Test 2 Flashcards
The scientist who proposed that air has weight and there fore exerts pressure
Torricelli
A device used to measure altitude
Altimeter
He attractive force between unlike molecules
Adhesion
The phenomenon in which liquids in thin tubes rose above or fall beneath their levels
Capillarity
He maximum amount of permanent change a solid may be subjected to without breaking is
Plasticity
The ability of an object to recover its original shape after it has been deformed
Elasticity
A combination of stretching and compression is
Bending
States al molecules of matter are in constant motion
Kinetic
The basis for the scientific understanding of all matter
Atomic theory of matter
Solids who’s molecules or atoms at a ranged in an ordered pattern
Crystalline
The proscess of mixing molecules of one substance with another substance
Diffusion
The random motion of microscopic solid particles in a liquid
Brownian motion
The si unit of pressure
Pascal
Thin solids that allow certain substances to defuse through them
Semipermeable
The principal demonstrated by the hydronic press is
Pascals principal
The tendance of a solid object to float whenplaced in a fluid
Buoyancy
Airfoil like structures designed to use in water
Hydrofoil
How strongly a material applies deformation
Rigidity
The type of deformation causes by twisting
Torsion
Literal pressure exerted by a moving fluid
Bernoulli’s
Buoyant force experienced by an object is exactly equip to the weight of the fluid displaced
Archimedes
Amount of deformation is preprtional the the amount of stretching force
Hooks law
Applied pressure inside a container is equily distributed
Pascals
At a constant volume temperature and pressure of a gas are directly proportional
Amontons
At a constant pressure volume and temperature of a gas are directly proportional
Charles law
The one way diffusion through a semipermeable membrain
Osmosis
Melacules of a what are able to move quickly but remain close to eachother
Liquid
The ability of a gas to be easily squeezed and compacted into a container is
Compressibility
A simple device used to move a liquid over an object with pumps
Siphon
Solids that have molecules or atoms randomly arranged
Amorphous
He hardness scale that measures how easily a material is scratched
Mohs
What type of vessel can change its buoyancy to float or or manicure beneoth the surface
Submarine
Extremely small particular hat make of matter
Atom
What is the science of shaping objects to allow the smooth flow of liquids around hem
Streamlining
What so the curved structure that forms because the adhesion of water to glass is stronger that the cohesion between molecules
Meniscus
At what point is a submarine completely underwater but not sinking
Neutral buoyancy
Increases wings area to produce more lift
Flap
Structure that tilts the airplane from side to side
Ailerons
Downward force of gravity on an airplane
Weight
Force that tends to show and object moving through an object
Drag
An airplanes agnle left or right
Yaw
Controls pitch
Elevators
