'Aneroid barometer' presentation slideshows

Chapter 20 Gasses

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101 Pressure

101 Pressure. What is atmospheric pressure? Where measured? Why important?. When T> 0K, atoms and molecules are moving. When they hit an object they provide a small push and apply a small force to the object. Convenient to talk in terms of pressure rather than forces. Pressure = force

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UNIT 2 - MECHANICS

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Hatchet Vocabulary

Hatchet Vocabulary. Chapters 1-3. Cessna. a type of plane. consuming. to eat to make use of. drone. a male bee with no stinger that mates with the queen bee to talk dully, to buzz or murmur like a bee. slewed. to turn something on an axis rotate. vibration.

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Chapter 22 Section 1 Review Page 554 (1-4)

Chapter 22 Section 1 Review Page 554 (1-4). 1. Describe the composition of dry air at sea level. Nitrogen = 78% Oxygen = 21% Argon = 0.9% Other gases (like CO 2 < 0.1%. Gases in the Atmosphere. 2. Identify five main components of the atmosphere. Nitrogen Oxygen Water Vapor

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Day 41

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Pressure Section 1

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The Barometer

The Barometer. By: Paul Karkenny. Timeline of the Barometer. 1643- Mercury barometer invented. 1843- Aneroid barometer is invented. 1648- Pascal performs his famous experiment. Evangelista Torricelli. Born in 1608 German Physicist Invented first barometer Died in 1647.

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Barometric Pressure

Barometric Pressure. Air is made up of molecules of gases (nitrogen, oxygen, argon, water vapor, etc.). Because these gases have mass, air is pulled toward the center of Earth by gravity. Barometric pressure is the weight (force) of the air pushing on a unit of surface area of the ground.

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