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EarthScience
Question | Answer |
---|---|
what is one term that means the same as a hurricane | typhoon cyclone |
where do hurricanes form | in the ocean |
what are the three requirements for formation of a hurricane | warmth, disturbance of air, a water source |
what is the african easterly wave | it is caused by the difference in temprature of the sahara desert and its adjacent gulf, causing many hurricanes to form |
conduction | The process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material |
convection | The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat |
where the energy for a hurricane comes from | The warm air that has risen to the sky eventually cools, creating clouds. The continuous motion of warm air rising and cooling creates a swirling motion as new air molecules begin to get pulled into the warm stream. |
what is humidity | how much water is in the air |
which can hold more water; warm or cold? | warm |
waht piece of equipment is used to measure humidity | psychometer |
waht is dew point? | the temprature it must be for precipitation to occur |
waht are condensation nuclei | particles in the air such as smoke and gas water vapor can form on |
waht is air pressure | how much weight is on an object affected by wid speed elevation water content and temprature |
high density = _____ air pressre | low |
warm temprature = _____ air presure | low |
what measures air pressure | barometer |
bad weather | low air pressure |
if air pressure goes up then wind speed goes | down |
at the equater where there is no wind is called the | doldrums |
convection currents | warm air at equater rises cools and goes back down then process repeats |
air mass | body of air with same properties throughout |
front | barrier between 2 air masses |
air mass over an ocean | maritime polar |
why is there precipatation at a front | a front moves in warm air gets pushed up and cools and is no longer able to hold as much water vapor |
fronts only occur | between to air masses |
humid and dry air mass | continental tropical |
early atmosphere was made up of 2 deadly gases | ammonia and methane |
ozone is made of | oxygen |
atmospheres layers r divided by | temprature |
the layer of the atmosphere that contains earths weather | troposphere |
layer that protects earth from meteors | mesosphere |
ozone is found in what layer | stratosphere |
two layers of thermosphere | exosphere and ionosphere |
layer satilittes orbit | exosphere |
front is moving the way triangles/squares r facing | yup |
triangles mean ___ front | cold |
warm fornt has | gentle rain for long timr |
cold front has | heavy rain for short period |
cold front catches up to another and thius forms | stationary front |
front alwyays has ___ pressure | low air |
cold and wet air mass | maritime polar |
big bang theory | universe came form nothing and is expanding outward |
how can we tell the universe is expanding | red shift |
doppler effect | as an object moves closer the pitch gets higher but as it gos by pitch lowers |
hubble telescope gets better pictures because | it is outside our atmosphere |
nebula | cloud of dust and gas |
what force pulls the dust and gas together to become a protostar | gravity |
process that must occur for an object to become a star | main sequence |
during main sequence: hydrogen to | helium |
to become giants/ supergiants helium gas is converted to | carbon |
nuclear fusion | atoms fuse together to form other elements |
when a star explodes it is called | a supernova |
why is a black hole black | nothing not even light can escape |
if right is light its | waxing |
why do u feel hotter in warm weather when the humidity is high? | your sweat doesnt evaporate |