Thermodynamics

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

• Boiling water

• Freezing water

• Cells in a body coming together

• Ice melting

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

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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

• conduction

• convection

• radiation

• insulation

Conduction

• The transfer of thermal energy through solids

• The transfer of thermal energy through liquids and gases

• The transfer of thermal energy as electromagnetic waves

Convection

• The transfer of thermal energy through liquids and gases

• The transfer of thermal energy through solids

• The transfer of thermal energy as electromagnetic waves

Radiation

• The transfer of thermal energy as electromagnetic waves

• The transfer of thermal energy through solids

• The transfer of thermal energy through liquids and gases

In which of the following systems is entropy increasing?

• Putting together a puzzle

• Putting books on a shelf

• Breaking a plate

• Filling a jar of salt

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction

• convection

• radiation

• Insolation 

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What are examples that show heat moving from cold to hot?

• refrigerator

• freezer

• it's impossible

• the refrigerator and freezer

Which of the following is an example of convection?

• A hair dryer is drying up your hair.

• When the AC or heater changes the temperature.

• When a car engine turns hot after being turned on.

• When you are making soup and the water is rising and lowering.

Tags

NGSS.MS-PS3-3