Study sets matching "convection"

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Study sets matching "convection"

Convection
Convection
Density
High density liquid / gas
Low density liquid / gas
Heat transfer that occurs in ... fluids (liquid/gas). Warm fluid…
The amount of matter in a defined volume (space). The amount…
Low energy, molecules are close together and move down (cold…
High energy, molecules are spread far apart and move up and r…
Convection
Heat transfer that occurs in ... fluids (liquid/gas). Warm fluid…
Density
The amount of matter in a defined volume (space). The amount…
Convection
as the water cooled, the red color moved
as the cold water was heated, the blue…
convection
only happens in
down
up
movement due to differences in density because of temp.
liquid and gases
as the water cooled, the red color moved
down
as the cold water was heated, the blue…
up
12 terms
Convection
Density
Convection
Convection At Equator And Poles
At the poles
The ammount of matter packed together in a given space
Heat transferred through liquids and gases, causing them to m…
Water heats up at the equator and rises to the Poles. At the…
Water cools down and sinks towards the ocean floor. That wate…
Density
The ammount of matter packed together in a given space
Convection
Heat transferred through liquids and gases, causing them to m…
7 terms
Convection
convection
molecules
expand
contract
the circular movement caused by heat gain and loss in molecules
the smallest unit or the 'little bits' of a substance
an increase in volume and space when something gets bigger
a decrease in volume and space when something gets smaller
convection
the circular movement caused by heat gain and loss in molecules
molecules
the smallest unit or the 'little bits' of a substance
7 terms
Convection
What is convection?
When does convection occur?
Where does convection occur?
Why can't convection happen in solids?
a type of heat transfer due to particles moving within a liqu…
This heat transfer occurs when hotter molecules move more, sp…
This heat transfer only happens in liquids and gases.
Solids can't transfer heat this way because solid particles a…
What is convection?
a type of heat transfer due to particles moving within a liqu…
When does convection occur?
This heat transfer occurs when hotter molecules move more, sp…
convection
What is convection?
When does convection occur?
Where does convection occur?
Why can't convection happen in solids?
a type of heat transfer due to particles moving within a liqu…
This heat transfer occurs when hotter molecules move more, sp…
This heat transfer only happens in liquids and gases.
Solids can't transfer heat this way because solid particles a…
What is convection?
a type of heat transfer due to particles moving within a liqu…
When does convection occur?
This heat transfer occurs when hotter molecules move more, sp…
Convection
Density
mass
weight
Convection
Density=mass/volume
A measure of the amount of matter in an object
A measure of the force of gravity on an object
The movement of matter due to differences in density that are…
Density
Density=mass/volume
mass
A measure of the amount of matter in an object
13 terms
Convection
Climate
Hydrosphere
Atmosphere
Weather
temperature and precipitation in an area
all of the water on Earth
the layers of gases that surround the Earth
climate at a particular TIME and PLACE
Climate
temperature and precipitation in an area
Hydrosphere
all of the water on Earth
7 terms
convection
convection
density
density causes convection by....
troposphere
the movement of heat in a liquid
Mass/Volume - How tightly packed matter (stuff) is in a speci…
cold fluids more dense ... hot fluids less dense
1. layer nearest to earth... 2. all weather happens here... 3.tempe…
convection
the movement of heat in a liquid
density
Mass/Volume - How tightly packed matter (stuff) is in a speci…
16 terms
Convection
Convection
Fluid
Warmer fluids
Cooler fluids
Heat transferred through a fluid in the form of a current. It…
Any liquid or gas. Hotter liquids and gases have more energy,…
Less dense than other fluids; has more energy and moves faster.
Denser than other fluids; has less energy and moves slower.
Convection
Heat transferred through a fluid in the form of a current. It…
Fluid
Any liquid or gas. Hotter liquids and gases have more energy,…
12 terms
Convection
Density
mass
weight
Convection
Density=mass/volume
A measure of the amount of matter in an object
A measure of the force of gravity on an object
The movement of matter due to differences in density that are…
Density
Density=mass/volume
mass
A measure of the amount of matter in an object
13 terms
Convection
Hot gases and liquids are less dense s…
Chilled molecules move less and don't…
Convection
In a convection
That's how hot air balloons float : the hot air in them is le…
Therefore, the material they are in becomes more dense or hea…
is a process by which heat is transferred by movement of a he…
ahot, less dense fluid rises up, and a cold, more dense fluid…
Hot gases and liquids are less dense s…
That's how hot air balloons float : the hot air in them is le…
Chilled molecules move less and don't…
Therefore, the material they are in becomes more dense or hea…
20 terms
convection
Cold air/water always
Warm air/water always
When water particles heat up they
A convection current is
Sinks
Rises
Vibrate faster and faster.
