The Doppler Effect and Searching From Grandma

Last weekend my great-grandma went missing and through miracles and prayers, she was found two days later. The thing that scared me the most was the fact that she has alzhmiers and dementia which means she doesn't remember anything. For all we knew, she could have been anywhere. I remember driving down street and after street asking everyone we saw if they had seen her. After long hours of searching, i heard an ambulance pass by. The weird thing is, i had this feeling in my heart that my grandma might be in it. Sure enough, the house phone rang and it was the police. They said that a hiker had found her car off the ledge of kaena point and her ways down in bad condition uncontious. Besides the accident, I experienced the doppler effect. As the vehicle approached me, the sound was louder than it was when it passed me. This is because the sound was occuring more frequent in front of the vehicle than in the back. This made it seem like there was a change in the pitches of the siren when in reality it just stays the same and constant. The doppler effect is the change in frequency. I do not have pictures of this ambulance because at the time, i didnt have a camera however i do have pictures of my grandma's car that we had to go retrieve. This shows how in every situation, good or bad, physics is all around us.

boogy boarding in a pool of waves

Two weekends ago i went to my friend Tami's house for her dad's birthday barbeque. We ate at her house and drove around in the car having a jolly ol' time. We also swam in her swimming pool where we had this crazy idea that someone would jump in the pool and make a lot of huge waves and everyone else would try to use the boogy board to catch the waves. This is where the physics part comes in. Travis jumped in the pool feet first trying to create the waves that Keenan would catch and try to ride. The first time, Travis' waves were tiny and Keenan had a hard time moving but the the second time, Daniel,who is heavier in weight, created bigger waves and alot of them that had carried Keenan and Travis across the pool. This means that the second time, we had increased the wavespeed by having a person that weighed more jump the exact same style and place as the first person. The greater the mass per unit length and tension had increased the wavespeed therefore creating more waves in a shorter amount of time. As the frequency increased, the wavelengths decreased. Waves are produced by vibrations and it transported the energy from the jumping boys into the water and carried everyone else from one side of the pool to the other. This is an example of a transverse wave in which the motion of the medium is perpendicular to the direction of the actual waves. This means that the water is actually moving up and down and staying in place while the waves and vibrations are being carried lateral. Physics is everywhere and its cool how we can all recognize it!