Heat Transfer

What is the measurement of the average kinetic energy of a substance?

• Kinetic energy
• Temperature
• Thermal energy
• Potential energy

Heat transfers from an area of ________temperature to an area of ______ temperature.

• high to low
• low to high
• high to high

Heat is the movement of ______.

• radiation
• thermal energy
• cold
• fire

Energy is transferred as heat between two objects of ___________ temperatures. 

• differing
• same

As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.

• increases
• decreases

A high specific heat means...

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

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

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/g^oC

• 1.654 J/g^oC

• 2,567,446.875 J/g^oC

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22.0°C to 55.0°C, if the specific heat of aluminum is 0.903 J/g°C?

• 298 Joules

• 0.003 Joules

• 297 J/g°C

• 0.003 J/g°C