Something underwater that does not float and does not sink is ________.
Neutrally Bouyant
If an object is neutrally buoyant in salt water. What will probably happen to the object
if you put it into fresh water?
The object will sink.
Imagine a diver is 33 metres/99 feet underwater. The water...
PADI Quiz 1A, PADI Quiz 2A, PADI Quiz
3A, PADI Quiz 4A Questions and Correct
Verified Answers
Something underwater that does not float and does not sink is ________.
✓ Neutrally Bouyant
If an object is neutrally buoyant in salt water. What will probably happen to the object
if you put it into fresh water?
✓ The object will sink.
Imagine a diver is 33 metres/99 feet underwater. The water pressure at this depth
would be ______times more than the pressure at the surface.
✓ Four
Imagine you hold a glass full of air upside down and you take it to the bottom of the
swimming pool without tipping it. The density (thickness) of the air inside the glass will
be ____ at the surface.
✓ Greater than
What should you do if you cannot equalize (clear) your ears or sinuses while you are
descending (going down)?
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
✓ Stop and ascend (go up) a few metres/feet and try to equalize (clear) again.
What should you do to prevent mask squeeze (a sucking or pulling feeling on your face
and eyes)?
✓ Blow into your mask through your nose.
Imagine you put air into a balloon underwater at 10 metres/33 feet and then you take it
to the surface. The air in the balloon will:
✓ Expand to twice the size as it was at 10 metres/33 feet.
What can happen to you if you hold your breath while ascending (going up) on a scuba
dive?
✓ Your lungs can over expand which could cause serious injury.
What is the most important feature of a scuba regulator?
✓ How easy it is to breathe from it.
Why is it important to practice the buddy system whenever you go diving?
✓ Diving is easier, safer and more fun with a buddy.
When you look at things underwater they often seem ____ than when you look at them
on the surface.
✓ Nearer and larger
Top Mark !!!
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