Elastic vs. Inelastic

Elastic collision - objects bounce off each other after colliding
Ex: kicking a soccer ball is an elastic collision because the ball just bounces off
Inelastic collision - objects stick together after colliding
Ex: When two cars hit each other in a crash they stick together

Phase change

A phase change i saw was when i make coffee and i boil the water and it starts to create bubbles and if i leave the water boiling to much all the water will be gone.The reason the water bubble is because it is evaporating and evaporation is when a liquid changes to a solid.If i let the water boil to long all the water will change into a gas. This is a phase change i saw out of class.

Too Hot/Too Cold

Metal is conductor and heat transfers faster through it so that's why metal heats up fast.

Rubber is an insulator and it is harder for heat to travel through an insulator that why it heats up slow.

Plastic is also and insulator and that why it doesn't heat up fast, it take more time for the heat to transfer. 

Doppler Radar

 Doppler Effect is the increase or decrease in the frequency of light, sound or other waves as the source and observer move toward or away from each other. A Doppler Radar detects the wind dirrection, wind speed and precipitation's force. An example is 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. People mostly use pulse doppler-radar so that they can determine the motion of rain dopplers

Interference

The difference between constructive and destructive interference is constructive increases amplitude and the destructive interference decrease amplitude.constructive interference is when the crest of a wave is super-positioned with the crest of another wave to increase the amplitude. An example is when you plug in something into speakers to make it sound loader. Destructive interference is when the crest of a wave is super-positioned with the crest of another wave to decrease the amplitude. Headphone is an example of a destructive wave because it cancels out noise. 

Standing Waves

The lab we did today was we created waves. We counted how many waves we needed then we counted how many times the waves hit. Miss Reid was swinging the slinky up and down for 10 seconds. We had a specific wavelength which was measured in meters and the frequency . I learned that a transverse wave is a type of wave where the particles are perpendicular meaning they go across

No Effect

People say that violent TV make kids more violent through out their life. they think that violent TV affects the behavior of children. But studies have shown that violent TV actually doesn't affect children behavior at all. this is something that people think showed have an affect but it doesn't.