Themodynamics

the transfer of heat energy in a gas or liquid by means of currents in the heated fluid

• conduction
• convection
• radiation

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NGSS.MS-PS1-4

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the transfer of energy by means of electromagnetic waves

• conduction
• convection
• radiation

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When thermal energy is added to a substance, the substance's particles move:

• More rapidly at an increased diestance from each other.
• More rapidly with less distance between each other.
• More slowly with a greater distance between each other.
• More slowly with a reduced distance between each other.

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A substance with a high specific heat:

• Is always extremely hot.
• Requires a lot of energy to become hot.
• Is not heavy.
• Does not requires a lot of energy to become hot.

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NGSS.MS-PS1-4

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Thermal energy always moves:

• From a high temperature object to a lower temperature object.
• From a lower temperature object to a higher temperature object.
• From an object with lower kinetic energy to an object with higher kinetic energy.
• From an object of higher mass to an object of lower mass.

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NGSS.HS-PS3-4

The amount of thermal energy required to raise the temperature of one (1) kilogram of a substance by 1^o C is known as:

• Specific heat
• Heat of fusion
• Heat of vaporization
• Melting point

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NGSS.HS-PS3-4

The second  law of thermodynamics states that entropy of a system  tends to ______________. 

• increase
• decrease
• stay constant
• fluctuate wildly

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NGSS.HS-PS3-4

A high specific heat means...

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

What quantity of heat is required to raise the temperature of 450 grams of water from 15°C to 85°C? The specific heat capacity of water is 4.18 J/g/°C.

• 131670 J
• 159885 J
• -131670
• none of the above

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NGSS.HS-PS3-1

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A block of ice is placed on a hot sidewalk. The ice melts because

• the energy from the ice flows to the sidewalk.
• the energy from the sidewalk flows to the ice.
• convection currents flow between the ice and the sidewalk
• radiation flows between the ice and the sidewalk

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NGSS.HS-PS3-4