Too Hot/Too Cold
3 things that heat up at different rates is Metal, Rubber, and Laundry Dryers. The Metal heats up the quickest because heat moves much faster in the metal which its a conductor. Rubber takes a long period of time to heat up (but eventually it will burn) I think rubber heats up slow because rubber is an insulator and insulators takes longer to heat up since heat moves much slower in them. Laundry Dryers take very little time to heat up because in the dryer its already producing heat while it spins around the clothes. Heat is being transferred to the wet clothes making the clothes dry up, and making the dryers spin make the clothes dry up even faster!
Tuesday, April 28, 2015
Tuesday, April 14, 2015
Doppler Radar
Doppler Radar
The doppler weather forecast is used to research about weather so that people can make predictions on precipitation, to calculate its motion and to estimate its type of rain hail snow etc. People mostly use pulse doppler-radar so that they can determine the motion of rain dopplers. How waves are used to show that weather is happening is by we see the waves in colors of the rainbow (ROYGBIV). Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. A Doppler Radar is combined with satellites which allows forecasters to provide us with upcoming thunderstorms, tornadoes or any other storm that could cause damage. Doppler Radars work by the satellites measuring the changes in the frequency of the signal the radar gets to conclude the wind.
Sunday, April 5, 2015
Interference
Interference
The difference between a constructive and a destructive interference is that a constructive interference is the crest of a wave that is super positioned with another crest but a difference wave it can also be a trough with a trough and all of this will allow to increase the amplitude. A destructive interference is when the crest of a wave is also super positioned with the trough of another wave but its to decrease the amplitude. An example of something that interferes and makes something smaller is when hot water is in contact with snow. The hot water makes contact with the snow making the snow dissolve into the ground. An example of something that interferes with and makes it larger is water and a plant. The plant needs water to grow which makes the plant increase in size. It becomes larger than it already is.
The difference between a constructive and a destructive interference is that a constructive interference is the crest of a wave that is super positioned with another crest but a difference wave it can also be a trough with a trough and all of this will allow to increase the amplitude. A destructive interference is when the crest of a wave is also super positioned with the trough of another wave but its to decrease the amplitude. An example of something that interferes and makes something smaller is when hot water is in contact with snow. The hot water makes contact with the snow making the snow dissolve into the ground. An example of something that interferes with and makes it larger is water and a plant. The plant needs water to grow which makes the plant increase in size. It becomes larger than it already is.
Standing Waves
Standing Waves
The lab what we did today in class was Miss Reid was trying to do a certain wave. The slinky was at two ends one in Miss Reid's hand and the other was at the laptops. Miss Reid swing the slinky up and down for 10 seconds. We had a specific wavelength which was measured in meters and the frequency (how many times Miss Reid swinged the slinky up and down for 10 seconds). Then at the end we measured the speed (frequency/10 seconds) and as a result each of them where 9.6 m/s. What I learned is that it doesn't matter the wavelength or frequency because at the end you will get the same results (depending on how long you swinged the slinky. I learned that a transverse wave is a type of wave where the particles are perpendicular meaning they go across. A compression wave is a type of wave where the particles move parallel to the direction of the energy. We got to see examples of transverse waves and compression waves.
The lab what we did today in class was Miss Reid was trying to do a certain wave. The slinky was at two ends one in Miss Reid's hand and the other was at the laptops. Miss Reid swing the slinky up and down for 10 seconds. We had a specific wavelength which was measured in meters and the frequency (how many times Miss Reid swinged the slinky up and down for 10 seconds). Then at the end we measured the speed (frequency/10 seconds) and as a result each of them where 9.6 m/s. What I learned is that it doesn't matter the wavelength or frequency because at the end you will get the same results (depending on how long you swinged the slinky. I learned that a transverse wave is a type of wave where the particles are perpendicular meaning they go across. A compression wave is a type of wave where the particles move parallel to the direction of the energy. We got to see examples of transverse waves and compression waves.
Subscribe to:
Posts (Atom)