Inclined planes are yet another simple machine that you use nearly every day. Any time you walk up a slight hill, you are using an inclined plane. Any time you ride your bike or drive your car up a hill on the way to school, you are using an inclined plane. Even when you push your grandma in her wheel chair up the handicap ramp you are using an inclined plane. So to summarize what an inclined plane actually is, it is a flat surface on an angle that is always used to multiply your force. BUT WAIT! You, Mr. Davis, and I both recently learned that that statement ISN'T always true. You concluded while watching the Olympics that snowboarding ramps aren't force multipliers, but speed multipliers. All inclined planes that are force multipliers have a length longer than their height. However, with snowboarding landing ramps, especially during the snowboard cross event, the big jumps have heights longer than the lengths. For IMA in inclined planes, you divide the length by the height, so when this scenario occurs, an IMA of less than one occurs which indicates a speed and displacement multip...
the load , the height of the ramp or the angle. I have chosen the
As a simple case, consider the simulation of document . In the frictionless case, the only force acting on the skater is gravity. Therefore, according to the conservation of energy, the sum of the kinetic and the potential energy remains constant. As the skater climbs the ramp, his height increases. According to document , as the skater’s potential energy is proportional to his height, the skater’s potential energy increases. However, the skater’s velocity also decreases as he climbs the ramp. Again, according to document , as the skater’s kinetic energy is proportional to his velocity squared, the skater’s kinetic energy decreases. The interplay between these two energies is such that their sum remains constant and the law of conservation of energy remains
In agreement with preliminary question 3, Figure 1 demonstrates that the force necessary to keep the block sliding is significantly less than the force that is necessary to initiate the slide.
The Trebuchet was a devastating siege weapon that was used all across the world in the Middle Ages. The trebuchet was a highly destructive siege engine that caused the fall of several castles and thousands of soldiers of all various armies. In this essay I will be talking about the materials used to construct this siege engine, the countries and empires in which this siege weapon was used and the types of people that used this device.
The trebuchet was capable of taking down castle walls, fortresses, and entire cities. They were used as an ancient war engine in the early 300 B.C. in Ancient China. The trebuchet reached Europe in the Middle Ages, in the year 500 A.D. It was originally primarily used by the French, and were temporarily used as a power source. It will later be used as a weapon, introduced to England during the Siege of Dover in the year 1216. The trebuchet was used to take down the Dover castle's walls in this Siege.
Arm length ratio - if the length of the firing arm from the fulcrum to the
The history of a trebuchet is long and complex seeing as civilizations have struggled to properly maintain records throughout time. The term trebuchet comes from the French word “trebucher”, which means “to throw over”, or “to fall”. The war machine was called “Ingemium” in England, called so as it was Latin for “ingenious”. This ancient form of the trebuchet is called a traction trebuchet. Instead of utilizing a weight and gravity as modern ones do, this structure required man power to pull the arm of down in order to then release a projectile. These projectiles would then incessantly bombard city and castle walls. The trebuchet would, over many years, come to dominate battlefields in the place of catapults and
Investigating the Efficiency of Different Pulley Setups. Aim In this experiment I will be investigating the efficiency of five different pulley setups. These are the results shown below. Background on pulleys A pulley is one of the simplest mechanical powers or machines consisting of a grooved wheel/roller(s) for a cord or string to pass over a mounted block this is used for lifting a mass or changing direction of power.
I am now a professional snowboarder with my friends at Mammoth Mountain, the local resort, anxiously preparing for the X- Games slopestyle competition that is a few days away. The slopestyle competition that I am competing in is a snowboarding course that consists of rails and jumps that are
During the process of the Rube Goldberg machine, there were quite some difficulties with building the machine as a whole. There was a lack of social and technical ingenuity when trying to build our separate machines, while making the machines flow together and waiting for the final results to work. Some obstacles that we came across were the following:
William Sleator’s story, “The Elevator” takes place in an apartment building. Martin, a thin 12 year old, is afraid of this fat lady on the apartment's elevator. In this story, Martin sees this fat lady on the elevator, he gets scared of her cause she stares at him when he rides. His dad is not being supportive of him so he has to figure the problem out on his own. On lesson the story suggests is Family isn’t Always Supportive.
The summation of force helps you with your performance in sport. This method aids your actions amidst the game, and improves your hits, throws and pushes by joining all your energy from your muscles
Sledding isn't just taking a board and skyrocketing down a hill. If you're looking for some science and money saving, you should make your own board Different sizes, materials, and shapes will show how a simple change works with friction and gravity. not only that, but a sled and a hill pretty much makes your own private roller coaster in your backyard, Just put some obstacles and you set. Also, you can go on different hills that will fit your speed.. Feeling brave? Go on a large hill. But if your skills aren't sharp go for a little kiddie hill. Overall , sledding is an adventure you will never
We ran into Newtons First Law, which claims that an object resists change in motion, as the marble rolled down the floor it didn’t stop until it was acted against by friction. As we moved on, Newtons Second Law came into play when we were creating our lever as we need a ball that would roll down with enough acceleration that it could knock down the objects. Newton’s second law claims, that F=MA. So, we choose a golf ball since it would have more mass than a rubber ball, but it would have less acceleration when the lever was started. This way, it would knock the upcoming objects. Newtons Third Law claims that every action yields an equal and opposite reaction. This is proven in our Rube Goldberg Machine when the small car was rolling down the tracks as the wheels pushes against the track making the track move backwards. The track provides an equal and opposite direction by pushing the wheels forward.
Imagine an angry hive of bees. Now, put that under the hood of the beautifully curvy body of a mid 90s Japanese sports car and crank the revs up to 9000. The rotary engine, a Mazda classic, is one of the most satisfying, temperamental,and rev happy engines of all time. The Wankel/Rotary engine is an internal combustion engine that uses an eccentric rotary design to convert pressure into rotating motion. Instead of the more common reciprocating piston designs, the Wankel engine has the advantages of simplicity, smoothness, compactness, high revolutions per minute, and a high power-to-weight ratio primarily because three power pulses per rotor revolution are produced compared to one per revolution in a two-stroke piston engine and one per two revolutions in a four-stroke piston engine.