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

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

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

What is the process by which heat is transferred through direct contact?

• Convection

• Conduction

• Radiation

• Insulation

Which of these is not a good conductor of heat?

• Metal

• Wood

• Iron

• Copper

Tags

NGSS.HS-PS3-4

The term for the process in which heat is transferred from a hotter object to a cooler one is Conduction.

• True

• False

Tags

NGSS.HS-PS3-4

According to the second law of thermodynamics, in an isolated system, entropy

• remains constant.

• decreases over time.

• increases over time.

• is not affected by time.

Tags

NGSS.HS-PS3-4