Chapter 1

Question 1

a hard substance that forms the branches and trunks of trees that can be used as a building material, for making things ,or as a fuel.

Answer 1

Wood

Question 2

• an area of land covered with a thick growth of trees with a less
  shade compared to a true forest

Answer 2

WOODS

Question 3

A branch of wood science which deals with the non-mechanical properties of wood.

Answer 3

Wood Physics

Question 4

Wood Physics is a theory of the _______ and ______ properties of wood and wood-based materials

Answer 4

physical; mechanical

Question 5

The non-mechanical properties of wood are determined by
the factors inherent in its structural organization to wit:

Answer 5

a. amount of water in the cell
b. amount of water substances
c. amount of extractives
d. arrangement of cell wall materials
e. kind and size of woody tissues

Question 6

Non-Mechanical Properties:

Answer 6

1. hygroscopicity
2. expression of water in wood

Question 7

• the ability of wood to absorb and lose water

Answer 7

hygroscopicity

Question 8

types of water in wood:

Answer 8

a. bound water
b. free water
c. water of constitution

Question 9

• found associated in the cell wall

Answer 9

bound water

Question 10

• water in the cell lumen, cavities, and intercellular spaces

Answer 10

free water

Question 11

• found associated with chemical structure
• part of the molecular built-up of wood

Answer 11

water of constitution

Question 12

• amount of water in wood expressed as the percentage of its oven dry weight

Answer 12

moisture content

Question 13

FACTORS AFFECTING MOISTURE CONTENT OF WOOD: The hygroscopicity of the wood is dependent on the ________ and _________ of its surrounding air.

Answer 13

relative humidity; temperature

Question 14

FACTORS AFFECTING MOISTURE CONTENT OF WOOD: The moisture content of wood _____ and _________ with variations in the atmospheric conditions around.

Answer 14

rises; falls irregularly

Question 15

• a point when all water is evaporated from the cell cavities but the cell walls are still fully saturated with moisture

Answer 15

Fiber Saturation Point

Question 16

• a condition by which the moisture content of the wood is balanced with that of the atmospheric moisture condition and wherein the wood is neither gaining nor losing moisture

Answer 16

Equilibrium Moisture Content

Question 17

• the ratio of the amount of water or moisture that is present in the air compared to the greatest amount it would be possible for the air to hold at that temperature

Answer 17

Relative Humidity