What Factors Affect A Crater’s Size My partners and I made two hypotheses. Our first hypothesis was that if we dropped the same marble at different heights, then the size of the crater would change because of the different gravitational pull. Our second hypothesis was that if we changed the mass of the marble we dropped, then the crater size would change because of the different mass combined with the gravitational pull. With our first hypothesis, we conducted an experiment where we dropped the same glass marble into a tray of sand at different heights of 20 cm, 40 cm, and 60 cm. The average width for each height were 2.8 cm, 3.5 cm, and 4 cm. The average depth for each were .7 cm, 1.5 cm, and 2 cm. Therefore, our hypothesis is correct because …show more content…
Using our qualitative observations, we saw that as the height the marble was dropped from increased, the sand and orange powder in the tray reacted more, meaning that it was being hit with more force. By “reacted”, we mean that when the marble hit the sand, some of the sand around the marble sprang up in the air. With our second hypothesis, we dropped 3 different sizes of glass marbles each from a height of 40 cm. From smallest to largest, the average widths were 2.8 cm, 3 cm, and 3.7 cm. and the average depths were 1 cm, 1 cm, and 1.2 cm. Thus, our hypothesis was partially correct because for the most part the craters did change size. Although the average depth for two out of the three marble sizes was the same, the largest marble still changed the crater size slightly. As far as the widths of the craters, each time we changed the marble size, the width of the crater changed also. Going along with our data, in our qualitative observations we noticed that the largest marble created the widest craters and the smallest marble created the narrowest craters. Overall, this experiment did go as we expected but we did have to make one minor change. At first, we were going to try from 4 different
Snow globes are made of clear glass, a transparent sphere with a scenic view and a plastic toy inside the globe. The globe must be shaken to actuate the snow so the white particles can fall gradually to reach the base. When the marble (object used for this experiment) falls, it experiences two external forces which are; the gravitational force and the aerodynamic (fluid resistance) drag of the marble, which affects the rate of the marble. As the marble is falling, the speed is increased due to the gravitational force, which is pulling the marble downwards to the base of the beaker until it reaches the terminal velocity, where both external forces are equal. However, there are factors that can affect the marble’s terminal velocity, such as
In site one there was a high proportion of very unspherical rocks. According to this the hypothesis is right, in site two there is a lot more smother rocks medium sized and in site 3 there are very small pebbles which are very smooth and spherical. The pebbles get smoother and rounder while it goes downstream. Due to us only taking about 10 rocks our result may have been not right as there were some pebbles which were largely over sized. Most of the other load is dissolved by solution such as limestone and chalk
Conclusion: The results of this lab were found through seemingly simple equations, basing all of your work off of data such as time and distance can become frustrating due to human inaccuracy, but the results show the height and initial velocity of the marble. The results are all reasonable compared with the beginning values that we collected during the lab, and even without calculations fit into the equation. The concept of projectile motion was the basis of this lab, focusing on using kinematic variables and equations to find the
Christopher and Kate noticed that after a rainstorm some of the rocks in their yard appear to shrink. They wondered how the mass of the rocks changed when dissolved in water. To
To determine whether the height at which a marble is dropped affect the size of the crater.
Introduction: Accuracy and precision were the major aspects of the lab. Accuracy is how close the average of the measured values are to the actual value. Precision is the closeness of repeated measurements. In the lab, the aim was to get as close as possible with both accuracy and precision when determining the mass and volume of the spheres. The mass was determined by weighing the spheres on the Analytical Scale and Triple Beam Balance Scale. The volume is determined by measuring with a ruler and by water displacement. The standard
Scientists model the manner in which a liquid wets fibers, gaining useful insights for improving glass wool properties. Sandcastles are a prime example of how adding a small amount of liquid to a granular material changes its characteristics
What we did in this lab first we did was shake the cup with the sugarcubes in it and break it down to weigh it. The cubes represented the rocks, we used sugarcubes because they are like rocks and they break easily. I thought the sugarcubes were going to break down and it was just going to be powder. What did not happen was they broke all the way down to a powder. My data does not make a perfect line because it was a prediction and predictions are not always right.
Hypothesis: No the size of the crater and ejecta will change because it will have lighter and harder impacts on the surface.
Marble 5; 5.1g; total mass is 25.9g; total volume is 10.5mL, and volume of Marble 5 is 2 mL. Marble 6; 5.6g; total mass is 31.5g; total volume is 13mL, and volume of Marble 6 is 2.5mL. When analyzing the results it was discovered that as the number of marbles increase the total volume increased due to the increase of particles. The graph shows a straight line which also demonstrates how the ratio of mass and volume will not cause a change in the density no matter how much of the substance is being used. Possible errors that could have skewed the data include the water not being 30mL at first or a broken calculator. If the water was not originally 30 mL then the total volume of the marbles would be incorrect as the number wouldn’t be accurate because of uneven starting points. If the calculator used to find the answers is broken then the answers would all be inaccurate, which would mess up the data.
A series of experiments was performed on glass beads and natural clean dry sands under the objective of the current work of performing parametric studies. Therefore, new techniques and methods were utilized to predict the gradation of the natural cohesionless silica sands tested in addition to the conventional geotechnical laboratory experiments, which were carried out to predict the mechanical characteristics of such soils. Moreover, ideal laboratory simulations for the SPT were performed under several particular relative densities, loading conditions, and stress-strain controlled boundaries. Additionally, the obtained results from such series of experiments were stored in digital forms for further processing and analyses.
Nathaniel Hawthorne’s The Scarlet Letter, a dark tale of sin and redemption,centers around the small Puritan community of Boston during the 17th century. In the midst of this small community is Hester Prynne. She is a woman that has defied the Puritans, taken the consequences and in the end conformed with the Puritans. It did,
In Measuring and Understanding Density, several experiments were performed to find density of regularly shaped objects, irregularly shaped objects, liquids and gasses. An additional experiment was done to find the specific gravity of a sampling of liquids. The purpose of the experiment was to provide a better understanding of density and to be able to extrapolate unknowns based upon these calculations. The experiments yielded data in keeping with Kinetic-molecular theory in regards to the density of water versus its temperature. Key measurements and formulae were also used to determine densities of metal and plastic objects as well as irregularly shaped rocks. It is possible to find the density of an object (be it liquid, gas or
Massive boulders rained from the sky; each breaking as it struck the ground. Debris scattered and