Includes information on both kinetic and potential energy.Ĭlick on this timeline to learn more about the history of roller coasters. Take a look at "Free Fall" and "Related Resources" at the bottom of the page.Ĭlick on the different physics terms to learn more about how they relate to roller coasters. Note: The site includes advertising.ĭesign your own roller coaster and see if it passes a safety inspection. Other topics include forces, gravity, inertia, and acceleration. The second page has an animation that shows the point when potential energy is converted to kinetic energy. This site explains how roller coasters run. When you're done, your coaster will need to pass an inspection for both safety and fun.Įverything you ever wanted to know about Roller Coasters You will decide the following - the height of the first hill, the shape of the first hill, the exit path, the height of the second hill, and the loop. You will be building a conceptual coaster using the physics concepts that are used to design real coasters. Try your hand at designing your own roller coaster. The gravitational constant is the acceleration caused by Earth's gravity at sea level and is equal to 9.81 m/s^2 (32.2 ft/s^2).Īlso known as a gravitational force, a g-force is equal to the force exerted on an object by Earth's gravity at sea level. Kinetic energy is the energy of an object in motion, which is directly related to its velocity and its mass. Potential energy is energy stored by an object ready to be used (in this lesson, we will use gravitational potential energy, which is directly related to the height of an object and its mass). How quickly an object speeds up, slows down, or changes direction equal to change in velocity divided by time.įriction is a force caused by rubbing between two objects. Velocity is a combination of speed and the direction in which an object travels.Ĭritical velocity is the speed needed at the top of a loop for a car to make it through the loop without falling off the track. Speed is how fast an object moves and is equal to the distance that object travels divided by the time it takes. Gravity is a force which draws any two objects toward one another.
Explain in physics terms how their roller coaster works.Explain why it is important for an engineer to know how a roller coaster works.I just wanted to say that this is a very informative, clear and easy to understand post. It's possible to, especially within benchmarks, but very unlikely in everyday use for the typical home user. In practice though, you honestly are very unlikely to see much of difference at all. Generally speaking, a higher allocation size will decrease seek times, giving slightly better performance, because the HDD doesn't have as many records to search through but at the same time, it wastes a little more space.
When you go to put a second file on the HDD, it will go into block 2 which starts on the 257th KB on the disk, not the 9th KB right after the first file. This means your file that is 8KB digitally is effectively taking up 256KB worth of space on your HDD physically. However, the hard drive can't use the rest of that 248KB of space because it would have no way to reference it if it did.
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The HDD will put that into block 1, which means there is another 248KB of free space left in that block (256-8). Now say you go to put your very first file on this drive, and it's an 8KB file. These numbers are also essentially what your MBR/GPT will reference when it goes to look for a file. Your computer basically divides your HDD into a bunch of 256KB blocks, and gives them numbers. So for your example of a 256KB allocation size. There was a post somewhere which said that allocation size merely meant amount of space allocated for each portion of data will be 1/2 the size of the allocation size, which i didnt really understand but again, not that important I suppose.Īllocation size is the smallest amount of space that data can take up on your hard drive. Thanks for the link, I had already formatted it to exFAT with 256kb of allocation size, while the recommended is 128kb, but i dont think it will make much of a difference
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