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Ge150 Essay

1675 words - 7 pages

Cover page: Unit 2 Lab 2.1.1 States of Matter
Survey of the Sciences
Week 2
Assignment 2 – Lab 2.1.1 – States of Matter
Date of assignment: 12/18/2013
Date turned in: 01/15/2014

Liquid at over 650K | Liquid under 650K |
The molecules appear to be faster and more spread apart | Molecules are even faster, mostly touching and mostly compact |
Gas at over 1540K | Gas at under 300K |
Faster and mostly apart and randomly touching | Slower, more clustered and in ring shapes and mostly touching with less space apart |
Solid at 350 – 360K and over 600K | Solid at under 10K |
Moving from one position to another at accelerated pace but mostly touching at an even faster rate and ...view middle of the document...

Gravity according to Isaac Newton states that when objects are dropped, they must at some point in time fall (to the ground). I also got the measurements formulas for the force of gravity in comparison to weight and distance. Newton’s law of universal gravitation was also put into perspective. It also gives understanding as to why and how the moon wouldn’t fall down to earth because of the force holding it in place (gravity). Formulas for measuring force, mass and gravity are also discussed.
Gravity and motion are very vital in how things move around and the direction of travels. Also the impacts that are brought upon them as well as the force they impact onto other objects or forms of matter around them. There is also the relationship between the “Big G” and the “little g” as they relay universal constant and gravitation and the earth’s gravitational acceleration.

Lab Report
Using Gravitational Force as a Measurement Tool

Answer the following questions about the results of this activity. Record your answers in the boxes.
Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer!

Activity 1
Record your data from Activity 1 in the boxes below. Enter the data for the sample you used in each trial (5000 rpm, 10000 rpm, etc…) in the appropriate columns and the corresponding g-force, number of layers, and position of layers position results.

You will need to use the following formula to assist with your laboratory report:
* G-force =0 00001118 x radius of centrifuge arm x (rpm)2
* The radius of the centrifuge arm for this instrument is 10 cm.

Speed | 5000 rpm | 10000 rpm | 15000 rpm | 20000 rpm |
G-force | 2795 | 11180 | 251550 | 447200 |
Number of Layers | 5 | 9 | 10 | 6 |
Position of Layers | | | | |
1. Explain what happens to the G-force as the speed of the centrifuge increases.The soil levels tend to increase and thin out

The soil levels tend to increase and thin out

2. Which is likely the best speed to separate the components of this soil sample? Why?15000rpms because the G-force is greater and separation is much faster and highly distinguishable at this time

15000rpms because the G-force is greater and separation is much faster and highly distinguishable at this time

3. Describe in which layers you are likely to find the organic matter, gravel, sand, silt, and clay at the following speeds: a. 5000 rpm b. 15000 rpmAt the bottom layer since those are heavier and have a tendency to sink or fall at the bottom

At the bottom layer since those are heavier and have a tendency to sink or fall at the bottom


Activity 2
Record your data from Activity 2 in the boxes below. Enter the data for the sample you used in each trial (0.5, 1.5, 2.0, and 2.5 grams/ liter cesium chloride) in the appropriate columns with the corresponding g-force, number of layers, and position of layers results.

Cesium Chloridegrams/liter | 0.5 |...

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