PADI Scuba Diving: Section 1 Beginner Guide
1. What will buoyancy of 1.
positive
an object be (positive, 2.
negative
negative, neutral) if it displaces an amount of water:
, PADI Scuba Diving: Section 1 Beginner Guide
1. more than its 3. neutral
own weight
2. less than its
own weight
3. equal to its
own weight
2. Why is buoyancy
con- trol, both at
the sur- face and
underwater, one of Because it lets you control where you are in the water
the most im-
portant skills a
diver can master?
3. What two items
con- trol a diver's
buoyan- cy? lead weights and a buoyancy control device (BCD)
4. How does the
buoy- ancy of an
object dif- fer in you're more buoyant in salt water than in fresh
fresh water
compared to salt
wa- ter?
5. How does lung vol-
while exhaling, you decrease the volume of your lungs and the
amount of
ume affect buoyancy? water you displace, which makes you less buoyant.
6.
, PADI Scuba Diving: Section 1 Beginner Guide
Why do you usual- your body is primarily liquid, which is incompressible and distributes
ly only feel pres- sure equally throughout your entire body m
changing
pressure in your body
air spaces?
water is much denser and heavier that air, pressure changes much
7. why are pressure more significantly for a given distance ascent or descent
changes while as-
cending or de-
scending
underwater much
more substan- tial
than pressure
changes when as-
cending or
descend- ing the
same distance in add one bar pressure for every 10 meters/33 feet you descend
air?
8. what is the
relation- ship
between increas-
ing and
decreasing depth
and water pres-
sure?
9. What are the absolute 1. 2 bar
pressures, in atmos- 4. 40 meters/132 ft
pheres or bar,
for: 10. What is the relation- ship between air
1. 10 meters/33 ft vol- ume and density, and
2. 20 meters/66 ft
3. 30 meters/99 ft
1. What will buoyancy of 1.
positive
an object be (positive, 2.
negative
negative, neutral) if it displaces an amount of water:
, PADI Scuba Diving: Section 1 Beginner Guide
1. more than its 3. neutral
own weight
2. less than its
own weight
3. equal to its
own weight
2. Why is buoyancy
con- trol, both at
the sur- face and
underwater, one of Because it lets you control where you are in the water
the most im-
portant skills a
diver can master?
3. What two items
con- trol a diver's
buoyan- cy? lead weights and a buoyancy control device (BCD)
4. How does the
buoy- ancy of an
object dif- fer in you're more buoyant in salt water than in fresh
fresh water
compared to salt
wa- ter?
5. How does lung vol-
while exhaling, you decrease the volume of your lungs and the
amount of
ume affect buoyancy? water you displace, which makes you less buoyant.
6.
, PADI Scuba Diving: Section 1 Beginner Guide
Why do you usual- your body is primarily liquid, which is incompressible and distributes
ly only feel pres- sure equally throughout your entire body m
changing
pressure in your body
air spaces?
water is much denser and heavier that air, pressure changes much
7. why are pressure more significantly for a given distance ascent or descent
changes while as-
cending or de-
scending
underwater much
more substan- tial
than pressure
changes when as-
cending or
descend- ing the
same distance in add one bar pressure for every 10 meters/33 feet you descend
air?
8. what is the
relation- ship
between increas-
ing and
decreasing depth
and water pres-
sure?
9. What are the absolute 1. 2 bar
pressures, in atmos- 4. 40 meters/132 ft
pheres or bar,
for: 10. What is the relation- ship between air
1. 10 meters/33 ft vol- ume and density, and
2. 20 meters/66 ft
3. 30 meters/99 ft
