black Swan stay on balance.
This was helpful because now I know how the Black Swan manages to stay on balance and how she doesn’t fall. By doing the math I know how to manage to do a fouette like the Black Swan. This is very helpful because it is a visualisation on how to do a proper fouette. In the video they slowed it down and no human can slow down the speed of their turn, because they will lose the momentum and they won’t be able to spin properly. So this video was very useful.
Relationship between mathematics and physics. This site explains how mathematics and physics are closely related to each other. They were once regarded as the almost the same subject because math was used to calculate things in physics. Issac Newton even regarded geometry as the same mechanics. Some outer branches developed due to their relationship, such as calculus. It was developed due to the need in physics.
“Mathematics has already been described as “an essential tool for physics and physics has already been described as “a rich source of inspiration and insight in mathematics”.
For me, this site let’s me understand about how mathematics is used in physics. It shows how closely they are related.
A cycloidal pendulum swings at equal time intervals. This fact was discovered by Christaan Huygens through mathematical assumptions.
