The Atmosphere
The energy that causes the molecules in Earth's atmosphere to move comes from this source.
What is the sun?
Fred has two Magdeburg hemispheres which he puts together and evacuates the air from. He then tries to pull them apart. He tries this at his home in Denver and again while vacationing at the beach in San Diego. The location where he must exert the most force to pull them apart is ....
What is San Diego?
Bob has a balloon filled with 1 liter of air at 1.5 atmospheres of pressure. He dives into a deep pool. The water is the same temperature as the air. At the bottom of the pool the balloon's volume shrinks to 0.5 liters. The pressure in the balloon will be this.
What is 3 atmospheres?
A balloon is floating stationary in the air at sea level. It is displacing 1 cubic meter of air. The buoyancy force acting on the balloon is this.
What is approximately 12.3 N?
As balloons descend through the atmosphere one characteristic increases and another decreases. Name them.
What are density increases and volume decreases?
At an altitude of 5.6 kilometers about this much of the Earth's atmosphere would be below you.
What is 50% or half?
Atmospheric pressure is caused by this.
What is the weight of the atmosphere?
A helium balloon is released and it rises until it has doubled in volume. If the density of the helium is 0.2 kg/cubic meter when the balloon is released, this will be its density after the volume has doubled.
What is 0.1 kg/cubic meter?
If you were to weigh yourself on the Earth and another planet with equal gravity but no atmosphere, your weights would compare in this way.
What is heavier on the planet with no atmosphere because of the lack of a buoyancy force?
The main difference between gases and plasmas is this.
What is plasmas can conduct electricity?
The atmosphere or Earth has been called an ocean of air. Compared to the oceans on Earth, the molecules composing the atmosphere behave differently in this way.
What is they are spaced further apart?
What is their density increases with depth?
What is The surface is less distinct?
The maximum height a column of mercury in a barometer can attain is this.
What is .76 meters or 76 centimeters?
As a weather balloon rises higher into the atmosphere its volume, mass, weight and density will change in this way.
What is volume increases, mass and weight do not change, and density decreases?
Rob the fireman opens the nozzle on his fire hose to send a stream of water onto a burning structure. As the stream of water accelerates upward, the internal pressure of the stream does this.
What is decreases?
If a diver holds their breath and dives deep under water, the deeper they go, the more difficult it becomes for them to rise to the surface because of this.
What is that their density is increasing?
A column of air 30 km tall with a cross section of 1 square meter will weigh this many Newtons.
What is 100,000 Newtons?
Two barometers are built that use water. One has a cross section of 1 square inch. The second has a cross section of 2 square inches. The water in the barometer with the larger cross section will rise this much higher than the water in the other.
What is "They rise to the same height"?
As a bubble of methane gas breaks free from the bottom of the ocean and rises to the surface, its weight, volume, mass and density change in this way.
What is weight and mass remain the same, volume increases and density decreases?
Both Bernoullie's principle and Archimedes principle can be illustrated by different methods of flight. Match the principles to the methods.
What are an airplane to Bernoullie's and a dirigible or balloon to Archimede's?
Compared to Earth's oceans, the atmosphere differs with respect to molecular spacing, density, and surface in this way.
What is the molecules are spaced more widely apart, the density varies with altitude while the ocean's density does so only minutely, and the surface of the atmosphere in much less distinct?
Jaxon sticks a suction cup to the window. The phenomenon causing the cup to stay on the window is this.
What is the weight of the atmosphere pushing on it?
A 5 ton block of steel and a 5 ton block of wood are weighed on scales. Taking the buoyancy force of the atmosphere into account, this one is more massive.
What is the block of wood?
A snorkeler uses a tube to breath while swimming under water. A tube more than about 3 feet long will not work for this reason.
What is that the pressure in the lungs becomes so great below that depth that air from the surface will not freely enter the higher pressure area?
Junior throws a curve ball that starts out traveling directly at the batter's head, but then breaks left and crosses over the plate. Looked at from above, the ball will have this rotation and these kind of streamlines on both sides of the ball.
What are counter-clockwise rotation and crowded streamlines on the opposite side from the batter, with less crowded streamlines on the batter's side?
In art class, George sculpts a reproduction of Carson that is the exact volume of the real Carson, but the sculpture, made of marble, weighs 500 pounds compared to Carson's 160 pounds. The buoyancy force of the atmosphere on the sculpture will be this compared to the force on the real Carson.
What is the same?