Thermal Energy Review

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Tags

NGSS.MS-ESS2-5

The baby chickens are kept warm from the heat lamps. This demonstrates what kind of heat transfer? 

• conduction
• convection
• radiation

The transfer of heat by currents through liquids of gases is called

• Perspiration
• Radiation
• Conduction
• Convection

Tags

NGSS.MS-ESS2-6

"Lava lamps" contain colored liquids. These liquids form globs that rise to the top due to

• conduction
• convection
• radiation

Tags

NGSS.MS-PS1-4

Near the ceiling of a room the air is warmer; the warm air rises because of

• conduction
• convection
• radiation

Tags

NGSS.MS-ESS2-6

A crayon placed on a dark driveway in bright sunlight melted into a colorful puddle. What caused the crayon to melt?

• Solar radiation heated the driveway and then heat transferred to the crayon by conduction.
• Solar radiation heated the driveway and then heat transferred to the crayon by radiation.
• Solar convection heated the driveway and then heat transferred to the crayon by radiation.
• Solar convection heated the driveway and then heat transferred to the crayon by conduction.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement is true?

• The quicker a molecule moves, the colder it is.
• The slower a molecule moves, the warmer it is.
• The quicker a molecule moves, the warmer it is
• The movement of a molecule doesn't affect its temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The picture shows heat transfer by

• Conduction
• Convection
• Radiation

Tags

NGSS.MS-PS3-3

Cold air sinks.  True or false? 

• true
• false

Tags

NGSS.MS-ESS2-5

This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:

• Conduction.
• Convection.
• Radiation.

Tags

NGSS.MS-PS1-4