Motion
Galileo's Naturally Accelerated Motion
One of the single most important men in the field of physics is the Italian born Galileo Galilee. During his time theorizing and experimenting within the field of physics, he formulated one of the most widely taught theories, that of naturally accelerated motion, which posits the idea that bodies during falls pick up equal levels of speed in equal time periods. Within the concept of naturally accelerated motion, an object which falls out of a resting state moves double the speed at two seconds of falling than in one, which is then continued throughout the time the object is in motion..
According to this theory, the natural acceleration of bodies in falling motions always increases in correlation with the amount of time that body has been falling. As states earlier, a body will fall twice as fast after two seconds then one. And so, after twice that amount of time, a body will reach speeds of four times the original speed of fall. This then continues for the entire length of the area covered by the falling body in motion. Much unlike more complex conceptions of physics, this theory can be proven by students and amateurs even in modern day classrooms.
One of the ways Galileo confirmed his conception of naturally accelerated movement was through experimentation using a ramp with a large degree slope. Galileo measured the speed which the ball would travel based on the measurement of how many meters that ball had traveled. This experiment can be repeated even today using the same basic tools and levels of measurement. If a ball has been dropping for two seconds, it will be traveling at a rate of four meters per second. As it reaches three meters, it will be traveling at a rate of six meters per second, and so on. Current findings should still portray Galileo's original findings. These findings can also be portrayed using a linear graph with the slope steadily increasing by double the amount of space traveled by the body in motion. It is the universal nature of the findings of this theory which proves its validity.
Physics of Swimming Streamlining "drag" effects a swimmer performance speed. Key words Friction a solid a fluid. Viscosity - density liquid. Drag forces Impulse related momentum. I trials a swimmer starting a suit, suit cap (hair creates drag), added a piece clothing swimmer trial show weight, drag slows swimmer . Physics of Swimming The physics of swimming The density of water is 1000 times higher than density of air. Therefore, water is more resistant
Physics of Magnetism An Overview of the Exciting World of the Modern Physics of Magnetism and Magnetic Fields The Physics of Magnetism and Magnetic Fields Today, magnets and magnetism literally help the world go 'round and these fundamental forces have provided the source for countless innovations that have improved the standard of living for many people. As can be seen in the graphic on the cover, magnetic field lines are a way to
A phase change is what occurs when matter moves from one of these states to the other. The melting of ice into liquid water, for instance, constitutes a phase change, just as the boiling of water into invisible water vapor, or the condensing of gaseous water vapor in the air into liquid water on a cool windowpane or glass of water, are also phase changes. Phase changes generally require a
Physics of Swimming Swimming is a sport as well as exercise done in a water body which involves the movement of every body part and dragging the movement against the water body. Individuals practicing swimming wear swimming suits, which are specially designed form of clothes used while in water based activity (Haphaestus, B., 126). Swim suits help in reducing drag in water which in turn improves the propel lance in water. The
The important technical factor that makes cruise missiles soar over rocket-powered missiles is that, as it breathes air, it does not have to carry an oxidizer and thus its range is considerably longer compared to a rocket powered missile of equal weight. The rocket powered missile is the frontrunner on all other aspects. For example it travels much faster, it can fly low, it can have lower radar cross sections,
According to Newton, "To every action there is always opposed an equal reaction; or the mutual actions of two bodies upon each other are always equal, and directed to contrary parts," (Zimmerman, 2008). In the act of pushing a pencil, the energy placed into pushing the pencil does not simply disappear with the writing. Most people write on flat, hard surfaces, such as wooden or acrylic desks. When these
Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.
Get Started Now