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Physics of a catapult
Physics of a catapult
The physics of projectiles / catapults
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The reason this experiment got those results is because of the way the catapult launched the marshmallow. The energy transferred from user to the ruler than the marshmallow is called kinetic energy. The meaning of kinetic energy is “energy which a body possesses by virtue of being in motion.” While when the marshmallow was stationary it had potential energy. The user transferred energy to the catapult then to the marshmallow which travelled across the room. Each launch the marshmallow was given a different amount of energy by the user. Even though this experiment used rubber bands they weren't used to help the launch marshmallow but keep it together. So that meant there was no elastic potential energy involved which could've insisted in this …show more content…
This resulted in less energy getting transferred to the marshmallow and didn't make it travel a great distance. The second time the user gave the catapult a lot of energy because they hit it harder, so the marshmallow went further. The energy was just the right consistently not too hard so it would go up in the air but the gravitational potential energy pull it back down and not too soft so the kinetic didn't run out after a short distance. Gravitational Potential energy is energy stored because of its location above the ground. While in the last launch the user hit the catapult too hard and quick so instead of launching the marshmallow far, it went upwards wasting the kinetic energy going upwards. Marshmallow was launched up instead of across the room. The gravitational potential energy pushed the marshmallow towards the ground instead of across. The stored potential energy the marshmallow possess turned to kinetic energy and the force of gravity made the marshmallow’s kinetic energy stop shortly then it was pushed back to the …show more content…
This was because there was no set spot where the marshmallow landed because of the way the catapult was built. If the marshmallow landed all in the same area the catapult would be called consistent but the catapult didn't so it was unpredictable. The distance the marshmallow landed away from the table depended on the way the user transfer the energy to the catapult. Too hard and the marshmallow would be launched up, too soft and it will run out of energy early but just the right amount resulted in the marshmallow travelling far. If the launches were done more than 3 times a pattern might have been uncovered or it could still mean the catapult launches the marshmallow in unpredictable patterns. This means the experiment wasn't reliable because the data didn't have a clear pattern. Without getting a clear pattern a reliable conclusion can't be made. If there were more launches instead of 3 there is a possibility a pattern could have been made. With only 3 launches done we cannot get a pattern and a reliable experiment and probably even if there was more than 3 there still wouldn't have been a pattern uncovered. The only reliable thing that can be dissected from this experiment is that the catapult didn't launch the marshmallow in a particular area. In every launch, the marshmallow landed in a different area in the room, not a consistent
Dropper Poppers are rubber toys that resemble half a rubber ball and are shaped as hemispheres. They are turned upside-down (or inside-out), left on a flat surface, and after approximately 5 seconds, the dropper popper flies upwards, going higher than its original position. Simply put, the rubber needs to return to its original position, and creates a high surface tension. The rubber’s urge to return to its original position also causes instability within the structure of the dropper popper. When you drop the toy onto a flat surface, the inverted part pops back out, slams into the surface, and causes the toy to bounce into the air. This is a very basic explanation of what causes the dropper popper to act the way it does, and the physics principles
The goal of this experiment is to develop a theory, which allows us to understand the motion of a marble.
Also we might have been shaking the test tubes at different speed which may have caused a greater number of bubbles to be released. Overall I felt that the experiment was accurate and reliable and there was not much that could have been changed on it.
For almost as long as civilizations began they have been fighting against each other. Often times these wars come down to who has the better military equipment. When one army creates an elite war machine another army is sure to soon copy or improve it. For example the U.S. Army Signal Corps purchased the first ever military aircraft in 1902 (Taylor). Two years later the Italians were also using aircrafts. The trebuchet catapult is no exception; it was one of the most destructive military machines of its time (Chevedden, 2000). A trebuchet works by using the energy of a falling counterweight to launch a projectile (Trebuchet). In this research paper I intend to explain the history and dynamics of a trebuchet catapult.
...e been beneficial to the experiment. An error may have occurred due to the fact that measurements were taken by different individuals, so the calculations could have been inconsistent.
Standing some 3 feet tall, this trebuchet could repeatedly launch a 2-3oz object in excess of 20 feet.
In this experiment, there were several objectives. First, this lab was designed to determine the difference, if any, between the densities of Coke and Diet Coke. It was designed to evaluate the accuracy and precision of several lab equipment measurements. This lab was also designed to be an introduction to the LabQuest Data and the Logger Pro data analysis database. Random, systematic, and gross errors are errors made during experiments that can have significant effects to the results. Random errors do not really have a specific cause, but still causes a few of the measurements to either be a little high or a little low. Systematic errors occur when there are limitations or mistakes on lab equipment or lab procedures. These kinds of errors cause measurements to be either be always high or always low. The last kind of error is gross errors. Gross errors occur when machines or equipment fail completely. However, gross errors usually occur due to a personal mistake. For this experiment, the number of significant figures is very important and depends on the equipment being used. When using the volumetric pipette and burette, the measurements are rounded to the hundredth place while in a graduated cylinder, it is rounded to the tenth place.
In the experiment these materials were used in the following ways. A piece of Veneer wood was used as the surface to pull the object over. Placed on top of this was a rectangular wood block weighing 0.148-kg (1.45 N/ 9.80 m/s/s). A string was attached to the wood block and then a loop was made at the end of the string so a Newton scale could be attached to determine the force. The block was placed on the Veneer and drug for about 0.6 m at a constant speed to determine the force needed to pull the block at a constant speed. The force was read off of the Newton scale, this was difficult because the scale was in motion pulling the object. To increase the mass weights were placed on the top of the ...
When the ball is dropped, the height decreases, and therefore so does the gravitational potential energy of the atom. At the same time, the velocity of the ball increases due to gravity, and therefore the kinetic energy. increases, as kinetic energy half the mass of the object (in this case). the falling ball) multiplied by velocity squared (Source: Physics for Your GCSE textbook). When the ball hits the floor the kinetic energy goes into deforming the ball from its original round shape to a squashed, oval in shape.
I choose this experiment because I am a hunter and having an accurate rifle is a good thing. In hunting the first shot counts. Now here is my data I got from the experiment but first a little history on the guns the .234 is a small hunting rifle use on deer and other small game. The .270 is a med. game rifle for deer and up to small elk. The 30-.06 is a large game rifle for elk and up to moose. My problem is the I wont to find out what is the most accurate rifle is. My hypothesis is if three rifles are tested for accusey then what is the most accurate the .270 is the most accurate rifle because a lot of people think the .270 is the most accurate rifle so I am going to test it. So I some research on my experiment I look to be one of the first one to do this
The independent variables in this experiment are the height of the ramp, the length of the ramp, the surface of the ramp, the weight of the marble, the size of the marble, and the surface of the marble. The dependent variable is the distance the ball rolls. The controlled variables are the starting position of the ball, the angle of the ramp, and the surface of the floor. Units: The height of the ball from the ground, the height of the ramp, and the distance the ball rolls will be measured in centimeters (cm).
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
We did not have a specific place on the ramp at where we would drop the mass pieces onto the trolley. We just dropped them anywhere on the ramp. The position of the collisions was different for all three trials which might have affected the results because the distance after the collisions was different for every collision. There was no consistency.
Projectile motion is the force that acts upon an object that is released or thrown into the air. Once the object is in the air, the object has two significant forces acting upon it at the time of release. These forces are also known as horizontal and vertical forces. These forces determine the flight path and are affected by gravity, air resistance, angle of release, speed of release, height of release and spin