Heat And Vision underwater Flashcards
1
Q
3 Ways Of Heat Transfer are
A
Conduction
Convection
Radiation
2
Q
A diver loses most of his body heat by?
A
Conduction.
3
Q
Water conducts heat how many times more than air?
A
24 times more.
4
Q
Thermal conductivity of helium is how many times greater than air?
A
6 times greater.
5
Q
Refraction makes objects appear what?
A
Closer and larger, objects appear 25% larger.
6
Q
What is the effect on objects in Turbid (Murky) Water?
A
The object will appear smaller and further away (Visual reversal)
7
Q
Sound travels how much faster underwater?
A
4 times faster, 4,921 feet per second.
