01.01: Water Cycle Data and Observations Table Trial Number Number of Pumps Observations 1 5 Very faint cloud 10 Starting to see a more visible cloud 15 I see a good size cloud now 2 5 A decent cloud 10 I know see the cloud more 15 A awesome cloud Analysis: Reflection Questions 1. Which of your two trials had the best cloud formation? In your own words‚ explain why. I believe the one with the rubbing alcohol‚ because you could see it faster and clearer.
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to observe the details of the world in order to understand it. For a very long time‚ the only features of the weather that could be measured were wind direction and rainfall. The thermometer was invented around A.D. 1600‚ and the barometer‚ which measures atmospheric pressure‚ came a few years later. Over the next 200 years‚ devices were developed for measuring wind speed‚ humidity‚ and other important qualities of the atmosphere. Scientists used these instruments to record
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This analysis concluded that the unknown was ethylene glycol. This was discovered as the gas was heated to 90 degrees Celsius causing the liquid unknown to evaporate into a gas while recording the mass‚ volume‚ temperature‚ and volume. This provided the mass of 1.6 grams which was found by subtracting the mass of the Erlenmeyer flask‚ aluminum cover‚ and rubber band from the mass of the Erlenmeyer flask‚ aluminum cover and rubber band and unknown gas after heating. Then the temperature of the gas
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monometer was already pre-set up before the laboratory section started. Each group went up one by one with the aid of Professor Nelson to the collect the various measurements. Each pair of partners had to read the left and right side of the mercury pressures in the barometers and read the temperature at which the system was. Each pair of partners collected this data‚ which resulted in eleven different observations performed. The data numbers slowly increased between the pressure and temperature as the experiment
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energy is transferred between particles as they collide Pressure The force exerted per unit of area Formula: pressure/force area Measured by barometer A vacuum is empty space‚ with no particles or pressure. Atmospheric pressure is the collision air particles with objects Units of pressure Kilopascals (kPa) Atmospheres (atm) Millimeters of mercury (mmHg) Temperature What happens to the motion of gas molecules if the gas is heated? As a gas is heated‚ the molecules move faster and the temperature
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last night’s television weather broadcast was 29.92. Explain how this was measured and give the units. Would this be considered an unusually large or low pressure value? a. 29.92 is the standard sea level pressure‚ identified by inches of Mercury in a barometer‚ and identifies the pressure over an area using the millibar. This would not be considered a large/low pressure measurement. 2. If the earth did not rotate‚ how would you expect winds to blow with respect to high and low pressure centers
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Chapter 10: Physical Characteristics of Gases Section 10-1 The Kinetic-Molecular Theory of Matter Prerequisites The kinetic-molecular theory is based on the idea that particles of matter are always in motion. The theory can be used to explain the properties of solids‚ liquids‚ and gases in terms of the energy of particles and the forces that act between them. ideal gas: an imaginary gas that perfectly fits all the assumption of the kinetic-molecular theory. Kinetic-Molecular Theory
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PRESSURE MEASUREMENT AND CALIBRATION YEDĐTEPE UNIVERSITY DEPARTMENT OF MECHANICAL ENGINEERING 1 YEDITEPE UNIVERSITY ENGINEERING FACULTY MECHANICAL ENGINEERING LABORATORY Pressure Measurement and Calibration 1. Objective: To convert an arbitrary scale of pressure sensor output into engineering units. To calibrate a semiconductor pressure sensor. 2. Equipment: The equipment comprises a Dead-weight Pressure Calibrator (DPC)‚ Bourdon gauge and diaphragm-type pressure sensor. The
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GEOL 1402 Hour Test 3: Review Guide Chapter 18: Air Pressure and Wind 1. Know standard air pressure at sea level in pounds per square inch and inches of mercury. (1 question) 2. Know who invented the mercurial barometer. (1 question) 3. Study the instruments used to measure air pressure. (1 question) 4. Review the role of pressure gradients in creating wind. (3 questions) 5. Know how the spacing of isobars on a weather map relates to wind speeds. (2 questions) 6. Know that a “southwest wind” blows
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w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om 0625/11 May/June 2011 45 minutes PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB recommended) *3129497903* READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Write your name‚ Centre number
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