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Unit 3 Physical Science, Gas Laws
Test Description: Gas laws
Instructions: Answer all questions to get your test result.
1) Which statement best describes air pressure at high altitudes?
A
Air pressure decreases as altitude increases.
B
Air pressure increases as altitude increases.
C
Air pressure does not change as altitude increases.
D
It is impossible to accurately measure air pressure at high altitudes.
2) If volume decreases in a gas, what happens to pressure?
A
Pressure stays the same.
B
Pressure increases.
C
Pressure increases and then decreases.
D
Pressure decreases.
3) If temperature increases, what happens to pressure?
A
Pressure decreases.
B
None of the above
C
Pressure increases.
D
Pressure stays the same.
4) Which of the following best describes the gas in a scuba tank?
A
None of the above
B
The molecules of gas are moving slowly.
C
The gas barely fills its container.
D
The gas is compressed.
5) If you place a balloon in the freezer, it will __________.
A
stay the same size because there is no relationship between volume and temperature
B
expand because volume is inversely proportional to temperature
C
deflate because volume is inversely proportional to temperature
D
deflate because volume is directly proportional to temperature
6) What happens when you compress a gas?
A
You increase its density.
B
You decrease its temperature.
C
You decrease its pressure.
D
You increase its volume.
7) In the Gas Laws lab, you changed temperature to change __________.
A
gravity and volume
B
weight and volume
C
volume and pressure
D
mass and volume
8) Which of the following is the most accurate statement concerning volume and pressure of a gas?
A
Volume of a gas is always greater than pressure of that gas in any container.
B
Volume of a gas is equal to pressure of that gas in any container.
C
Volume of a gas is directly proportional to pressure of that gas in any container.
D
Volume of a gas is inversely proportional to pressure of that gas in any container.
9) What is the temperature of a gas in which the atoms are moving very, very slowly?
A
None of the above
B
cold
C
hot
D
room temperature
10) Which of the following measures atmospheric pressure?
A
None of the above
B
a barometer
C
a ballast tank
D
a thermometer
*select an answer for all questions
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