The Physical Properties of Water - Assignment Example

Section/# With regards to some of the most pertinent information that was learned through the reading for this chapter, this student found the information with regards to the regulatory nature that the oceans play on the long term climate patterns as well as the physical properties of water as a transfer of sound and light to be of special interest. Firstly, with regards to the regulatory nature that the Earth’s oceans play, it is oftentimes alluded that global warming and/or solar flares are having what can only be described as a type of very immediate effect on global weather patterns. Although this is partly the case, the true nature of the way in which the Earth’s oceans help to slow and regulate extremes in global temperature/weather fluctuations means that it can be many years or decades before trends themselves will be adequately reflected within the Earth’s environment and ocean temperatures. This of course is not a reason to disregard the degree to which human interaction with the environment is causing a level of harm; rather, it is meant as an explanation for why many of the trends that we currently witness today have taken many years and or decades to come to fruition. Similarly, the information that was contained within the chapter with regards to how light and sound interact with liquid water and seawater helps to explain a great deal concerning biological organisms that live within the world’s oceans and how the different depths of seawater interrelate to the differing life forms that are found within them. According to the principal of wave refraction, when light from the atmosphere enters a medium of greater density at an oblique angle its ____. Answer a. velocity slows down and angle changes b. velocity remains the same but angle changes c. velocity slows down but angle remains the same d. velocity speeds up but angle remains the same 1 points Question 2 1. As you remove heat from a given mass of water, its temperature ____. Answer a. stays the same b. decreases c. there is not enough information given to answer the question d. increases 1 points Question 3 1. At approximately what ocean depth do sound waves reach their minimum velocity? Answer a. 1,000 meters b. 4,000 meters c. 2,000 meters d. 3,000 meters 1 points Question 4 1. H2O is most dense at ____. Answer a. 0 degrees Celsius b. 4 degrees Celsius c. Absolute zero d. 212 degrees Fahrenheit 1 points Question 5 1. Heat capacity is measured in what units? Answer a. Fahrenheit or Celsius b. calories per unit mass c. Kilowatts d. degrees per litre 1 points Question 6 1. The pycnocline is the name for a zone in the upper part of the ocean in which ____ changes rapidly with a corresponding change in depth. Answer a. Viscosity b. Density c. Visibility d. Temperature 1 points Question 7 1. The underwater "sofar channel" propagates sound efficiently due to ____. Answer a. U.S. Navy intervention b. high reflectivity c. changes in depth d. high refractivity 1 points Question 8 1. A measure of the heat required to raise the temperature of 1 gram (0.035 ounce) of water by 1C (1.8F) is ____. Answer a. calorie b. temperature capacity c. heat capacity d. heat 1 points Question 9 1. Ice is ____. Answer a. less dense than liquid water b. more dense than liquid water c. cant tell from the given information d. the same dense as liquid water 1 points Question 10 1. Seawater has ____. Answer a. a slightly lower boiling point, and a slightly higher freezing point than fresh water b. the random boiling point and freezing point; therefore, it cant be measured c. the same boiling point and freezing point as fresh water d. a slightly higher boiling point, and a slightly lower freezing point than fresh water 1 points Question 11 1. The latent heat of fusion is the heat removed from a liquid during freezing (or added during thawing) that produces ____. Answer a. a change of state but not a change in temperature b. a change in temperature but not a change of state c. a change in temperature but not a change of state and density d. a change of density and a change in temperature 1 points Question 12 1. Seawaters density decreases with ____. Answer a. decreasing salinity, decreasing pressure, and increasing temperature b. increasing, salinity, pressure, and temperature c. increasing salinity, increasing pressure, and decreasing temperature d. decreasing salinity, pressure, and temperature 1 points Question 13 1. The deep zone lies below the pycnocline at depths below about 1,000 meters in the mid-latitudes (40S to 40N). This deep zone contains about ____% of all ocean water. Answer a. 50 b. 60 c. 80 d. 70 1 points Question 14 1. The thin film of naturally lit water at the top of the ocean surface is called the ____. Answer a. photic zone b. thermocline c. aphotic zone d. pycnocline 1 points Question 15 1. Intensities being equal, which color of light moves farthest through seawater. Answer a. blue b. green c. green d. red 1 points Question 16 1. The speed of sound is ____. Answer a. random; therefore, it can not be measured b. faster in water than in air c. slower in water than in air d. the same in water and air 1 points Question 17 1. Hydrogen bonds greatly influence properties of water by allowing individual water molecules to stick to each other, a property called cohesion. Answer True False 1 points Question 18 1. Heat is a synonymous concept to temperature. Answer True False 1 points Question 19 1. Sound increases in velocity as it enters water from the atmosphere, while light decreases in velocity as it passes into water. Answer True False This assignment is intended to help you begin thinking quantitatively. It will require some basic calculations. Do your calculations offline and select the multiple choice answer that matches or is close to the answer you calculated 1. How many Calories (note the capital letter) are required to raise the temperature of a can of diet cola (12 fluid oz) from refrigerator temperature to body temperature. Assume that the refrigerator temperature is 41F. Answer 19.7 19745 10969.6 11 .0 3 points Question 2 1. If you wanted to burn an extra 100 Calories per day, approximately how many 12 oz glasses of refrigerated water would you need to drink? Answer 1 5 9 100 3 points Question 3 1. From highest to lowest rank the following three processes in the correct order of how much energy they require. Assume that the thawing ice is at 0oC, and the vaporizing water is at 100oC. Answer melting 1 quart of ice, raising the temperature of 1 quart of water from 0-100oC, vaporizing 1 quart of water. vaporizing 1 quart of water, raising the temperature of 1 quart of water from 0-100oC, melting 1 quart of ice vaporizing 1 quart of water, melting 1 quart of ice, raising the temperature of 1 quart of water from 0-100oC 4 points Save and Submit Links to Test Questions and Answers Read question 1 Read answers for question 1 Read question 2 Read answers for question 2 Read question 3 Read answers for question 3 Bottom of Form Read More