Like for everything else in physics there is an equation for waves. The equation is velocity= frequency times the wavelength. Velocity is determined by the medium (speed), which means that the medium determines how fast or slow the wave is. If frequency increases wavelength decreases, they have an inverse relationship. Meaning that if one goes up the other one goes down. Frequency is measured in hertz, velocity is measured in meters per second, and wavelength is measured in meters. If you were g
Lately in physics we have been talking about waves and the different types of waves. We learned about a transverse wave which are perpendicular to the direction of wave travel. Besides transverse waves we learned about a longitudinal wave which are parallel to the direction of wave travel. Another type of wave is a mechanical wave, for a mechanical wave to work it must have a medium. Sound is a type of mechanical waves they need a medium for them to work. Which is why in space you can not hear s
Interference is when two waves are coming towards each other and you want to determine what happens when the two waves meet. Interference occurs when waves in the same medium, meet at the same time, and at the same location. Superposition is when you add the two waves together to find out what happens to the amplitude at the point that they meet. A constructive interference is when the amplitude is higher (bigger) then the two initial waves. The destructive wave is when you add the two amplitude
In physics we learned about electric current, resistance and conductivity. Electric current is the flow of positive electric charge and the units are amperes (A) which is equal to one coulomb per second. To find the electric current you divide coulombs by the time. An example to find the electric current is when you are given 1000 coulombs and .6 seconds. Divide 1000 by .6 and you would get 1667 amperes. Conductivity is how well a material conveys electric charge. Conductivity depends on the num
in class we just learned about the rules of suction. Suction is when the something of production becomes a partial vacuum by the removal of air,At dairy queen they have this motto where the blizzards are so thick that you can flip the cup over and the item in the cup won't fall out. When they bring your order over, they say what it is and then hand it to you upside down just to prove that they are living up to their motto. As they are doing so they say that it is because of the thickness of the
I love to ski! Whenever i can find an opportunity to ski i will ski. What is interesting though is that physics is applied when you ski. When you look at skiing you can apply Newton's three laws the first law being an object in motion will stay in motion and object at rest will stay at rest until acted upon by an outside force. a skier is able to go downhill without stopping, gravity is what puts the skier in motion and the skier will not stop until an outside force acts upon it. An example of o
Because i am an athlete, i really enjoy being outside and being active. Even in the winter, i like to be outside and the other day i was walking by the town hall and i saw the ice rink. There were some pretty good skaters on there, in the corner i see someone making figure eights, just like a professional ice skater would do. I always have admired ice skaters, especially those in the winter Olymics, they are able to turn so quickly in a certain amount of time. One of the units that we have lear
Lately in class we have been talking about work and energy and when we can see it being applied. Work is the process of moving an object by applying a force, so if we are pushing someone and they end up falling in that direction then you are applying work to them. When I think of work and applying a force I think a weight lifter uses a lot of work, they apply a force to apply to the weights to be able to life them. If a weight lifter is lifting a 100kg weight and their displacement is 2 meters t
I swim every day and I just realized there is so much physics in swimming. Whenever I take a stake in the water and equal and opposite reaction happen. Whenever I take a stroke the same force is pushing back on me. Which makes me move forward. The same thing happens when I take a flip turn and witches helps me to jump off the block. Whenever I try to Brest stroke kick I always slowly sink, I just think I donâ€™t do it fast enough. Gravity makes me fall but because of the water I donâ€™t fall as
I was home watching the avengers the other day and in one of the last seen the bad guys come frying out of the sky using a teleport and there is no way a teleport can be created. The bad guys also came flying out of the sky at ridicules speeds and there is no way they could adjust to our atmospheric pressure of agust to our gravity. They would have not been able to pull up in time without hitting the ground.
Playing volleyball has a lot of physics. For example the serve, now when I survey toss the ball really high and I try to contact that ball at the highest point and at that highest point is where the ball stops for a split second before it starts to fall again. During hitting lines I also try to do the same thing when the setter sets the ball it travels a certain distance and when the ball reaches it peek it is a lot easier to hit, and when there is no block to try and stop the ball from landing
I was watching one of the old superman episodes the one when superman catches Louis lane right before she hits the ground and goes (skerplater). The episode starts out when Louis lane gets pushed of a skyscraper by a bad guy. And right before she hits the sidewalk superman comes swooshing in and catches her. This is impossible! Physics shows us that an objects greatest velocity is the moment right before she hits the grounds. Lois lane would have been cut into 3rds. Also because supermanâ€™s arm
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