
Mapping Mars and Understanding Gases Through Phase Changes
Interactive Video
•
Physics, Science, Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What reference point did the Mariner 9 mission use to map Martian altitudes?
The highest mountain on Mars
The average surface temperature
The atmospheric pressure at the triple point of water
The distance from the sun
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT an assumption of the kinetic theory of gases?
Gas molecules have negligible volume compared to the container
Molecules only interact during collisions
Collisions are perfectly elastic
Gas molecules are always at rest
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the root mean square speed of gas molecules calculated?
By averaging the velocities of all molecules
By taking the square root of the average squared velocities
By measuring the speed of the fastest molecule
By dividing the total kinetic energy by the number of molecules
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to real gases at high pressures and low temperatures?
They deviate from ideal behavior
They become more gaseous
They expand indefinitely
They behave more ideally
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the critical point on a phase diagram?
The point where a substance can exist in all three phases
The pressure at which a gas condenses
The maximum temperature and pressure where a liquid can exist
The temperature at which a solid melts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the triple point of water significant in defining the Kelvin scale?
It is the temperature at which water boils
It is the average temperature of Earth's oceans
It is the point where water exists in all three phases
It is the highest temperature water can reach
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason for using the triple point of water as a reference on Mars?
To calculate the distance from Earth
To determine where liquid water could exist
To find the highest point on Mars
To measure the temperature of Mars
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