1.1 Flashcards
(37 cards)
Matter
Is anything that occupies space
Matter is found in following states:
Soild liquid gas
Volume
Is the amount of space that an object or substance occupies
Mass
is the amount of matter that a body contains
Weight
Is a measurement of force caused by gravity on a unit of mass
Gravity
Is a force that attracts objects toward the center of the earth
Force
is the total pressure acting upon an object
Pressure
is the force per unit of area measured in pounders per square inch(PSI)
Static pressure
is pressure in a confined space or not causing motion
Impact pressure
is pressure caused by motion
Relative pressure
is one pressure in relation to another
absolute pressure
is the sum of atmospheric pressure and system pressure starting from a theoretical vaccum
Pascals Law
Pressure applied to enclosed/confined fluid is transmitted equally in all directions without loss.
Bernoulli
When pressure increases, velocity decrease.
When velocity increases, pressure decreases
Convergent Venture Tube
Increase velocity/decrease pressure
Divergent venturi tube
Decrease velocity and increase pressure
Boyles Law
Increase pressure = decrease volume
Decrease pressure = increase volume
Charles Law
Increase temperature = increase volume
decrease temp = decrease volume
Newtons first law - law of inertia
A mass at will remain at rest or in motion until acted upon by an outside force
Newtons 2nd law - law of force and acceleration
when a body is acted upon by a constant force, its aceleration is inversely proportional to its mass
Newtons third law - law of interation
for every action, there is an equal and opposite reaction
Heat
form of energy produced by motion of melecules known as kinetic energy
Measurements of heat
British Thermal Unit(BTU)
Calorie
Conduction
Transfer of heat from molecule to molecule