The flow of hot and cold regions through a fluid.
Cold air/water always
Sinks
Warm air/water always
Rises
Convection
Convection
Example of convection
How are liquids and gases affected by…
How is thermal energy transferred thro…
how heat is transferred between fluids (liquids and gases )
the air around us
When heat energy is added to liquids and gases , the particle…
Through convection ,it moves from high thermal energy to area…
Convection
how heat is transferred between fluids (liquids and gases )
Example of convection
the air around us
Convection
Convection
Example of convection
How are liquids and gases affected by…
How is thermal energy transferred thro…
how heat is transferred between fluids (liquids and gases )
the air around us
When heat energy is added to liquids and gases , the particle…
Through convection ,it moves from high thermal energy to area…
Convection
how heat is transferred between fluids (liquids and gases )
Example of convection
the air around us
Convection
An object at rest has no energy.
Things "use up" energy. Energy is trul…
Objects that readily become warm (cond…
Heat and cold are different.
Objects at rest have potential energy.
Energy cannot be created or destroyed although it can be conv…
Conductors gain and lose heat easily.
Cold is the absence of heat. Heat and cold can be thought of…
An object at rest has no energy.
Objects at rest have potential energy.
Things "use up" energy. Energy is trul…
Energy cannot be created or destroyed although it can be conv…
5 terms
Convection
Convection (6)
Convection points
Conduction points
Both convection and conduction...
Convection occurs in fluids because the particles are able to…
In liquids... In gases ... atoms move ... hot air rises
In solids... Metals are good
transfer heat... Involve atoms
Convection (6)
Convection occurs in fluids because the particles are able to…
Convection points
In liquids... In gases ... atoms move ... hot air rises
5 terms
Convection
Convection
Convection
Convection
Convection
When you pour warm water in a pot of cool water convection is…
When you are in a green house it usally is warm because conve…
When you put a pot of cold water on a stove convection takes…
When you have a radiator in your house radiation is taking pl…
Convection
When you pour warm water in a pot of cool water convection is…
Convection
When you are in a green house it usally is warm because conve…
Convection
Convection
step 1
step 2
step 3
Transfer of thermal heat
heated matter expands becoming less dense
lower density cause the matter to rise
Higher density matter then sinks due to gravity
Convection
Transfer of thermal heat
step 1
heated matter expands becoming less dense
convection
convection
convection cell
energy transfer
fluid
heat transfer in a fluid in which hot fluid rises and cold fl…
mass of a fluid in a cycle in a area .
the movement of energy from one place or from one place or fo…
subtance that can flow , such as a gas or liqiud .
convection
heat transfer in a fluid in which hot fluid rises and cold fl…
convection cell
mass of a fluid in a cycle in a area .
13 terms
Convection
Climate
Hydrosphere
Atmosphere
Weather
temperature and precipitation in an area
all of the water on Earth
the layers of gases that surround the Earth
climate at a particular TIME and PLACE
Climate
temperature and precipitation in an area
Hydrosphere
all of the water on Earth
13 terms
Convection
Climate
Hydrosphere
Atmosphere
Weather
temperature and precipitation in an area
all of the water on Earth
the layers of gases that surround the Earth
climate at a particular TIME and PLACE
Climate
temperature and precipitation in an area
Hydrosphere
all of the water on Earth
5 terms
Convection
Occurs in .....
Describe what happens in terms or part…
Describe the cycle of convection
In the daytime by the sea the warm air…
Gases and liquids
Just above the heat, the particles gain kinetic energy which…
Gas / liquid rises, replaced by colder gas / liquid (cools an…
the sea
Occurs in .....
Gases and liquids
Describe what happens in terms or part…
Just above the heat, the particles gain kinetic energy which…
Convection
convection occurs in
when you heat up liquids or gases the…
the warmer less dense liquid or gas ri…
as warm fluid rises, what takes its pl…
liquids and gases
expands, becoming less dense
colder less dense surroundings
cold fluid
convection occurs in
liquids and gases
when you heat up liquids or gases the…
expands, becoming less dense
convection
Absorb
Action
Atom
Boil
To take in matter or energy
Movement;something that happens
The smallest unit of an element that has the properties of an…
To change state from a liquid to a gas because of added heat
Absorb
To take in matter or energy
Action
Movement;something that happens
Convection
Convection
Cold fluids are .... dense
Chilled molecules take up ..... Space
Cold air ....
