Saturday, April 30, 2016
Phase change
A phase change that i saw happen outside of class would be how i got a water bottle out of the fridge .. The water after a gpod five minutes began fogging up, then began to sweat called condensation.. This phase change shows how much the heat effects the bottle ... When it was surrounded by cold it didnt change because the molecules surrounding it were even colder than the water, but when it left the molecules were hotter than the bottle causing it to condense and become warmer throughout time
Monday, April 25, 2016
Too hot or too cold
Three things that heat up at different times are water , metal , plastic
Water: the heat once applied it instantly changes temperature becuase it is not dense its substance is very easy to go rhrough which makes it easier to warm up
Metal: it takes longer than water because of how thick it is.. The metal takes eouble thime while water heating up instantly
Plastic: it is not dense but it melts faster than the metal..
So the time rates of what goes heAting faster would be water then plastic and lastly metal
Wednesday, April 6, 2016
Doppler radar
"A doppler radar is a specialized radar that uses the doppler effect to produce velocity data about objects at a distance. It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal"
Waves show alotnof things mainly the speed and the current it is at,waves are used to show weather if the radar senses a wind gust they antenae will recieve a message saying there is an object which could be dust particles, ice crystals etc..if the object they came in contact with, the sound waves would be reflected back at an incresed frequency
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