Thermal Energy

Warm air rises to the top of a room. When a cold air mass moves in, the warm air rises over it causing a thunderstorm. Warm ocean currents are at the surface, like the Gulf Stream, while cold water currents flow along the bottom. These are all examples of the way heat moves by:

• radiation

• conduction

• absorption

• convection

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

When Ice melts heat energy is:

• B. taken in, increasing the thermal energy of the ice

• C. Neither taken in or released; it is in a steady state

• A. released, lowering the thermal energy of the ice

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Your feet feel hot from the sand at the beach. This is an example of heat moving into your feet.

• Conduction

• Convection

• Radiation

Thermal energy is the TOTAL amount of energy of the atoms and molecules, so a large cool object could have more thermal energy than a smaller hot object if the mass is big enough.

• True

• False

Tags

NGSS.MS-PS3-4

Why does water in a glass of ice water get cold?

• The cold comes out of the ice into the water.

• The ice takes in heat from the water as it melts and the water loses thermal energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

An object or substance in which heat (or electricity) can move through easily is called a good:

• insulator

• conductor

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Heat can be transferred in three ways. Which of the following kinds of heat transfer does NOT require a physical medium (a "medium" is matter) of some kind?

• D. all require a medium

• C. radiation

• B. convection

• E. none require a medium

• A. conduction

Heat can travel through a solid by each molecule vibrating to the one next to it. Heat can also travel from an object to your hand if you touch it. The way heat moves by touching is________________ .

• Radiation

• Absorption

• Convection

• Conduction

Thermal energy is the total amount of kinetic energy of matter or an object. It depends on the kinetic energy of the "particles" that make up the matter and the mass of the object. That is how an iceberg can have More thermal energy than a cup of hot coffee. The coffee may have a higher temperature, but the iceberg has so much more mass, it has more THERMAL energy.

• True

• False

Tags

NGSS.MS-PS1-4

The sand at the beach that burned your feet got hot in the first place by_____________ from the sun

• Radiation

• Convection

• Conduction

Tags

NGSS.MS-PS1-4