how does the heat from the sun get to us?
107520
There are many types of electromagnetic radiation. Some we can see, which we call light. Some is lower frequency, like infrared radiation, which is the heat we feel from sunlight, or from a campfire or a stove. Some is higher frequency , like ultraviolet radiation, the radiation. Electromagnetic radiation can travel through space. It does not need any propagation medium to travel in.
12026
Good luck with your exam, this should help:\n\nConvection  is the transfer of heat by the actual movement of the warmed matter. Heat leaves the coffee cup as the currents of steam and air rise. Convection is the transfer of heat energy in a gas or liquid by movement of currents. (It can also happen is some solids, like sand.) The heat moves with the fluid. Consider this: convection is responsible for making macaroni rise and fall in a pot of heated water. The warmer portions of the water are less dense and therefore, they rise. Meanwhile, the cooler portions of the water fall because they are denser.\n\nConduction is the transfer of energy through matter from particle to particle. It is the transfer and distribution of heat energy from atom to atom within a substance. For example, a spoon in a cup of hot soup becomes warmer because the heat from the soup is conducted along the spoon. Conduction is most effective in solids-but it can happen in fluids. Fun fact: Have you ever noticed that metals tend to feel cold? Believe it or not, they are not colder! They only feel colder because they conduct heat away from your hand. You perceive the heat that is leaving your hand as cold.\n\nRadiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of radiation that is radiated through space to our planet without the aid of fluids or solids. The energy travels through nothingness! Just think of it! The sun transfers heat through 93 million miles of space. Because there are no solids (like a huge spoon) touching the sun and our planet, conduction is not responsible for bringing heat to Earth. Since there are no fluids (like air and water) in space, convection is not responsible for transferring the heat. Thus, radiation brings heat to our planet.
21533
The Sun's outer visible layer is called the photosphere and has a temperature of 6,000°C (11,000°F). This layer has a mottled appearance due to the turbulent eruptions of energy at the surface. \n\nSolar energy is created deep within the core of the Sun. It is here that the temperature (15,000,000° C; 27,000,000° F) and pressure (340 billion times Earth's air pressure at sea level) is so intense that nuclear reactions take place.
374457
yes - sunlight penetrates through the atmosphere and in converted to infrared radiation, which is trapped by gases in the atmosphere such as CO2, CH4 and N2O.
432699
Weather is essentially what we experience as a result of the interaction of RADIANT HEAT from the Sun, WATER (liquid, solid, and gas), dynamically changing and moving AIR PRESSURE zones, and the Earth's TOPOGRAPHY.
31931
It all has to do with your distance from the sun.
252829
what's the heat source?
1159681
The sun converts millions of tons of matter into energy every second via fussion processes; this energy is radiated out in every direction in the form of photons and a slew of other particles. \n\nWhen these photons reach earth, we call it "incident light". Light is easily reflected, refracted, and absorbed by many materials on earth, and at every level of interaction, energy is lost to heat.\n\nEdit - what's with all this "pan heating an egg" stuff? What does that even mean?
990446
It's true that there isn't much air up high to hold heat and pass it on to you. But you'd be surprised at how short a distance you have to go to feel a big difference in temperature. Mountains that are only several thousand feet tall have permanent ice caps. The heat from the sun goes straight through the atmosphere. Much of the UV and other radiations are filtered but the longer waves go straight through until they get stopped and absorbed by the ground. The majority of the heat is then reflected back up from the ground to fill a very small layer. Try going to the top of a very tall building on a hot day, the temperature change should be noticeable there too.
406070
these are different zones in stars one of which is the sun.  the radiation zone and the convection zone transfer heat in two different ways.  heat passes thru the radiation zone as electromagnetic radiation.  heat passes thru the convection zone as hot matter rising, cooling, falling, heating.  the radiation zone is transparant to electromagnetic radiation.\n\nhttp://en.wikipedia.org/wiki/Sun#Structure
716790
Exactly the same thing as on Earth:  Differential heating caused by the Sun's rays falling on different latitudes of the planet.  This causes the warmer parts of the atmosphere to rise.  Denser atmosphere "blows" in to fill the lower pressure areas (think wind).  If the atmosphere contains materials that can condense(water, vapor, methane, ammonia, etc.) and the temperatures are in the correct range for the atmospheric contents then "weather" occurs.
240428
yes it goes around the sun.\n\nBut the sun orbit in the universe means that we orbit alot more suns although it would take billions billion years to do so.
981269
It's from radioctivity and friction.  The gas giants also create more heat than they recieve from the sun.  The sun is nowhere the near the only source of energy in the solar system.
108832
There are three ways that thermal energy can be transmitted. (1) By radiation of photons. The photons are absorbed by materials and transfer their kinetic energy to the materials. (2) By convection in liquids and gases. The molecules of the fluid have kinetic energy depending upon their temperature. This energy of motion is transferred  to adjacent molecules.  Also as fluids heat up their density decreases and they rise against gravity in a motion called convection.  (3) By conduction in materials.  As the molecules of the material heat up, their kinetic energy of motion is transferred to adjacent molecules by collision.
53664
The heat and light in the sun is due to the vast amounts of energy produced at the core. At the core hdrogen atoms combine together to form Helium atoms due to the pressure (billions of atmospheres.) and temperature (15 million degrees C). This reaction is called fusion. \n\n  However the mass of the helium atoms produced is slightly less than the combining hydrogen atoms. This difference in the mass is coverted into energy according to einsteins equation E= mc2 (c is squared).\n  This energy is in the formed of gamma rays which reaches the earth. However what we look at is only the surface of the sun called the "photosphere" which is very much cooled than the core (just 6000 degrees).\n\nThe sun wont always be bright. Eventually as the hydrongen gets used up, the reaction will slow down and the sun will become a red giant and on further reduction will become a white dwarf and at the end it will be a black dwarf.
279812
To keep it simple, temperature doesn't travel only heat travels. It does so by conduction, convection or radiation.
1147540
Like all matter, the atmosphere is heated by the suns light.  When light is absorbed by the earth (the ground, the ocean, etc.) it is heated up (it's molecules move around faster) The air that makes up the atmosphere then absorbs some of the heat that is emitted by the earth.  When the air absorbs heat from the earth, this cools the earth.