Chapter 3

Question 1

• how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass).

Answer 1

Density

Question 2

density is the amount of _____ per unit volume

Answer 2

mass

Question 3

density are materials that are dense are most likely to feel ______ or ______

Answer 3

heavy; hard

Question 4

Solid wood substance in a given volume of wood – but they are expressed somewhat differently

Answer 4

wood density

Question 5

______ differs depending on the extent of material (cell wall) and voids (cell lumen) present in the certain volume of wood

Answer 5

Density

Question 6

Important physical properties of all wood resources both for softwoods and hardwoods

Answer 6

wood density

Question 7

wood density used to measure the amount of these wood substance:

Answer 7

a. dead cell
b. cell walls
c. cell cavities

Question 8

– made of cells which have denser walls and smaller voids as compared to earlywood.

Answer 8

Latewood

Question 9

___________ has Higher density than the ___________; explains why the density of wood rises with the increasing part of latewood.

Answer 9

latewood; early wood

Question 10

• large cells and has thinner walls.

Answer 10

Earlywood

Question 11

• an increase of growth rings size is linked to an increase of latewood part including its density.

Answer 11

Hardwoods

Question 12

• the part of the latewood tends to decrease with an increasing tree size, thus a decrease in density

Answer 12

Softwoods

Question 13

Type of density:

Answer 13

a. Apparent Density
b. Conventional Density

Question 14

the ratio, expressed in g / cm³, between the apparent mass and volume of wood

Answer 14

Apparent Density

Question 15

ρc) represents the ratio of wood mass a.u. (anhydrous) and the maximum volume of the same sample (the maximum volume is the wood with saturated moisture fiber)

Answer 15

Conventional Density