Physics Concepts in Movie

GRAVITY

            Every year there always many genre of movie coming into the cinema. Most of the  movie coming into the cinema has a good quality of movie but, some have a bad quality of movie. The purpose that I write in this blog is I want to share one of my favourite movie that I watch many times which is Gravity in 2013. The actor of this movie is Sandra Bullock and George Clooney. Why I love so much about this movie is about there are many physics concept that is apply in this movie which I can watch while learning. The most unforgettable scene which is when Ryan Stoned that is acted by Sandra Bullock had an hallucination in the ship when she left alone because all of their friend already lost in the space. She saw her friend Matt Kowalski acted by George Clooney fly in the space. She open the spaceship door, when she open it there is nothing sound that is heard. This scene contains physics concept why there is no sound on the space because sound travels in waves like light or heat does, but unlike them, sound travels by making molecules vibrate. So, in order for sound to travel, there has to be something with molecules for it to travel through. On Earth, sound travels to your ears by vibrating air molecules. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there. The other scene that contains physics concept is when Sandra Bullock using her jetpack to travel in the space to repaired the spaceship. The physics concept involve in this scene is when she using the jetpack. Jetpack using conservation of momentum to make the person using it to move. The expelling gas from a pressurized container still results in a force, and according to Newton's Third Law, there is an opposite force pushing the astronaut away. This can also theoretically be accomplished by throwing an object to propel yourself away from the direction of the thrown object. There are many others physics concept that involve in this movie but that only I can explain from this movie.