Unit 6 Heat NHS

Convert 35 °C to Kelvin

• -238 K
• 308 K
• 310 K
• -240 K

Temperature is proportional to:

• Transfer of heat from a warmer object to a cooler object
• Heat
•  The average kinetic energy of the particles of a substance 
• The total energy in a substance

Tags

NGSS.HS-PS3-2

Heat is

• The transfer of energy from through random molecular motions
• Temperature
• The average kinetic energy of the particles of a substance
• The total energy in a substance

0.5 kilograms equals how many grams?

• 5 grams
• 50 grams
• 500 grams
• 5000 grams

Calculate the heat needed to raise the temperature of 0.25 kg of aluminum 7°C (c=900 J/kg°C)

• 1575 J
• -1575 J
• 514 J
• -514 J

Tags

NGSS.HS-PS3-1

One cup at 10 °C and one at 25°C are placed in a 28°C room. Heat will transfer from the room to

• The 10ºC cup
• The 25ºC cup
• Both cups
• Neither cup

Which of the following is the best conductor?

• Wood
• Iron
• Styrofoam
• Plastic

0.4kg of 70°C water is mixed with 0.1kg of 20°C water. Which will have a greater ∆T?

• 0.4 kg water
• 0.1 kg water
• ∆T will be the same

When mixing hot water and room temperature water,

• hot water absorbs and the room temperature water releases
• hot water releases and the room temperature water absorbs
• both of the waters absorb energy
• both of the waters release energy

Tags

NGSS.HS-PS3-4

What is the term used in calorimetry when the temperature of the system no longer changes?

• Heat
• Thermal Energy
• Thermal Equilibrium
• Temperature

Tags

NGSS.HS-PS3-4