Test 2

Question 1

The scientist who proposed that air has weight and there fore exerts pressure

Answer 1

Torricelli

Question 2

A device used to measure altitude

Answer 2

Altimeter

Question 3

He attractive force between unlike molecules

Answer 3

Adhesion

Question 4

The phenomenon in which liquids in thin tubes rose above or fall beneath their levels

Answer 4

Capillarity

Question 5

He maximum amount of permanent change a solid may be subjected to without breaking is

Answer 5

Plasticity

Question 6

The ability of an object to recover its original shape after it has been deformed

Answer 6

Elasticity

Question 7

A combination of stretching and compression is

Answer 7

Bending

Question 8

States al molecules of matter are in constant motion

Answer 8

Kinetic

Question 9

The basis for the scientific understanding of all matter

Answer 9

Atomic theory of matter

Question 10

Solids who’s molecules or atoms at a ranged in an ordered pattern

Answer 10

Crystalline

Question 11

The proscess of mixing molecules of one substance with another substance

Answer 11

Diffusion

Question 12

The random motion of microscopic solid particles in a liquid

Answer 12

Brownian motion

Question 13

The si unit of pressure

Answer 13

Pascal

Question 14

Thin solids that allow certain substances to defuse through them

Answer 14

Semipermeable

Question 15

The principal demonstrated by the hydronic press is

Answer 15

Pascals principal

Question 16

The tendance of a solid object to float whenplaced in a fluid

Answer 16

Buoyancy

Question 17

Airfoil like structures designed to use in water

Answer 17

Hydrofoil

Question 18

How strongly a material applies deformation

Answer 18

Rigidity

Question 19

The type of deformation causes by twisting

Answer 19

Torsion

Question 20

Literal pressure exerted by a moving fluid

Answer 20

Bernoulli’s

Question 21

Buoyant force experienced by an object is exactly equip to the weight of the fluid displaced

Answer 21

Archimedes

Question 22

Amount of deformation is preprtional the the amount of stretching force

Answer 22

Hooks law

Question 23

Applied pressure inside a container is equily distributed

Answer 23

Pascals

Question 24

At a constant volume temperature and pressure of a gas are directly proportional

Answer 24

Amontons

Question 25

At a constant pressure volume and temperature of a gas are directly proportional

Answer 25

Charles law

Question 26

The one way diffusion through a semipermeable membrain

Answer 26

Osmosis

Question 27

Melacules of a what are able to move quickly but remain close to eachother

Answer 27

Liquid

Question 28

The ability of a gas to be easily squeezed and compacted into a container is

Answer 28

Compressibility

Question 29

A simple device used to move a liquid over an object with pumps

Answer 29

Siphon

Question 30

Solids that have molecules or atoms randomly arranged

Answer 30

Amorphous

Question 31

He hardness scale that measures how easily a material is scratched

Answer 31

Mohs

Question 32

What type of vessel can change its buoyancy to float or or manicure beneoth the surface

Answer 32

Submarine

Question 33

Extremely small particular hat make of matter

Answer 33

Atom

Question 34

What is the science of shaping objects to allow the smooth flow of liquids around hem

Answer 34

Streamlining

Question 35

What so the curved structure that forms because the adhesion of water to glass is stronger that the cohesion between molecules

Answer 35

Meniscus

Question 36

At what point is a submarine completely underwater but not sinking

Answer 36

Neutral buoyancy

Question 37

Increases wings area to produce more lift

Answer 37

Flap

Question 38

Structure that tilts the airplane from side to side

Answer 38

Ailerons

Question 39

Downward force of gravity on an airplane

Answer 39

Weight

Question 40

Force that tends to show and object moving through an object

Answer 40

Drag

Question 41

An airplanes agnle left or right

Answer 41

Yaw

Question 42

Controls pitch

Answer 42

Elevators