Thermodynamics

What is "Entropy"?

• The tendency of objects to warm up
• The tendency of energy to spread out
• The tendency of energy to make heat
• The tendency of objects to do work

Tags

NGSS.HS-PS3-4

In which of the following systems is entropy increasing?

• Putting together a puzzle
• Putting books on a shelf
• Breaking a plate
• Filling a jar of salt

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-3

How does a refrigerator work?

• Moves heat from inside the fridge to the room
• Blows cold air into the fridge
• Uses convection cells
• It generates cold air

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

• temperature
• conduction
• radiation
• heat 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Exothermic reactions...

• Absorb energy
• Release energy
• Release Color
• Absorb Color

Tags

NGSS.HS-PS1-4

In an endothermic reaction, heat is ,,,

• taken in
• given out

Tags

NGSS.HS-PS1-4

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

Stored energy that results from the position or shape of an object is called...

• Thermal
• Potential
• Kinetic
• Gravitational

As a system becomes more disordered, entropy

• remains the same
• increases
• decreases
• cannot be determined