CPE Book 3 Unit 2

Scientists believe they are creating a ___________ close to zero degree Kelvin.

• power

• temperature

• energy

In a temperature of absolute zero, a system contains no ____________.

• internal energy

• internal combustion

• internal operation

The First Law of Thermodynamics deals with the

• the fact that attaining absolute zero is impossible

• entropy

• conservation of energy

The Second Law of Thermodynamics deals with

• tropical science

• entropy

• anthropology

The Third Law of Thermodynamics states that

• attaining absolute zero is impossible

• attaining absolute zero is possible

• attaining absolute zero is a work in progress

There are __________ Laws of Thermodynamics

• four

• three

• seven

Hot and cold systems that interact will reach _____________

• absolute zero

• equilibrium

• Kelvin

Used to measure of the kinetic energy in matter

• Metaphysics

• Gasoline

• Kelvin

Why is it important to understand very low temperatures?

• Because some materials behave differently according to the temperature.

• Because space travel will soon be extinct

• Because of agricultural needs of humans

Why must engineers understand the Laws of Thermodynamics?

• Because it is an interesting topic

• Because a very large number of machines rely on these laws to function

• Because of thermostats