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Science > Test 2 > Flashcards

Test 2 Flashcards

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Biology 101 flashcards
1
Q

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

A

Torricelli

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2
Q

A device used to measure altitude

A

Altimeter

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3
Q

He attractive force between unlike molecules

A

Adhesion

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4
Q

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

A

Capillarity

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5
Q

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

A

Plasticity

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6
Q

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

A

Elasticity

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7
Q

A combination of stretching and compression is

A

Bending

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8
Q

States al molecules of matter are in constant motion

A

Kinetic

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9
Q

The basis for the scientific understanding of all matter

A

Atomic theory of matter

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10
Q

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

A

Crystalline

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11
Q

The proscess of mixing molecules of one substance with another substance

A

Diffusion

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12
Q

The random motion of microscopic solid particles in a liquid

A

Brownian motion

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13
Q

The si unit of pressure

A

Pascal

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14
Q

Thin solids that allow certain substances to defuse through them

A

Semipermeable

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15
Q

The principal demonstrated by the hydronic press is

A

Pascals principal

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16
Q

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

A

Buoyancy

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17
Q

Airfoil like structures designed to use in water

A

Hydrofoil

18
Q

How strongly a material applies deformation

A

Rigidity

19
Q

The type of deformation causes by twisting

A

Torsion

20
Q

Literal pressure exerted by a moving fluid

A

Bernoulli’s

21
Q

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

A

Archimedes

22
Q

Amount of deformation is preprtional the the amount of stretching force

A

Hooks law

23
Q

Applied pressure inside a container is equily distributed

A

Pascals

24
Q

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

A

Amontons

25
Q

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

A

Charles law

26
Q

The one way diffusion through a semipermeable membrain

A

Osmosis

27
Q

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

A

Liquid

28
Q

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

A

Compressibility

29
Q

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

A

Siphon

30
Q

Solids that have molecules or atoms randomly arranged

A

Amorphous

31
Q

He hardness scale that measures how easily a material is scratched

A

Mohs

32
Q

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

A

Submarine

33
Q

Extremely small particular hat make of matter

A

Atom

34
Q

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

A

Streamlining

35
Q

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

A

Meniscus

36
Q

At what point is a submarine completely underwater but not sinking

A

Neutral buoyancy

37
Q

Increases wings area to produce more lift

A

Flap

38
Q

Structure that tilts the airplane from side to side

A

Ailerons

39
Q

Downward force of gravity on an airplane

A

Weight

40
Q

Force that tends to show and object moving through an object

A

Drag

41
Q

An airplanes agnle left or right

A

Yaw

42
Q

Controls pitch

A

Elevators

Science (8 decks)

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