Movin' and Groovin'
What scientific idea is the first law of thermodynamics a practical restatement of?
Law of conservation of energy
Changes in which property drives a convection current?
Density
What scientific idea is the first law of thermodynamics a practical restatement of?
The law of conservation of energy
What is the temperature at which vapor pressure equals atmospheric pressure?
Boiling point
What is the weakest force?
Gravitational force
What type of potential energy is caused by restorative forces?
Elastic potential energy
What is an example of conduction?
An object in the sun, and a handle of a pot
How does the volume of liquid water change as water is cooled from 4 degrees to 0 degrees Celsius?
Volume increases
The temperature above which a substance cannot exist as a liquid but behaves as a gas regardless of the pressure upon it is?
Critical temperature
What theoretical device would generate the maximum possible amount of work from a given amount of heat?
Carnot (Carrot) Engine
What is energy of motion called?
Kinetic energy
The amount of heat needed to cause a unit rise in the temperature of a unit mass of a substance
Specific heat
The amount of heat required to change a given amount of a solid into a liquid without a temperature change?
Heat of fusion
What is the relationship between vapor pressure and the temperature of a liquid?
As temperature decreases, vapor pressure decreases.
What fundamental force is responsible for elastic prtential energy?
Electromagnetic foce
What property explains why adding energy to an object increases the object's mass?
Mass-energy equivalence
Why is heat of vaporization much greater than heat of fusion?
The cohesion of molecules must be completely overcome
Which method of heat transfer does a hot-water heating system us to heat a room?
Convection
The type of energy that is related to the kinetic theory of matter is?
Thermal energy
The transfer of heat by moving fluids is called?
Convection
What s principle says that natural processes tend to go towards less usable energy and greater disorder?
Second law of thermodynamics
The amount of heat needed to change an object's temperature by a certain amount?
Heat capacity
What is the most important part of a heat pump?
Refrigerant
The energy associated with the position of an object and the forces acting on the object is?
Potential energy
An object that is moving in space while changing its location has the form of whole body kinetic energy know as?
Translational energy