Energy and Specific Heat

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.MS-PS3-4

 How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/gx°C?    

• 297 Joules
• 0.003 Joules
• 297 J/gx°C
• 0.003 J/gx°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

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

• c
• Q
• m
• t

Tags

NGSS.MS-PS3-4

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

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

• 1405 J

• 2928 J

• 210,000 J
• 1,400,500 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If 200 grams of water is to be heated from 24.0° C to  100.0° C to make a cup of tea, what is the mass and what is the change in temperature?

• m=200g
  ∆t= 66
• m=200g
  ∆t=124
• m=200
  ∆t=100
• m=200g
  ∆t=76

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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 

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NGSS.HS-PS3-2

NGSS.HS-PS3-4

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

A material was cooled from 100ºC to 40ºC.  What is the temperature change?

• 60ºC
• 40ºC
• -60ºC
• -40ºC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What does temperature measure?

• Heat
• ºC
• Kinetic Energy
• Thermal Energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4