Thermodynamics and Using Heat

Thermal energy can move from a cooler object to a warmer object when

• the warmer object is larger.

• the cooler object has more thermal energy.

• energy is transferred by radiation.

• work is done on the system.

Tags

NGSS.HS-PS3-4

All metals are good thermal insulators.

• True

• False

Tags

NGSS.HS-PS3-4

Which of these three processes DOES NOT allow for the change of thermodynamic properties according to the first law?

• Isobaric

• Isovolumetric

• Isothermal

Tags

NGSS.HS-PS3-2

Because it leads to an increase in entropy heat spontaneously flows

• from low temperature to high temperature.

• over the river and through the woods.

• from high temperature to low temperature.

• from a refrigerator into your food.

Tags

NGSS.HS-PS3-4

Only about one third of the energy in gasoline is converted to work in an internal combustion engine. The rest of the chemical energy is

• lost as unused mechanical energy.

• destroyed by the engine.

• converted to potential energy.

• discharged as waste heat.

Tags

NGSS.HS-PS3-4

How do air conditioners reverse the normal flow of heat?

• Moving cool air from outside to inside the house.

• Separating warm atoms from cool atoms.

• Vaporizing and condensing a refrigerant.

• Blowing the warm air away with a fan.

Tags

NGSS.HS-PS3-4

Forced air heating systems are often used to heat many buildings from a central location

• True

• False

Tags

NGSS.MS-PS1-4

Which one of these is not a form of heating system for a building?

• Microwave heating.

• Forced-air heating.

• Steam heating.

• Electric baseboard heating.

Which of these is an example of an external combustion engine?

• Car Engine

• Steam Engine

• Airplane Engine

• Gas Turbine

What form of energy transfer requires the motion of particles of a fluid?

• Convection

• Conduction

• Radiation

• Insulation

Tags

NGSS.HS-ESS2-3