Heat and Energy

A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C.  Calculate the specific heat capacity of iron.    

• 0.46 J/gx^oC
• 1.654 J/gx^oC
• 2,567,446.875 J/gx^oC

Tags

NGSS.HS-PS3-1

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

Tags

NGSS.MS-PS1-4

How many Joules of energy are required to change 10 gram of liquidwater from 20 C to 90 C?

• 1400 J
• 2800 J
• 210,000 J
• 1,400,000 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Which of the following is NOT true about heat? 

• Heat moves from hot to cold
• Heat is a form of energy
• Heat cannot be transferred
• Heat makes molecules speed up 

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

___________ is measured by the unit Joules.

• Heat energy
• Temperature
• Specific heat

Tags

NGSS.HS-PS3-4

How many joules are required to boil 75 grams of water?

• 25050J

• 169500J

• 31350J

• 10000J

Tags

NGSS.HS-PS3-1

How many Joules of energy are required to make 100 grams of ice at 0 ^οC completely melt?

• 200 J

• 400 J

• 33,400 J

• 2,000,000 J

Between which two points is the solid cooling?

• A <---- B

• B <----> C

• C <---- D

• D <----> E

• E <---- F

Tags

NGSS.HS-PS3-4

Between which points is water changing states of matter?

• A <----> B

• B <----> C

• C <----> D

• D <----> E

• E <----> F

Tags

NGSS.HS-PS3-4

On a hot, humid summer day drops of water form on a can of cold soda. What process caused this to happen?

• condensation

• freezing

• vaporization

• deposition

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4