Heat is transferred by movement of a heated fluid
More
Less
Sinks
Convection
Heat is transferred by movement of a heated fluid
Cold fluids are .... dense
More
10 terms
Convection
Convection heat
Northern hemisphere current
Southern hemisphere current
Mediterranean characteristics
The transfer of heat from one area to another on Earth
Clockwise
Counter clockwise
West coast... Same lagnitude 32-34 north... Cool water current... Next…
Convection heat
The transfer of heat from one area to another on Earth
Northern hemisphere current
Clockwise
13 terms
Convection
When heat energy is added to liquids a…
Thermal is similar to
convection
convection makes particles at the top…
quickly
heat
The flow of heated material through liquids and gases
bottom
When heat energy is added to liquids a…
quickly
Thermal is similar to
heat
30 terms
Convection
Absolute Zero
Insulator
Phases of Matter
Thermal Equilibrium
Temperature at which a substance has no kinetic energy per pa…
Things that are bad at transferring heat
Solid, liquid, gas, and plasma
Two or more substances at the same temp. due to heat transfer
Absolute Zero
Temperature at which a substance has no kinetic energy per pa…
Insulator
Things that are bad at transferring heat
13 terms
Convection
Why do the continents move?
convection
energy
lower
The lithosphere is cracked and broken into plates. Convection…
the transfer of heat through the movement of a fluid (gas or…
Heated particles have more_____________and spread out.
The spreading out of particles causes the density to ________…
Why do the continents move?
The lithosphere is cracked and broken into plates. Convection…
convection
the transfer of heat through the movement of a fluid (gas or…
5 terms
Convection
radiation
convection
conduction
density
transfer of energy that is carried in rays
heat transfer by the movement of a fluid
heat transfer between materials that are touching
a measure of how much mass there is in a given volume of a su…
radiation
transfer of energy that is carried in rays
convection
heat transfer by the movement of a fluid
Convection
Same
Same
Same
Same
Heat
Fluid
Warm, less dense fluid rises
Cold, more dense fluid sinks
Same
Heat
Same
Fluid
Convection
Climate
Hydrosphere
Atmosphere
Weather
temperature and precipitation in an area
all of the water on Earth
the layers of gases that surround the Earth
climate at a particular TIME and PLACE
Climate
temperature and precipitation in an area
Hydrosphere
all of the water on Earth
Convection
Radiation
Insulaters
Specific heat
Condution
The transfer of energy it's like conduction because there bot…
A way to conceal energy there like conduction because they ca…
The amount of energy that it takes to raise a object 1 degree…
A way to bring an electrical charge and conduct it it's like…
Radiation
The transfer of energy it's like conduction because there bot…
Insulaters
A way to conceal energy there like conduction because they ca…
10 terms
convection
convection
density
density causes convection by....
what causes ocean currents
the movement of heat in a liquid
how tightly packed mattef (stuff) is in a specific volume(spa…
cold fluids more dense ... hot fluids less dense
global winds
convection
the movement of heat in a liquid
density
how tightly packed mattef (stuff) is in a specific volume(spa…
10 terms
Convection
Convection
Convection Currents
Conduction
Radiation
Transfer of energy by flow of material... EX: winds, fire in a h…
Convection in liquids and gases creates a current... EX: heating…
Transfer of energy by molecules bumping into one another... EX:…
Transfer of energy in forms of waves/rays... EX: sun rays, micro…
Convection
Transfer of energy by flow of material... EX: winds, fire in a h…
Convection Currents
Convection in liquids and gases creates a current... EX: heating…
Convection
What kind of matter is convecting? (Ho…
Explain how convection works
Answer these questions regarding the M…
For lakes in cooler climates, during w…
depends on substance: air molecules, water
the heat source warms the matter, it comes less dense and the…
A) Med: Warm and salty (high evaporation due to warm dry clim…
winter... A) winter air cools the surface, when it cools becomes…
What kind of matter is convecting? (Ho…
depends on substance: air molecules, water
Explain how convection works
the heat source warms the matter, it comes less dense and the…
Convection
What is convection?
What happens when a fluid is heated?
Why is heated air less dense?
What is convection like in a room?
The movement of heat in fluids (gases and liquids)
It expands and therefore becomes less dense than the colder f…
The particles have more energy and therefore move faster. The…
What is convection?
The movement of heat in fluids (gases and liquids)
What happens when a fluid is heated?
