Exploring Physics Chapters 5-7 Flashcards
Heat is a type of
energy
A rubber band is elastic because it will
snap back to it’s original shape
The rate of diffusion of a gas is inversely proportional to the ______ of its molecular weight.
square root
The volume of a gas is inversely proportional to the pressure.
Boyle’s law
Heat moving from one end of a metal fireplace poker to the other end is an example of heat transfer by
conduction
Energy is a term that has been in use
since the 1800s
If you are pushing against a desk, what must happen in order for work to occur?
the desk must move
Work transfers _______________ from one place to another.
energy
A steam engine works because ___ flows from a hot region to a cold region.
heat
The three factors that determine the heat contained in an object are type of substance, mass, and
temperature
Almost every time that energy changes form, the amount of what kind of energy increases?
heat
A sea breeze is set in motion because of
convection
The pressure of a liquid acts ___ in all directions.
equally
Heat is transferred from the sun to earth by .
radiation.
Pressure times volume of any gas divided by the temperature is a constant.
Ideal gas law
What does this demonstration measure?
You can measure heat capacity by heating identical masses of different substances and then placing them on a block of ice. Observe the different distances they melt into the ice.
