Pressure/ atm pressure
What is the unit of pressure in the SI
Pascal
Archimedes principle states
the buoyant force = weight of the fluid displaced by the substance
Define Pascal´s principle
when force is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the liquid.
What is surface tension?
molecules on top can only interact with the molecules below them. the molecules on top are pulled down because there are no molecules above them pulling upward. the surface contracts and results in surface tension.
Give an example of Bernoulli´s principle that could be in everyday experience
Airplanes, jet, and fluids... etc...
Define fluid pressure
the force that fluid exerts on the surface of objects
density is defined as
density = mass / volume
What is pascal´s principle
if pressure is applied to a fluid inside a closed container, the pressure increase will be distributed equally throughout the container
define adhesion
the action or process of adhering to a surface or object.
Boyle´s law states
the pressure of gas in a closed container is inversely proportional to the volume of the container assuming temp. is constant
Denser liquids exert (more pressure/ less pressure) at a given depht because they are heavier
more pressure
if the density of the object is more than density of fluid
it will sink
What does pascal´s principle say ´bout change in fluid pressure?
When force is applied to a contained fluid, the increase in pressure is distributed equally to all parts of the fluid.
define cohesion
the sticking together of particles of the same substance
what is lift
is something off the ground and it is raised
what is the instrument used to measure air pressure
barometer
Pressure increase with depth. This difference give rise to a force called ____
Buoyant force
Define hydraulic system
a system that multiplies force by transmitting pressure from a small surface area through a confined fluid to a larger surface area.
Capillarity action
the ability of a liquid to flow in narrow spaces without the assistance of, and in opposition to, external forces like gravity
Bernoulli states
he explained how a fluid is moving faster the more lower the pressure it has, how the slower is moving the more pressure it has
atmospheric pressure ________________with increasing height
decrease
Synonym of the amount of fluid pushed out of the way when an object is dropped into the fluid
displaced fluid water displacement
How does a hydraulic system work?
it multiplies forces by transmitting pressure from a small area through a confined fluid to a larger surface area.
hydrogen bonding increases_____in liquids
cohesion
know how bernoulli´s principle helps an airplane wing fly
it helps by the shape the thing is and how big it should be