Aquatic Biomes And Fluid Dynamic

Question 0

The centerfold of the immersed part of a ship or other floating body

Answer 0

Center of buoyancy

Question 1

The ability or tendency to float in water or air and some other fluid

Answer 1

Buoyancy

Question 2

an upward force exerted by a fluid that opposes the weight of an immersed object

Answer 2

Net buoyant force

Question 3

The moving of something from its place or position

Answer 3

Displacement

Question 4

A steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temps

Answer 4

Thermocline

Question 5

What are the characteristics of aquatic ecosystems?

Answer 5

Temp, salinity, oxygen, nutrients and sunlight

Question 6

What are the 3 types of organisms found in aquatic ecosystems?

Answer 6

Phytoplankton , nekton, benthos

Question 7

Near the shore

Answer 7

Littoral

Question 8

Near the bottom

Answer 8

Benthic

Question 9

What 2 seasons does lakes turnover?

Answer 9

Spring and autumn

Question 10

Areas saturated with water during part of the year

Answer 10

Wetlands

Question 11

Which biome is the most diverse ?

Answer 11

Coral reefs

Question 12

What is the salinity of the ocean

Answer 12

3%

Question 13

What is the salinity of freshwater?

Answer 13

0.5%

Question 14

Pressure applied to a fluid in a closed container is equally applied to all parts of the fluid and the container

Answer 14

Pascals principle

Question 15

How does pascals principle apply to water??

Answer 15

Scuba divers

Question 16

The transfer of energy by the motion of a liquid or gas; think convection oven,
it blows hot air around the oven to cook the food more quickly

Answer 16

Convection

Question 17

When gravitational force is greater than buoyant force what will happen?

Answer 17

The object will sink

Question 18

When the gravitational force is less then buoyant force what will happen?

Answer 18

The object will float

Question 19

When the gravitational force is equal to the buoyant force what will happen

Answer 19

It will neither sink nor float

Question 20

Will buoyant force increase or decrease one more of the volume of an object is underwater?

Answer 20

Increase

Question 21

Why is buoyant force and upward force not horizontal

Answer 21

Because it opposes gravity which is an downward force

Question 22

The buoyant force is equal to the weight of the displaced water

Answer 22

Archimedes principle

Question 23

As it contracted the plates and the fish sinks as it relaxes to fill with oxygen and causes of fish to become more buoyant

Answer 23

Swim bladder

Question 24

The pressure of a fluid (gas or liquid) as the fluid velocity increases

Answer 24

Bernoulli’s principle

Question 25

Which animal in the ocean is most affected by the Bernoulli’s principal?

Answer 25

The shark, it becomes less boy it when it stops moving

Question 26

What will happen if net buoyant force is zero?

Answer 26

Neither float or sink