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28 Cards in this Set
- Front
- Back
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What is temp?
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Measure of kinetic energy possessed by the particles of a substance.
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What is pressure?
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the force per unit area.
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what is kinetic energy?
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is the energy a substance has due to to the motion of its molecules.
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what is heat?
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when kinetic energy of a substance is transfered to another substances.
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where is the highesy temp in the ocean found?
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The hydrothermal vents
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how high can the temps reach at the hydrothermal vents?
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more than 350 degrees
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why does water take longer to heat?
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it has a higher specific heat
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what is specific heat?
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the amount of heat needed to raise the temp of one gram of a substance one degree celsius.
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what is heat measured in?
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Calories
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what is a calorie.
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the amount of heat required to raise the temp of one gram of water one degree celsius.
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What is a bathythermograph?
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a narrow torpedo-shaped canister that is lowered into the ocean to make comtinous temp readings.
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What is metabolic activity?
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orangisms internal energy level.
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whta is Glycoprotein?
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keeps fish from freezing in cold temps, natural antifreeze, coats ice crystals
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what is endothermic?
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maintaining a stable body temp
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what causes hypothermia?
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excessive loss of body heat
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what is hydrostatic pressure?
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pressur eexerted dy the water's mass
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what is ambient pressure?
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is the sum of the pressure from the water and the atmosphere
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What is the current depth record for scuba diving?
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132 Meters
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what is barotrauma?
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any diving injury associated with pressure
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what is "the bends"
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a diving injury involved with pressure
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how do you get the bends?
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from coming up too fast from the bottom
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what is decompression?
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the sudden decreese in pressure when ascending while diving
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what is a gas bubble blocking a blood vessel in an important organ?
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it is called air embolism
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what do you do to prevent these things ffrom happening?
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breath normally on the way up and dont go too fast
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what happens when you take dives below 30 meters?
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you seem drunk or intoxicated
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what is this called?
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Nitrogen narcosis
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nitrogen makes up what percent of the air we breath?
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78%
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osmoregulation
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ablility to maintain a proper water balence in a body
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