Physical Properties

Question 1

study of how matter flows and its characteristics

Answer 1

rheology

Question 2

rheology is related to blank

Answer 2

viscosity

Question 3

resistance to motion of a liquid

Answer 3

viscosity

Question 4

viscosity is controlled by internal blank forces in a liquid

Answer 4

friction

Question 5

a liquid that becomes less viscous and more fluid under pressure

Answer 5

thixotropic

Question 6

time dependent plastic strain of materials under a static load or constant stress

Answer 6

creep

Question 7

deformation potential of long span metal bridges during porcelain firing

Answer 7

sag

Question 8

deformation under static load

Answer 8

flow

Question 9

flow is used for blank materials like super cooled liquids like waxes

Answer 9

amorphous

Question 10

measure of how well heat is transferred through a material by the conductive flow

Answer 10

thermal conductivity

Question 11

occurs when electrons increase their kinetic activity

Answer 11

conductivity

Question 12

materials with good thermal conductivity

Answer 12

conductors

Question 13

material with low thermal conductivity

Answer 13

insulator

Question 14

controls the time rate of temp change as heat passes through a material

Answer 14

thermal diffusivity

Question 15

change in length per unit of the original length of a material when its temperature is raised 1 degree Celsius

Answer 15

coefficient of thermal expansion

Question 16

material with closest coefficient of thermal expansion to teeth

Answer 16

gold

Question 17

material with farthest coefficient of thermal expansion to teeth

Answer 17

unfilled resin

Question 18

dentin modulus of elasticity… flexible

Answer 18

14

Question 19

enamel modulus of elasticity…. very hard

Answer 19

130

Question 20

best material for restoring dentin like anterior teeth due to same modulus of elasticity

Answer 20

composite

Question 21

light is blank radiation

Answer 21

electromagnetic

Question 22

visible spectrum

Answer 22

400 nm (violet) - 700 nm (dark red)

Question 23

referred to as the basic color-dominant wavelength

Answer 23

hue

Question 24

relative blackness or whiteness

Answer 24

value (0=black… 100=white)

Question 25

brightness, saturation, intensity of the color

Answer 25

chroma

Question 26

color that can travel deepest

Answer 26

blue

Question 27

degree to which light is bent when it passes from one medium to another

Answer 27

refractive index

Question 28

ability of a material to resist abrasion or wear

Answer 28

hardness

Question 29

objects may appear color matched under one type of light but not under another light source

Answer 29

metamerism

Question 30

object that absorbs light waves under the visible spectrum and convert them into visible longer wavelengths

Answer 30

fluorescence

Question 31

most bite force is on these teeth

Answer 31

molars