It expands and therefore becomes less dense than the colder f…
Convection
Convection
Why doesn't heat that boils the water…
Describe convection current that keep…
Convection currents stirring the atmos…
heat is transferred by movement of hotter substances from one…
Hot water is less dense. Heat that reaches the ice must be tr…
Nearby air is warmed upwards and cooler air up top moves down…
winds
Convection
heat is transferred by movement of hotter substances from one…
Why doesn't heat that boils the water…
Hot water is less dense. Heat that reaches the ice must be tr…
Convection
what are convection currents and what…
what causes convection currents in ear…
the transfer energy through empty spac…
the movement of energy from a warmer o…
flow that transfers heat within a fluid by heating and coolin…
heat from the core and the mantle itself cause convection cur…
radiation
heat transfer
what are convection currents and what…
flow that transfers heat within a fluid by heating and coolin…
what causes convection currents in ear…
heat from the core and the mantle itself cause convection cur…
10 terms
convection
why is overall heat transfer coefficie…
where is forced convection is needed a…
what is the significance of natural co…
what is the thermal resistance in conv…
Because the process of convection depends not only on tempera…
in case of fluid motion being induced by external energy caus…
there will be no change in phase , no heat generation is requ…
Rth = 1/hA
why is overall heat transfer coefficie…
Because the process of convection depends not only on tempera…
where is forced convection is needed a…
in case of fluid motion being induced by external energy caus…
Convection
Density
Mass
Volume
Liquids
The amount of material in a volume of an object.
The weight of an object.
How much space a sample of matter occupies.
Measured in millimeters. (ml)
Density
The amount of material in a volume of an object.
Mass
The weight of an object.
Convection
Climate
Hydrosphere
Atmosphere
Weather
temperature and precipitation in an area
all of the water on Earth
the layers of gases that surround the Earth
climate at a particular TIME and PLACE
Climate
temperature and precipitation in an area
Hydrosphere
all of the water on Earth
7 terms
convection
convection
1
2
3
transfer of heat through liquids and gases by the upward move…
dense, cool air heated
warm gas/liquid expands
the gas/liquid become less dense
convection
transfer of heat through liquids and gases by the upward move…
1
dense, cool air heated
10 terms
Convection
Convection
Convection occurs...
Immersion heater 1
Immersion heater 2
Occurs when the more energetic particles move from the hotter…
In liquids and gases but not solids as the particles can't mo…
Heat energy transferred from heater coils to the water by con…
The particles near the coils get more energy, so they start m…
Convection
Occurs when the more energetic particles move from the hotter…
Convection occurs...
In liquids and gases but not solids as the particles can't mo…
Convection
Convenction occurs when the more energ…
Because the particles can't move
1 - heat energy is transferred from th…
In roundish or squarish containers, be…
When does convection occur?
Why can't convection happen in solids?
Describe the 6 steps of immersion heater
Where is convection more efficient ?
Convenction occurs when the more energ…
When does convection occur?
Because the particles can't move
Why can't convection happen in solids?
5 terms
Convection
Mass
Volume
Density
How can you compare the density of sol…
The amount of stuff in something. You find mass by weighing.…
How much space a sample of matter occupies. (All matter has v…
Ratio between the mass of a sample of matter and its volume;…
Mass divided by volume
Mass
The amount of stuff in something. You find mass by weighing.…
Volume
How much space a sample of matter occupies. (All matter has v…
Convection
density
density formula
mass
volume
The amount of matter in a volume of a material
Ratio between the mass of a sample of matter and its volume;…
The amount of "stuff" in something. You find mass by weightin…
how much space a sample of matter occupies. All matter has vo…
density
The amount of matter in a volume of a material
density formula
Ratio between the mass of a sample of matter and its volume;…
Convection
Convection takes place in fluids only...
Liquids are poor conductors as their p…
Convection occurs when the more energe…
Typical Example: When particles get ho…
and conduction only in solids
and it is harder for vibrations to travel and there are no fr…
to the cooler reigon, and take the heat energy with it
The hot water is less dense and floats up
Convection takes place in fluids only...
and conduction only in solids
Liquids are poor conductors as their p…
and it is harder for vibrations to travel and there are no fr…
Convection
Convection
Conduction
Red shift
Lunar Eclipse
Concerated collective movement,of groups or aggragates of mol…
Electricity is directily ttansmitted through a substance
Happens when light or pther electromagnetic radiation from an…
When the moon passes directly behind the earth
Convection
Concerated collective movement,of groups or aggragates of mol…
Conduction
Electricity is directily ttansmitted through a substance
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