Which states of matter does radiation affect?
I have a quiz I need to study for and i need to know which states of matter each method of energy transfer affects. For example, convection applies to liquids and gases while conduction apples to solids, liquids and gases. So which one(s) do(es) radiation affect? Thanks!
What happens when antimatter and matter "collides"?
Annihilation.Well, I may be overreacting with my word choice, but let me explain.Antimatter is essentially matter but made of anti-atoms (I'm assuming you're talking about atomic antimatter). Upon collision, the antimatter will turn the complete mass of the matter to energy, which will spew out in the form of gamma radiation (light in its highest form of energy), et al.Let’s take a comparison between an antimatter bomb and an atomic one. We know the possibilities of the latter, the largest of which - Tzar bomba - was 8m long and weighed 27,000 kgs, and had the destruction capabilities a thousand times more than what destroyed Hiroshima. Comparatively, an antimatter bomb a fraction of that size would have the same energy release as that atomic bomb This is because while atomic bombs convert the binding energy of a nucleus into free energy - essentially a small part of the mass, antimatter converts all mass into energy.Assuming of course we are capable of constructing an antimatter bomb.While we do create short-lived anti-particles on the subatomic level and such, a sustainable form of an anti-atom is unlikely. While we cannot really experience the collision of antimatter and matter without consequences in real life, we can experience the collision of antimatter particles on a subatomic level, and we do everyday.We use such collisions in hospitals.PET scans or Positron emission tomography scans uses the anti-particle of an electron- positron - to collide with an electron that creates a very small and short lived gamma ray burst which is then picked up by the computer and scanned for abnormalities using a radioactive tracer attached to a glucose bond.So, in conclusion; the collision of antimatter and matter, will result in an energy burst and ergo annihilation (based on scale) .Note: This answer is exaggerated a bit. Antimatter is complex, and I can't possibly weed out every possibility of a collision.
Is convection possible in solids?
Convection is heat transfer by mass motion of a fluid such as air or water.Convection does not occur in solids because the particles within are too tightly packed to facilitate the process. Convection requires actual movement between the particles within a substance.:)
What are convection currents and why are they so important?
Convection currents are caused by the expansion of a liquid, solid, or gas as its temperature rises. The expanded material, being less dense, rises, while colder, denser material sinks. Material of neutral buoyancy moves laterally. Convection currents are important because they drive plate tectonics, influence the wind and ocean currents. Plate Tectonics Convection currents are responsible for the movement of tectonic plates on the crust of the Earth. Large convection currents in the aesthenosphere transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries. Wind Convection currents arise in the atmosphere above warm land masses or seas, giving rise to sea breezes and land breezes, respectively. Wind patterns are large scale convection currents in the atmosphere. If there is a warmer spot on Earth, convection currents are set up resulting in wind as the air circulates. Ocean Ocean currents have the same effect as wind but, in the water rather than the atmosphere. Heat in one portion of the ocean sets up convection currents which result in ocean currents as the water circulates to transfer heat energy. Warm water from the Equator tends to circulate toward the poles, while cold polar water heads towards the Equator. Check out the links below.
Real time application of convection and conduction?
Convection occurs when, lets say, you work at an automobile factory. When you test a car engine and you stand a few meters away, you still feel the heat energy from the engine. The same is true for a camp fire. Conduction usually involves solids, though other states of matter can also conduct heat. For example when you fry a pancake on a saucepan, the pan is conducting the heat from your gas stove to heat up the pancake, thus cooking it. For extra information, should you need it, radiation is the transfer of heat through a vacuum. The prime example of radiation is the sun, emitting great amounts of heat which travel through space via radiation.
What is the formation of convectional rainfall?
Convectional rainfall happens when convection of warm moist air happens. When a surface of earth gets heated up makes evaporation more and the warm moist air raises. As the air ascends it gets cooled and form convective clouds. Once the clouds reaches its saturation, it precipitates rain.Convective rainfall is common in tropics. It is characterized by rapidly changing intensity and over a smaller area as the convective clouds are more vertical than horizontal.In tropics, convective rainfall results in hail storm whereas in mid-latitudes it results in cold fronts, squall and warm fronts.
What is the different between conduction and convention?
There are three ways to transfer heat: conduction, convection, and radiation. Conduction - Transfer of heat through molecular contact. Basically molecules moving faster hit molecules travelling more slowly and transfer some of their energy, causing the slower ones to speed up. Convection - Transfer of heat through fluid motion. "Chunks" or "parcels" of liquids or gases that are hotter and less dense rise and cooler ones sink, distributing heat much more efficiently than would occur through conduction only. Radiation - Substances emit electromagnetic radiation based on their temperature. This can be absorbed by other substances, heating them. Notice that for liquids and gases, convection can only occur AFTER conduction or radiation heats or cools them.
How does evaporation cause cooling?
Each molecule in the liquid phase is attracted to the other molecules in the liquid. When a molecule changes phase ( evaporates) it has to break all those intermolecular forces so it can escape. Only the molecules that have sufficient kinetic energy can do this. These high energy molecules leave to the gas phase and the remaining molecules are the ones that did not have enough energy to evaporate. This, the average kinetic energy of the molecules in the liquid left behind is lower that it was before the hot ones leave. So, evaporation “cools” what is left behind because the heat was used up breaking the hotter molecules out into the gas phase.On a hot day you sweat. That sweat evaporates and carries away heat. Your body gave that heat to the sweat ( water) so your body cooled off. This is important as a means by which your body can avoid overheating.