Thermodynamics

Which best describes ENTROPY?

• Useful heat energy needed to drive an engine
• Heat that can be stored to be used at a later date
•   Random energy that escapes from the system
• A state of order in a physical system

Which state of H₂O  has the greatest entropy?

• Ice
• Water
• Vapor

The first law of thermodynamics is a restatement of the

• Zeroth law of thermodynamics
• law of heat addition
• principle of entropy
• conservation of energy

Which is an example of decreasing entropy in a closed system?

• Boiling water

• Freezing water

• Cells in a body coming together

• Ice melting

A(n) _____________ is a device for measuring temperature.

• thermometer
• barometer
• anemometer
• psychrometer 

Temperature is a measure of the...

• total energy in a substance
• total kinetic energy in a substance
• average potential energy in a substance
• average kinetic energy of molecules in a substance

A slower particle has a lower energy than an identical, faster particle.

• True
• False

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

Heat transfer by conduction occurs when...

• particles bump into each other
• large numbers of atoms move from place to place
• atoms give off heat in the form of electromagnetic waves
• electromagnetic waves travel from place to place through a vacuum

Heat travels from the sun to the earth by the process of...

• conduction
• convection
• radiation
• insulation