Have you ever tried sliding across a frozen pond? Then how about sliding across a soccer field? Notice any differences? Do you ever wonder why you can easily slide across ice, yet skid to a stop on grass? A force called friction is always at work that opposes movement in a certain direction. Friction is a force that is created when two surfaces come in contact and move across each other (Funk and Wagnalls). Many times friction is an overlooked force which has had greater impact on our lives than we would generally think. Without the force of friction our everyday lives would be different.
As defined, friction is a force that is created when two surfaces come in contact and move across each other (Webster). But why is it so hard to move two surfaces when they are in contact. Wouldnt the force of friction make it easier? Well, if friction was going in the same direction as the object you were moving, then it would be. But force of friction actually goes in the direction opposite the direction you were pushing the object. This opposing force would make it a lot harder for surfaces to pass each other.
Encyclopedia.com defines friction as a "resistance offered to the movement of one body past another body with which it is in contact." Since the force of friction is a resisting force, surfaces rubbing against each other are opposing each other, making the objects harder to move. Friction is a benefactor in many cases. Friction is present everywhere and people experience friction every day of their lives. Friction is present when you walk and prevents you from slipping each time you take a step. Friction is present when you drive a car. It keeps your wheels on the road and helps you stop the car when you press the brakes. It is also present in the little things you do such as rubbing your hands against a table. If there were no friction, life would probably be a lot harder. One would not be able to drive because the brakes would not be able to grip the wheels, making it impossible to stop the car.
Even tackling and taking a hit has to do with physics. Football is physics in a form that everyone can understand. It is a living and breathing example of everyday physics. ... This project shows how physics is used in kicking the football. ... With out physics the kicker would not truly understand what he is doing out on the field without know some sort of physics. ...
Without motion, life would cease to exist. You can look all around you and find something that has motion. For example, staring out of your window and the leaves on a tree are blowing back and forth. This is due to the effect of the wind. When we throw a baseball or drop a glass of milk and crashes...
What Is Physics and What Are Its Uses? Physics, a branch of science, is traditionally defined as the study of matter, energy, and the relation between them. ... The medical field has seen enormous breakthroughs because of principles of physics. ... If not for physics, ultrasounds would never have been discovered and utilized. ... We have yet to see a black hole, but physics has explained what one is, and why we cannot see it. ...
• Physics has been studied for thousands of years but not until comparatively recently was our modern understand of motion established. ... • Using east, west, and etc. is not so effective in physics therefore we draw a coordinate axis to determine positives and negatives. ...
The Physics of the MRI MRI, or the Magnetic Resonance Imaging, is a machine that doctors use that provides an unparalleled view inside the human body, using the physics of magnets and radio waves. ... MRI owes this value to the science of physics, though, because without physics, there would no application of magnets and radio waves and protons and frequency, all of which contribute to the success of MRI. ...
The Physics of Baseball Baseball is the longest running professional sport in the United States. Most people do not realize it but there is a great deal of physics involved in baseball. ... In conclusion, baseball has a great amount of physics involved in it. A couple of the major points concerned with the physics of baseball are air drag and Magnus force. We are sure that most baseball players and fans do not think about the physics of baseball. ...
The topic I chose to study for assignment two is the physics behind auto racing. The first article I found on the web was called The Physics of Racing. ... This article helped me to understand the basic physics needed in understanding car racing. The first step in learning the physics behind car racing is weight transfer when braking, accelerating, and turning. ...
Modern physics has had a profound influence on many aspects of the human society. ... The real roots of physics originate from Greek philosophy in sixth century B. ... Eastern mysticism has the philosophical framework and it has been recognized as having many parallels with modern physics. ... Quantum theory is a revolutionary concept because it abolished the classical view of physics (also known as Newtonian physics, advocating that there is a world which exists apart from us and it assumes that one can observe, measure and speculate about the external world without changing it) and becam...
STAGE 2 PHYSICS THE PHYSICS OF CAR RACING INTRODUCTION Physics is the science of measurement. When theories are taken to the laboratory (or the race course) for testing, all the mathematics must boil down to quantities that can be measured. In racing, the fundamental quantities are distan...
