Thermal Physics

An adiabatic process occurs at constant

• Temperature

• pressure

• heat

• none of these

The SI unit for measuring heat is the 

• pascal
• newton
• Joule
• calorie

Thermodynamics is the study of what?

• The transfer of energy
• The creation of energy
• The speed of reactions 
• The affect of heat on the speed of a reaction 

Tags

NGSS.HS-PS3-4

What is the efficiency of the machine if the input is 263 J and a the useful output is 142 J?

• 6.26%

• 54%

• 100%

• 260%

Ratio to work out to work in

• Efficiency
• Law of Conservation of Energy
• Transformation
• Lumens

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the equation for the first law of thermodynamics?

• U=Q+W
• U=Q-W
• U=-Q+W
• U+Q+W=0

What is constant in an isothermal process?

• PV
• P/T
• V/T
• Heat

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder
• Colder to hotter
• Hotter to hotter
• Colder to colder

Tags

NGSS.HS-PS3-4

A measure of the amount of disorder or randomness in a system.

• Entropy

• Exothermic

• First Law of Thermodynamics

• Heat engine

A system that converts heat energy into mechanical work.

• Heat engine

• Heat pump

• Isobaric

• Isolated system

Tags

NGSS.HS-PS3-3