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.

Simple Harmonic Motion

You can tell when something is a simple harmonic motion because it will usually move up and down motion or a side to side motion.

Examples of a simple harmonic motion are:

1. A swing from a park because the swing moves back and forth,

2. A old clock with pendulum because the pendulum moves side to side.

3. A ball because it bounces up and down