Ch 5
What is kinetic energy due to?
Kinetic energy is due to motion
True or False:
A solid has a definite shape and volume
True
What temperature in Celcius is freezing for water?
0 degrees
The only substance that exists naturally on earth in three states is ....
Water
Is energy destroyed when particles collide?
No energy is not destroyed. It is transferred from one particle to the next.
What is the transfer of thermal energy from one material to another by electromagnetic waves?
Radiation
What matter has a definite volume, but no definite shape?
Liquids
What are the uneven forces acting on the particles on the surface of a liquid?
Surface tension
Fill in the blank:
All objects have ________ energy, which is due to its _______.
kinetic, motion
What is the equation for pressure?
force / area
In order, write the states of matter in order, which move the slowest to the fastest.
Solids, liquids, gases
What is conduction?
Transfer of thermal energy between materials by collisions of particles.
What is viscosity?
An object’s resistance to flowing
Fill in the blank:
___________ is the measure of the average kinetic energy of all the particles in an object.
Temperature
Is gas behavior affected by temperature changes?
Yes,it is.
What is convection?
Transfer of thermal energy by the movement of particles from one part of a material to another.
Fill in the blank:
Vaporization that occurs only at the surface of the liquid is called __________.
evaporation
Fill in the blank:
The gas state of a substance that is normally a solid or a liquid at room temperature is called ___________.
vapor
Fill in the blank:
When enough thermal energy is added, a solid changes to a ______. This process is called _______.
Liquid, melting
For Charles law, what is on the x axis, and what is on the y axis?
Temperature on the x axis and volume of the y axis
What are 2 good examples of thermal conductors and 2 examples of thermal insulators)
Conductors- metal, silver, gold...etc
Insulators- plastic, wood, rubber...etc
What are the two phase changes where the liquid phase is skipped?
sublimation and deposition
During what state do the particles move the most and the fastest? During what state do they move the least and the slowest?
They move the most and fastest in the gas state.
They move the least and slowest in the solid state.
Fill in the blanks:
A temperature increase within a given substance a means that the particles, on average, are moving at _______ speeds and have ______ kinetic energy in that substance.
Greater, greater
For Boyles law, what is on the x axis, and what is on the y axis?
Volume on the x axis and pressure on the y axis