Atmospheric pressure is caused by the
weight of the atmosphere.
temperature of the atmosphere.
solar energy on the atmosphere.
density of the atmosphere.
In drinking soda or water through a straw, we make use of
Bernoulli's principle.
capillary action.
atmospheric pressure.
surface tension.
none of the above
Marshmallows in a vacuum (no atmospheric pressure) become
smaller.
larger.
a hollow shell.
flat.
When a gas in a container is squeezed to half its volume with no change in temperature, the gas pressure
remains the same.
doubles.
quadruples.
halves.
When a gas in a container is squeezed to half its volume, its density
When boarding an airplane you bring a bag of chips. While in flight the bag puffs up, because
suction is occurring.
air pressure is affected by the Bernoulli principle.
air pressure in the air-tight bag is greater than cabin air pressure.
all the above
A bubble of air released from the bottom of a lake
becomes smaller as it rises.
alternately expands and contracts as it rises.
rises to the top at constant volume.
becomes larger as it rises.
Compared with air pressure on the outside, air pressure inside an inflated stretched balloon is
greater.
less.
equal.
need more information
As a high-altitude balloon rises higher into the atmosphere, it undergoes a decrease in
volume.
weight.
mass.
density.
As a fluid gains speed, its internal pressure
increases.
decreases.
remains unchanged
An airplane flight best illustrates
Archimede's Principle.
Bernoulli's Principle.
Boyle's Law.
Pascal's Principle.
When water is turned on in a shower, the shower curtain moves toward the water spray. This partly involves
pressure changes in moving fluids.
none of the above.
Wind blowing over the top of a hill
does not affect atmospheric pressure there.
increases atmospheric pressure there.
decreases atmospheric pressure there.
The tarp covering on a trailer or truck puffs upward for fast-moving vehicles, which illustrates
the principle of continuity.
Pascals's Principle.
A spinning tossed baseball veers off course in the direction of
non-crowded streamlines
reduced air pressure on the ball
increased air pressure on the ball
The Bernoulli's effect causes fast-moving vans on the highway to be drawn together when
they experience lift.
air speeds up in passing between them.
air between them stagnates.
all of the above.
When you blow air between a pair of closely-spaced pin-pong balls suspended by strings, the balls swing
toward each other
away from the stream ,but not necessarily away from each other.
away from each other
