Chapter 5 Thermal Energy and Heat

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

• 60ºC
• 40ºC
• -60ºC
• -40ºC

What unit do you use to measure Thermal Energy?

• J/Kg ºC
• Kg
• ºC
• J

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

The measure of average kinetic energy of all the particles within an object is called ____________. 

• temperature
• conduction
• radiation
• heat 

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Thermal energy ALWAYS moves from _____ to _____.

• solid to liquid
• ice to water
• hot to cold
• solid to gas

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You're holding hands with your best friend.  Your friend's hands are REALLY warm and yours are really cold.  After a few minutes, this has changed.  How might you explain what happened?

• The cold energy from your hand transferred to your friend's hand through conduction.
• The heat energy from your friend's hand transferred to your hand through conduction. 
• The cold energy from your hand transferred to your friend's hand through convection.
• The heat energy from your friend's hand transferred to your hand through convection.

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When you touch something that feels cold, 

• heat from your hand moves into the cold substance.
• coldness moves from the cold substance into your hand.
• it melts.
• it freezes.

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Heat flows spontaneously from hot objects to

• hot objects.

• cold objects.

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This type of energy depends on mass, temperature and the phase of an object.

• nuclear

• chemical

• thermal

• electrical

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The amount of heat needed to raise the temperature of one gram of a material by one degree Celsius is called

• Specific Temperature.

• Specific Heat

• Absolute Heat

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