How Does Temperature Affect The Height Of Basketball

In football the force of impact can be dangerous. Helmets are constructed to protect the brains of the players. Without this protection the player will receive major damage from the impact of the force. In this lab, students will construct a device that will protect an egg from the impact force from the drop. The egg acts as a substitute for the brain and the device is the “helmet” for the egg. The independent variable of this experiment is the trials; the dependent variables of this experiment are time and velocity. By using the laws of physics, students will construct an efficient device that will protect the egg from the harsh impact of force.

Volleyball is the constant confirmation of Newton’s first Law. Every object remains at rest or in motion

When a ball bounces, the kinetic energy is transformed into elastic potential energy. However, the transfer of energy is not exactly perfect, as some energy is lost through heat and sound. The coefficient of restitution is a formula that takes the square root of the ratio of bounce height to drop height. The result ranges from 0 to 1, where 1 equals a perfect elastic collision.

It stands to reason that with a hoop placed 10ft off the floor, anyone who wants to put a ball through an 18in basket would need to be tall. However, throughout history, there have not been many people, men or women, that could reach that tall. This poses a unique challenge of having a person who can at least jump and throw a ball accurately enough to have the ball sink through the hoop. With that, there still needs to be some tallness to the person jumping and throwing the ball. Most people can only jump a few feet up into the air, and some are not even able to make it that high. So how tall does a basketball player need to be?

3. Ball. The ball should be made of rubber and it should be surrounded by wool or any fabric material. The color of the ball may be yellow or white. It should be seamless. The outer surface of the ball should be uniform. The diameter of the ball should be 6.35cm-6.67cm. Its weight should be 56.7-60.24gm. It should have a bounce of 135 to 147cm when dropped from a height of 254cm upon a concrete surface.

They made it possible to measure the amount of energy while varying the height of the bounce. In this experiment, specific materials were chosen to help the experiment test the hypothesis more precisely. The Spalding 28.5 basketball was used specifically because most athletes use this size basketball. It provided the most accurate results, because the ball is an indoor game ball, which is the most accurate ball to use, since there is not much padding on the ball to affect the bounce height recorded. Centimeters were chosen as the unit of measurement over inches because it would be much harder to calculate the potential energy of the ball if the unit of measurement was inches. All these factors contributed to in the process of creating a more precise experiment, to calculate energy. This experiment may be a good fit for somebody, if they are interested in kinesthetic, or finding out the amount of energy the body uses during any physical activity. By doing this experiment, someone may discover ways to prevent fatigue, and what surface to play basketball on.

In 1898, the Haskell ball was invented. All of today’s wound balls are a direct descendent of the Haskell ball. In 1966, the first solid one piece golf ball was produced. This later led to the development of other solid balls, such as two-piece balls and multi-layer balls. For quite some time golfer’s strongly preferred wound balls because they seemed to provide better spin control over the newer solid balls. However, wound balls are not as durable and tend to not travel as far as some solid golf balls. At first, golfers did not like the hard feel of solid balls and the fact that their spin was harder to control. With the development of two-piece and multi-layer balls, these problems began to fade away. Having an exterior layer helps “soften” the feel at impact. However, the high-restitution core allows for more of the energy from the golf club to be transferred to the golf ball at impact. This means that a two-piece ball deforms less during the impact from the club than a one piece solid ball and therefore conserves more of the energy from the club head. The coefficient of restitution is discussed in more detail in the

potential energy. If you drop the basketball, the force of gravity pulls it down, and as the

The results of the study show the difference between five trials of one single object fall from a constant distance. The other dependent variable in this experiment was the time in which the object was measured (.5, .75, 1.0, 1.25 seconds). This variable serves as a checkpoint; every time the object reaches one of these time slots, its distance in meters (the independent variable) was measured. It is clear in every trial that the object gains momentum, and as each quarter of a second passes, the distance the object has fallen increased exponentially. In each trial, the distance between 1.00 second and 1.25 second nearly doubled, which was much more significant than the

To exactly measurement where the ball would bounce, we stick a carbon paper over a white paper on the floor so that once the ball bounced on the paper it left a mark.

This software assists in achieving the change in the position and determining the velocity. Once completed a plot was created to obtain a slope. The slopes on the graph are linear, and the points plotted fall on the line of best fit. The acceleration due to gravity for the free falling ball was measured to be 10.697 m/s^2 and 9.997 m/s^2 for the bouncing ball. The values are relatively close to the actual value of 9.8 m/s^2 . Once g values were obtained a percent error was calculated. For the free falling ball the error came out to 9.15% and percent error of the bouncing ball was 2.01%. Evidently from the percent errors there was not much error during the lab. Since there is a very small error it could have been from miss reading of the balls position or human error. Overall the lab was a success. The goal of measuring the acceleration due to gravity was achieved and the values received were relatively close. The predictions that a ball free falling would have negative velocity and then become even more negative and that a ball bouncing is expected to bounce up and have a positive velocity, then become negative were accurate and proved

In order to assess the accuracy of the predicted medium range, a circle using the mouth of Solo cup was drawn on the carbon paper. Only Trial 3, as seen in Table 1, landed within this circle. The first two trials were very close to landing within said circle, but were slightly off. There could have been a few sources of errors. One very easy mistake was poor positioning of both the circle on the carbon paper, and the carbon paper on the floor. Along those same lines, poor angle alignment between the projectile launcher and the carbon paper resulted in slight deviations from the circle. Furthermore, the projectile launcher was not clamped down, and could have been moved ever so slightly to affect the trajectory of the ball. Another source of error could be attributed to slight errors in measurements. Meter sticks are a strong and reliable measuring tool, but has serious limitations when the surfaces are not all even. Human error could have also affected the results, as bad judgment in linear alignment could have resulted in less accurate results. Overall, the average observed range was an acceptable

To calculate the gravitational potential energy through experimental values, we dropped a racquetball from a height of one meter and measured the height at which the ball bounced back up from the ground. These values were used to find the total mechanical energy that was

Once in contact with the floor, the kinetic energy converted to elastic potential (deformation), sound and heat energy, then back to kinetic energy when bouncing and gaining gravitational potential energy as the height increased. The ball never goes back up to the height it was dropped; it only bounces to a new peak which is lower than the original peak height. This is because the Law of Conservation of Energy does not ‘give’ the ball more kinetic energy to bounce back up after the energy has been converted and lost to sound energy and heat energy whilst hitting the ground (hence the ‘boing’ sound it makes, which proves the Law of Conservation of Energy). This alone proves the Law of Conservation of Energy, as the ball never bounces back to the same peak. The ball should have a higher temperature than it originally

The purpose of this lab was to examine projectile motion and how the horizontal motion is independent of the vertical motion. Data was used to calculate gravity given that the vertical acceleration was only due to g. The data was collected by sending a ball down a ramp that had a horizontal end. At the end of the ramp there was a monitor that recorded the velocity of the ball as left the ramp. Carbon paper was laid on the ground where the ball landed; the spot that was left behind was measured from the origin that was directly below the end of the ramp. The height of the ramp was also measured, which was 0.757 m. The two balls diameter and mass were measured. Ball one had the diameter of .0255 m and the mass of 0.0601 kg, ball two had the diameter of 0.0242 m and the mass of 0.0209 kg.