M0fA. Feeling pressured?... Air pressure is all around us. Air pressure is the force exerted on you by the weight.

Slides:



Advertisements
Similar presentations
Made especially for you…
Advertisements

Book I, Chapter 1 “The Atmosphere”
Under Pressure. What is Pressure?  Pressure (P) is defined as the amount of force (F) applied per unit area (A) or as the ratio of force to area: P=
By Mrs. S. Deringer AIR I knew I shouldn’t have eaten all that air.
What Do These Things Have In Common?
Comparing and Contrasting Air Sea Level vs. The Top of a Mountain.
Heat Transfer, Water Cycle, Air Pressure, Masses and Fronts By: Brianna Shields November 14, 2005 By: Brianna Shields November 14, 2005.
Air Pressure and Hot Air Balloons! Partnership for Environmental Education and Rural Health peer.tamu.edu.
Air Pressure Can you feel it?.
Chapter 3: Forces in Fluids
Air Pressure 2 nd Factor that Affects Weather What is Air Pressure? The weight of the air pushing down on us and everything else around us. Happens because.
Chapter 7 Air Pressure Chapter 7 Section 2.
Air Pressure and Hot Air Balloons!. Hot Air Balloons!!! Have you ever seen a hot air balloon? What makes it fly through the air? Air pressure is a big.
Warm Up: Write 10 things you notice about the weather map. yc.kidmeteor/kid-meteorologist/
Tuesday, November 4.  1. How many layers in the atmosphere are there? What are the layers?  2. When you go swimming, where do you feel the most pressure,
Air Pressure and Wind. What is air pressure? The weight of the atmosphere as it pushes down on Earth’s surface. It is exerted equally in all directions.
Air Pressure.
Chapter 13 States of Matter.
Chapter 12 Section 2 AIR Pressure.
How and why Gas Exchange happens: Location: The alveoli Method: Diffusion.
Gas, Pressure, and Wind. Gases Recap - Nitrogen (78%), Oxygen (21%), Other and H2O (1%). Gases, like matter, have mass and are affected by gravity The.
Air Pressure.
Air Pressure Chapter 1, Section 2, p Properties of Air Air has mass – Air is made of atoms & molecules – Atoms & molecules have mass How can you.
Notes 11-1 Pressure. What Is Pressure? The amount of pressure you exert depends on the area over which you exert a force.
Under Pressure!!. Feeling Pressure? Air pressure is the force exerted on you by the weight of tiny particles of air. How much pressure are you under?
Air Pressure. Elbow Chat What is weather? Describe the weather today.
Atmosphere. Blanket of gases around Earth It protects us from harmful rays. It is always changing due to people breathing, trees, and cars.
Air Pressure & Layers of the Atmosphere
Forces in Fluids Chapter 11 Why don’t you sink into the snow when you wear snow shoes? Pressure` Pressure is the force pushing on a surface.
Weather Notes. What is an air mass? An air mass is a huge body of air with uniform temperature, pressure, and humidity (moisture).
Jeopardy Welcome to… Welcome to Jeopardy. Remember to wait to be called on. Use your knowledge to answer the questions. Good Luck!
Air Pressure How to measure the air around us.. Air pressure is the force exerted on you by the weight of tiny particles of air (air molecules). Although.
Air Pressure Air has mass, density, and pressure. Density Density- amount of mass in a given volume of air D= Mass Volume More molecules in a given volume.
 If man goes up to a height of 10,000 feet above sea level, he feels decrease of both oxygen and atmospheric pressure. Effects of atmospheric pressure.
THE BAROMETER.  Definition:  It is an instrument for measuring atmospheric pressure.  It is used especially by meteorologists in weather forecasting.
Air Pressure Although air molecules are invisible, they still have weight and take up space. Air pressure is the force applied by air to any surface in.
Chapter 13 Forces in Fluids It’s a bit of a review…
Properties of Air Test Review. Name that Property! Q: Air is less dense than water because the molecules are more spread out. A: 1.It is a mixture of.
Pressure. What is Pressure? Pressure refers to a force exerted on a surface Due to the force of gravity, your feet exert a force on the ground in the.
Air Pressure Notes. Properties of Air Oxygen (O 2 ) Nitrogen (N 2 ) CO 2, H 2 O, and others.
Starter…Name these clouds… A B C DE F G H I. Answers… A. Cirrus B. Cirrocumulus C. Cirrostratus D. Altocumulus E. Altostratus F. Cumulonimbus G. Stratocumulus.
Air Pressure. Even thought air is invisible, it is made of molecules: 78% Nitrogen 21% Oxygen 1% Carbon Dioxide, Water vapor, Argon, and other gases.
Air Pressure.
Air Pressure.
Chapter 13 Forces in Fluids
Air Pressure.
AIR PRESSURE.
ATMOSPHERIC PRESSURE.
Forces in Fluids Pressure.
Air Pressure Notes.
Air Pressure & Density in the Atmosphere
Do Now’s Weather Unit.
Air Pressure Notes.
Air Pressure Notes.
Air Pressure.
Air Pressure.
Do Now’s Weather Unit.
Air Pressure Notes.
Air Pressure.
Do Now’s Weather Unit.
WEATHER Unit 1b.
Chapter 11 Section 1 – pg 416 Pressure.
Do Now’s Weather Unit.
Air Pressure and Hot Air Balloons!
Homework Quiz Increasing which variable would decrease the pressure of a contained gas? Temperature b) number of particles Boiling point d) volume Boyle’s.
Air Pressure.
Do Now’s Weather Unit.
Do Now’s Weather Unit.
Do Now’s Weather Unit.
Do Now’s Weather Unit.
Presentation transcript:

M0fA

Feeling pressured?... Air pressure is all around us. Air pressure is the force exerted on you by the weight of tiny particles of air known as air molecules. Although these molecules are invisible they still have weight and take up space. Why doesn't all that pressure squash you? Remember that you have air inside your body too, that air balances out the pressure outside so you stay nice and firm and not squishy.

Weather forecasters measure air pressure with a barometer. Barometers are used to measure the current air pressure.

Air pressure can tell us about what kind of weather to expect as well. If a high pressure system is on its way, often you can expect cooler temperatures and clear skies. If a low pressure system is coming, then look for warmer weather, storms and rain. /canada/alberta/edmonton

A high pressure system is represented as a big, blue H. A low pressure system is represented as a big, red L.

What Happens if Air Pressure Changes? Why do my ears pop? If you've ever been to the top of a tall mountain, you may have noticed that your ears pop and you need to breathe more often than when you're at sea level. As the number of molecules of air around you decreases, the air pressure decreases. This causes your ears to pop in order to balance the pressure between the outside and inside of your ear. Since you are breathing fewer molecules of oxygen, you need to breathe faster to bring the few molecules there are into your lungs to make up for the deficit.