# Ch. 14

Quiz by Winston Schultz, updated more than 1 year ago
 Created by Winston Schultz about 5 years ago
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### Description

Gases, Atmospheric pressure, Boyle's Law, Buoyancy in air, Bernoulli's Principle, & Plasma.

## Resource summary

### Question 1

Question
Atmospheric pressure is caused by the
• weight of the atmosphere.
• temperature of the atmosphere.
• solar energy on the atmosphere.
• density of the atmosphere.

### Question 2

Question
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

### Question 3

Question
Marshmallows in a vacuum (no atmospheric pressure) become
• smaller.
• larger.
• a hollow shell.
• flat.
• none of the above

### Question 4

Question
When a gas in a container is squeezed to half its volume with no change in temperature, the gas pressure
• remains the same.
• doubles.
• halves.

### Question 5

Question
When a gas in a container is squeezed to half its volume, its density
• remains the same.
• halves.
• doubles.

### Question 6

Question
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
• none of the above

### Question 7

Question
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.
• none of the above

### Question 8

Question
Compared with air pressure on the outside, air pressure inside an inflated stretched balloon is
• greater.
• less.
• equal.

### Question 9

Question
As a high-altitude balloon rises higher into the atmosphere, it undergoes a decrease in
• volume.
• weight.
• mass.
• density.
• none of the above

### Question 10

Question
As a fluid gains speed, its internal pressure
• increases.
• decreases.
• remains unchanged

### Question 11

Question
An airplane flight best illustrates
• Archimede's Principle.
• Bernoulli's Principle.
• Boyle's Law.
• Pascal's Principle.

### Question 12

Question
When water is turned on in a shower, the shower curtain moves toward the water spray. This partly involves
• capillary action.
• pressure changes in moving fluids.
• surface tension.
• none of the above.

### Question 13

Question
Wind blowing over the top of a hill
• does not affect atmospheric pressure there.
• increases atmospheric pressure there.
• decreases atmospheric pressure there.

### Question 14

Question
The tarp covering on a trailer or truck puffs upward for fast-moving vehicles, which illustrates
• Archimede's Principle.
• the principle of continuity.
• Bernoulli's Principle.
• Pascals's Principle.

### Question 15

Question
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

### Question 16

Question
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.

### Question 17

Question
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

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