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Oceanography Test 2
Oceanography Test 2 study guide
| Question | Answer |
|---|---|
| Heat is... | The TOTAL energy of randomly moving molecules |
| Temperature is... | The measure of the AVERAGE speed of molecules |
| The degrees most often used by scientists to measure temperature? | Celcius |
| The amount of heat required to raise the temperature of a substance by a given amount. | Heat Capacity |
| What happens to water's density as it freezes? | becomes less dense |
| True or false- Most substances, other than water, get denser when frozen. | True |
| Heat loss when water freezes without a change in temperature is called? | Latent heat of fusion |
| The heat required to vaporize a substance is called? | Latent heat of evaporation |
| The tendency for water to resist temperature change? | Thermal inertia |
| Cooling at the same rate as heating is called? | Thermal equilibrium |
| What two things make seawater more dense? | Low temperature and Salinity |
| What happens to the density of seawater as you go deeper? | Becomes more dense |
| What percentage of the ocean's volume is made up by the surface water? | 2% |
| The boundary between layers of the ocean based on temperature? | Thermocline |
| Particles in water absorb light and turn it into what? | Heat |
| A zone of the ocean where sunlight never reaches. | Apothic |
| True or false- Cool ocean temperatures make organisms live longer. | False |
| What is an advantage of an Endotherm's metabolic rate? | It's rate stays the same. |
| How much faster does sound travel through water than air? | 5 times faster |
| The pressure you feel (not fish) as you go deeper in water. | Hydrostatic pressure |
| What happens to the ratio of cell surface to volume as it's diameter increases? | Decreases |
| Why is a high surface to volume ratio in cell's important? | It affects the efficiency of the cell membrane |
| What is the importance of buoyancy on marine organisms? | It minimizes the effects of their weight. |
| The most common adaptation of marine organisms for overcoming water resistance? | Streamlining their bodies |
| Organisms can be be introduced to new habitats via the oceans by this. | Drifting |