Beginner's Guide
to Rockets
Temperature and Kinetic Energy
Answers:
 What is the name
of the branch of physics that studies the temperature of objects and
the flow of heat between objects of different temperatures?
Thermodynamics
 Temperature
is a scalar quantity with magnitude, but no direction. Can you think
of something else we commonly measure that is also a scalar quantity?
Distance
 A gas is composed
of a large number of molecules that are in __________, __________ motion.
Constant, Random
 When
the temperature is high, the molecules move _____________.
Faster
 What
is the name of the device used to measure temperature?
Thermometer
 Temperature
is really a measure of the average kinetic energy of a gas. What is
the formula used for determining kinetic energy?
KE
= mv^{2} / 2
 Convert these two
numbers to scientific notation: 456.2332 and 0.00002349.
4.562332 x 10^{2} and 2.349
x 10^{5}^{
}^{
}
 Find the mass of
one atomic unit of each of the following five gases: Hydrogen, Helium,
Oxygen, Nitrogen, and Neon.
Hydrogen 1.6731 x 10^{27}
kg

Nitrogen  2.3251 x 10^{26}
kg

Helium  6.6443 x 10^{27}
kg

Neon  3.3497 x 10^{26}
kg

Oxygen  2.6559 x 10^{26}
kg


 Assume the average
velocity of oxygen at room temperature is 480 meters per second. Using
the kinetic energy formula along with your answer from question 8, calculate
the kinetic energy for oxygen.
3.0596 x 10^{21
}^{
}
 Assume the average
velocity of nitrogen at room temperature is 510 meters per second. Using
the kinetic energy formula along with your answer from question 8, calculate
the kinetic energy for nitrogen.
3.0238 x 10^{21
}
 Assume the average
velocity of hydrogen at room temperature is 390 meters per second. Using
the kinetic energy formula along with your answer from question 8, calculate
the kinetic energy for hydrogen.
1.2724 x 10^{22
}
 Write a sentence
or two summarizing what you learned from this activity.
Answers will vary depending on age and ability
of students.
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