8A.1 Heat And Temperature Flashcards
what happens to the molecules in an object when it’s being heated up
the molecules would receive energy in terms of kinetic energy making them move faster (in solids vibrate more)
the kinetic energy of molecules in an object determines the
the temperature of the object
what is the rs between the temperature of the object and the kinetic energy of the molecules in the object
directly proportional
what is the kinetic theory
the idea that consideration of the microscopic movement of particles will predict the microscopic behavior of a substance
what is the absolute temperature
the theoretical temperature at which molecules will no longer be moving, all the kinetic energy has been removed
what is the celsius scale
a scale of temperature with zero degrees at the freezing point of water, and 100 degrees at the boiling point of water
why does the Fahrenheit scale have the freezing temp of water at 32
in the expectation that there would never be a temperature colder than 0 measured
what is the Kalvin scale
an absolute temperature scale with each degree the same size as those on the celsius scales
the zero-degree in temperature scale is placed in places compared with
the internal kinetic energy of molecules (i.e for C 0 is the freezing point of water)
what is absoulte temperaute
a temperature scale that starts at absulote zero
convert C to K you
add by 273.15
how can we use a potential divider circuit to allow a motor to work at a certain temp
find the output voltage at different temperatures with the fixed resistor attached to the motor to calibrate the thermistor, then use a variable resistor to set the resistance to make sure that when the output V exceeds a certain value the thermistor is at a certain temp
potential divider circuits
page 119
what is the safety note when using potential divider circuits
be careful not to overload the circuit as they may get hot enough to burn ur skin
