S8P1.c Describe the movement of particles in solids, liquids, gases, and plasmas states.

1
S8P1.c Describe the movement of particles in
solids, liquids, gases, and plasmas states.
S8P2.c Compare and contrast the different forms
of energy (heat, light, electricity, mechanical
motion, sound) and their characteristics.
2
Temperature is a measure of the average kinetic
energy of the particles in an object.
Which picture has a higher temperature? The one
on the right b/c it has faster moving particles
3
The temperature of a substance depends on the
average kinetic energy of all its particles. Its
temperature does not depend on how much of it you
have. Look at the figure below. A pot of tea
and a cup of tea each have a different amount of
tea. But their atoms have the same average
kinetic energy. So, the pot of tea and the cup
of tea are at the same temperature.
4
Thermal energy is the total kinetic energy of a
substance. (Remember, temperature is the average
kinetic energy). Which would have a higher
temperature? a cup of boiling tea or an
iceberg Which would have a higher thermal energy?
5
Thermometers can measure temperature because of a
property called thermal expansion. Thermal
expansion is the increase in volume of a
substance because of an increase in temperature.
As a substances temperature increases, its
particles move faster and spread out.
Absolute Zero gt temperature at which there is no
particle motion
measured as 0 Kelvin (K)
6
Heat is the transfer of energy between substances
of different temperatures. Heat always moves
from warm to cool.