Thermal Energy

What kind of heat transfer happens when the sun is heating your body?

• Conduction

• Radiation

• Convection

• Density

The diagram to the right shows a solid iron bar that is being heated in a flame. The primary method of heat transfer in the solid iron bar is—

• convection

• conduction

• absorption

• radiation

How do molecules at warm temperatures differ from molecules at cool temperatures?

• a.  At warm temperatures, molecules move around more

• b.  At warm temperatures, molecules grow in siz

• c.  At warm temperatures, molecules exchange electrons more easil

• d.  At warm temperatures, molecules combine with each other more easil

Tags

NGSS.MS-PS1-4

Which material is the best conductor of heat?

• glass

• styrofoam

• metal

• wood

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Heat will always transfer from the ___________ object to the ________ object.

• The hottest object to the coolest object.

• The coolest object to the hottest object.

• The solid object to the liquid object.

• The liquid object to the solid object.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

When the 2nd story of a house is warmer than the 1st floor of a house is heat transfer through 

• conduction

• convection

• radiation

• thermal equilibrium

Tags

NGSS.MS-PS1-4

When holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?

• From the cold cup to your hand

• From the cold cup to the warm air

• From the ice to your hand

• From your warm hand to the cold cup.

Tags

NGSS.MS-PS3-3

Conductors are materials that...

• Allow heat to pass through

• Stop heat from passing through

• Allow cold to pass through

• Stop cold from passing through

Tags

NGSS.MS-PS3-3

Where would energy transfer by conduction move downward, from a higher block to a lower block?

• Sample 2 to Sample 4

• Sample 1 to Sample 2

• Sample 3 to Sample 4

• Sample 1 to Sample 3

Tags

NGSS.MS-PS1-4

Which was the most effective at preventing heat transfer from the water to the environment?

• Container P

• Container Q

• Container R

• Container S

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4