Yesterday in science class we had looked at the different types of waves. To observe them, we were given a slinky, and we stretched it between two people at a distance of about 4 metres. We waved it back and forth in both types of waves. We made transverse and longitudinal waves. We observed that either type of wave you do, it will reverberate between each partner a few times back and forth. When it reached the opposite partner, there was still energy, so it turned around and went back to the other partner. We also observed that if the partners lift up their hand to a bit off the ground, the wave reverberated many more times. Here below is the video that I made documenting our experiment. To observe transverse waves, we waved the slinky up and down, or side to side quickly. To show longitudinal waves, one person repeatedly moved their end of the slinky forwards and back.
In conclusion, I believe that through this observation, most of us can much better understand the basics of waves.
0 Comments
Joker's Classic is an annual basketball tounament that takes place in John Oliver Secondary, and last science class we were assigned to answer: Name three body systems used in basketball and describe them. The three systems I chose were the muscular system, the skeletal system, and the respiratory system. I will now explain what each of them does during a basketball game. Muscular System The muscular system is what makes your body parts move. It moves your legs when running up and down the court, taking jump shots. Your arms are moved by the muscular system when players take shots, make passes, or are dribbling the ball. Your muscular system is even working when you are simply wlaking, so imagine how hard it is working when playing in a basketball game. Your legs are moving, your arms are moving, your neck, your hips, etc. Skeletal System The skeletal system works with the muscular system to move the body, and vice-versa. Even in everyday life, not just basketball, but your skeletal system is very vital, as most systems are. If you didn't have a skeletal system, your legs wouldn't be able to support the weight of your body, and you would flop to the ground. Your bones are pulled by the muscles near the joints of the bones, so both of the systems work together to acheive movement in whatever body parts. If no one was moving in a basketball game, not only would it not be interesting, but would defeat the purpose of the game. Your muscular system is being worked very hard while playing a basketball game, and goes under a lot of stress from running and jumping. Respiratory System
As the players run along the court, take shots, jump, etc. their respiratory has to compensate for all the moving they're doing. When players get tired, they start breathing heavy, due to the lack of air from all the moving. The more they run, they start breathing faster, and in some cases will hyperventilate. The respiratory system has to control all this breathing, changing gases, transporting them from inside the lung to out or the other way. With all the stress on the lungs from so much breathing, the respiratory system does a lot of work. That will be the end. Thanks for visiting my blog! In science class we had been studying the different body systems, particularily the immune system, and over the course of the past few classes we watched the movie Osmosis Jones. Since for most of first term we had been studying the body systems, the comedy in the movie was quite understandable and funny.
We were assigned to answer questions about the movie, so I will do so below. How does Osmosis Jones exemplify a white blood cell? Osmosis Jones exemplifies a white blood cell as he goes all around inside Frank's body on the look out for any antigens or pathogens etc. that might harm Frank's body. If he sees one, he will kill them with antibodies. (As any white blood cell would do.) This helps to keep Frank's body from getting any diseases or such. How does Drix affect the body? Is it simialar to real cold pills? Drix goes around the body with his ice-arm-blaster thing and freezes any antigens or pathogens etc. that he may see. He helps aleviate sore throat, cough, or anything that most cold pills may do. I do believe that Drix is simialar to a cold pill as he may go through a slightly different proccess, he inevitably gets the same result as a regular cold pill would. How do Frank's health habits create a situation not only for infection but for poor response and recovery from that infection? Frank's health habits for one are very bad. Not only does he eat generally unhealthy, but he also doesn't care how dirty or unsafe to eat some of his food is. You could say that as a result of eating often, he has grown accustomed to feel impulse of eating food that he really wants no matter the grim concequences, for example that of which he had faced in the movie. In the movie, Frank really wants to eat his egg. He works at a zoo, and a monkey took the egg from him. In all the clutter of Frank trying to retrieve his egg that he desired to eat, the egg then fell to the floor of the monkey's cage. Frank being clueless of the concequences, went ahead and ate the egg. As one would imagine, Not only the egg being in possesion of a monkey, but the egg falling to the likely very dirty floor of the cage would carry lots of germs, bacteria etc. Due to his bad health habits already prior to this, it made it incredibly difficult, nearly impossible to recover from certain diseases such as red death. Luckily due to pure coincidence, in the end of the movie, Osmosis restored Frank's DNA at the last second. How does airborne allergen affect the body? What is the body's defence against this situation? What is the body's response to this situation if your defence tactics don't work? Airborne allergen can make you sick, or if in a small amount perhaps just sneeze. In many cases they will only cause you to have a minor allergic reaction, such as a sneeze, runny nose, cough, etc. The body defends itself from this by producing antibodies to kill these allergens. If these defences don't work, your body will likely result in a severe allergic reaction. This might be your throat closing up, or rash. What is the purpose of a fever? A fever is when your body tempurature is rising. It is typically uncomfortable for the person who has the fever, but it isn't all that bad. It is your body working to keep away any diseases. In higher tempurature, not only is it harder for antigens and pathogens to be present, but it makes it easier for white blood cells to fight them off. What would it mean for red death to be more infectious and dangerous than ebola? It being more dangerous would mean that it is not only more difficult to treat, but is also very sudden and deadly. By that I mean that it starts out with typical cold symptoms. With this in mind, the person infected would be clueless as to the deadly virus in their body, and nothing would be done until it's too late. By the time the infection becomes obvious, it would have already spread throughout the body and there wouldn't be enough time to cure it. That is the conlusion to my blog post. I found the movie very entertaining and would like to watch it again. Thanks! |
Archives
May 2017
Categories |