Chapter 1 -1 Being a Diver

What is the pressure change for each 10 metres/33 feet of depth change

Pressure = 2 bar/ata

What is the relationship between my depth in water and the pressure?

The deeper you go, the pressure increase and air density decreases Depth = 0m/0ft 1 bar/ata Air Volume= 1 Air Density= x1 Depth = 10m/33ft Pressure = 2 bar/ata Air Volume = 1/2 Air Density = x2 Depth = 20m/66ft Pressure = 3 bar/ata Air Volume = 1/3 Air Density = x3 Depth = 30m/99ft Pressure = 4 bar/ata Air Volume = 1/4 Air Density = x4 Depth = 40m/132ft Pressure = 5 bar/ata Air Volume = 1/5 Air Density = x5

What is the relationship between pressure, and the volume and density of air?

The deeper you go, the pressure increase and air density decreases Depth = 0m/0ft 1 bar/ata Air Volume= 1 Air Density= x1 Depth = 10m/33ft Pressure = 2 bar/ata Air Volume = 1/2 Air Density = x2 Depth = 20m/66ft Pressure = 3 bar/ata Air Volume = 1/3 Air Density = x3 Depth = 30m/99ft Pressure = 4 bar/ata Air Volume = 1/4 Air Density = x4 Depth = 40m/132ft Pressure = 5 bar/ata Air Volume = 1/5 Air Density = x5

If I take a volume of air from one depth to another depth, how much will the volume and density change?

Volume decreases and Air density decreases

As you descend in water, the pressure a. increases b. decreases c. does not change

a. increases

A balloon fully inflated and sealed at 10 metres/33 feet, would probably________________during ascent to the surface a. Shrink (become smaller) b Burst

b Burst

A depth change of 10 metres/33 feet causes a pressure change of a. 1 bar/ata b. 2 bar/ata c. 4 bar/ata

b. 2 bar/ata

If you take 6 litres of air from the surface to 20 metres/66 feet, the volume a. 1 b. 2 c. 3 d. 4

c. 3

The density of the air in the previous question would be___________________ the density at the surface a. one-third b. one-half c. three times d. Four times

c. three times