Energy and Heat

How does the thermal energy flow in a glass of ice tea?

• from the ice to the tea
• from the tea to the ice
• there is no flow
• it looks good - now I am thirsty

Tags

NGSS.MS-PS1-4

Heat that is transferred from one object to another through direct contact is called

• convection
• radiation
• conduction
• thermal

The symbol for specific heat is .......

• c
• Q
• m
• t

What  is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t
• Q=mc
• Q= ½mv
• m=QC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Specific heat is....

• The measure of kinetic energy of an objects particles
• A measure of the energy needed to increase the average kinetic energy of the particles
• The heating caused by the motion of flluid due to temperature difference
• The transfer of energy by electromagnetic radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The specific heat of aluminum is 0.21 J/g°C.  How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?

• 105 J
• 10.5 J
• 1.05 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

Tags

NGSS.4-PS3-2

The Gulf Stream is a current that brings warm ocean water from the south to the north.

• conduction
• convection
• radiation

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Walking on the warm sand sand with your bare feet.

• conduction
• convection
• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Blow drying your wet hair.

• conduction
• convection
• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5