Free Fall Lab Report

If the trials had followed conservation of energy as predicted, losing no energy to air resistance or any other outside force, the balls would have flown to the same height as our predictions; therefore, if the balls flew lower than the predicted heights, some energy must have been lost from the system. We can assume that some unknown thing took energy out of our system, preventing the ball from flying as high as it would with no energy loss. This unknown might be air resistance or a type of friction; it could also be something not yet discussed in class. Since the lab was performed assuming that this unknown did not exist (or was not affecting the system), it’s difficult for the group to be able to determine what the unknown is or to what degree it influenced our

Moving along, to the second experiment, “How does force affect your game?” concludes that using a 10 pound ball applying strong force provides a velocity (m/s) of 3.2, a result of 25 (J) for the kinetic energy, and 5 bowling points

Chemical equilibrium is a dynamic state where the rate of the reverse reaction is equal to the rate of the forward reaction. The chemical reaction is still occurring however the rate of reverse reaction is matching the rate of forward reaction hence the concentration of reactants (〖Hb〗_((aq) ) + O_(2 (g))) and products (HbO_2) no longer change, resulting in an equilibrium. (b) Which direction will equilibrium shift if the O_(2 ) concentration is increased?

1) Once the simulation opens, click on ‘Show Both’ for Velocity and Acceleration at the top of the page. Now click and drag the red ball around the screen. Make 3 observations about the blue and green arrows (also called vectors) as you drag the ball around.

In this experiment we first tried to find an experimental value for g. This was done by dropping a golf ball below a sensor that would read and chart the position vs time graph and the velocity vs time graph. From this we could receive an equation and numbers that are useful in finding the velocity and acceleration of the ball in order to find the experimental g value. Then we did another experiment in which we would hold out a ruler between another person's index finger and thumb and then drop it, measuring how many centimeters it took for them to catch the ruler. Using this and an equation we could measure their reaction time.

Acceleration, although the is on a slant, due to gravity is the same for all teams because it is a constant on earth. The Acceleration of Gravity = 9.8 m/s/s or 9.8m/s² and according to an introductory lesson plan on Acceleration of Gravity by The Physics Classroom (2015), “a free-falling object is an object that is falling under the sole influence of gravity. A free-falling object has an acceleration of 9.8 m/s², downward (on Earth)”.

October 17, 18, and 19, samples were collected from multiple sites along the BSR. The class was split into groups, and samples were collected from seven separate locations along the river and WWTP. There was also a sample collected by the S which is located between sites four and five. For each of these sites, there were ten groups from other labs that also collected a sample from the BSR. At site two of the river, the location included multiple sources of possible contamination. A drainage site was located 200 yards upstream, along with a small PVC drainage pipe next to the collection site. Not only was there drainage running into the river, the site was under a bridge, and contained other trash scattered throughout the area. The

Firstly, measuring the exact distance of the ball travel can be a challenge especially when zoomed far away. Also it is hard to tell exactly where is the highest point of the parabola vertically because there are dots between the lines, it is tempting to measure from the top of the dot which can thrown of the result by one or two whole numbers. As this is a computer generated experiment, the results would be much different if experimented in real life. Although the Gizmo accounts for air resistance, it does not account for other factors like the direction of wind or how much/little air resistance since the forces of nature are always changing. If the experiment was done in real life there must be multiple trials and each trial will not be exactly the

Air resistance acts to slow the projectile as it is traveling horizontally. This was never taken into consideration, aside from part five of the analysis section, but this was not used in the calculations and it could have changed the results a bit. Another source of error that was not accounted for was the force that was used to kick the ball, however this information would not be relevant to this experiment. Also, any spin or movement of the ball in the air could impact the results, too, but that is difficult to control. To improve this experiment, it could be conducted on level ground, so any divots or bumps on the ground do not throw off the data.

5. What are your predictions? I predict when the balls fall at the same speed it will hit the floor at the same time no matter if the balls size or weight. 6. Now, run your experiment.

From the information gathered from graph 1, we can see that each of the ball’s bounce heights did not vary significantly. Unexpectedly, the golf ball bounced the highest, smashing the tennis ball's results. While each of the balls shared similarity in terms of their bounce height, the golf ball was the only ball which bounced considerably higher than the others. The table tennis ball followed the tennis ball, but the ball which achieved the least height was the baseball. There was a significant difference between the bounce heights of the baseball and the golf ball

The purpose of the lab is to find a projectile’s horizontal velocity and make comparisons of the effects of different inclined planes with the projectile of a ball.

We have this problem with the ball “dropping” at an apparent average of 1.2 feet per second, according to the article. That’s hardly a drop in anyone’s book. Since any object in freefall accelerates at an average of 32

A system is at equilibrium when the forward rate of reaction is equal to the reverse rate of reaction (UNC, 2016). In cuvettes E1-E5, a chemical equilibrium is reached based on the reaction: Fe^(3+) (aq)+SCN^- (aq)↔FeNCS^(2+) (aq) One can be sure that the system is at equilibrium in these five cuvettes because there are concentrations of both reactants and the product when the cuvettes stop changing color (Table 2). If the system were not at equilibrium, one of these three substances would have reached zero, indicating the reaction had proceeded to completion.

Prisons are an institution designed to securely house people who have been convicted of crimes. These people are known as convicts, prisoners, or inmates that are kept in custody for a certain amount of time. The type of crime decides the length of the sentence. In the state of Kentucky, there are 13 state prisons. "The United States hold more than 1.3 million people in 1,749 state prison" (https://www.prisonpolicy.org/reports/pie.html). Prison is not a place for most people: sitting in a cell twenty-three hours of the day, working with little to hardly no pay, and constantly chained like an animal.