Sunday, September 26, 2010
Newton's 1st Law
At this point in the unit you have seen multiple demos and examples of Newton's First Law. What I would like you to do is have a discussion about how Newton's First Law is relevant to your life - where do you see it in action? Be creative. You may NOT use any of the examples that we have used in class or that have been on worksheets. Also, be sure to read your classmates comments, repeated ideas will not be counted for credit - in other words only the first person to state an idea gets the points for it.
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Adam Depkon
ReplyDelete1/2a
Newton's First Law is relevant to my life because it happens everywhere. One thing I can relate it to is something we do in football practice. We have this thing called a one-man sled and it is a pad with a metal sled at the bottom. What we do with it is practice tackling. We run up to it, hit it for about 5 yards and bring it down. That relates to Newton's Law because the sled is at rest (there is no force exerted on it). Our bodies moving toward the sled is the object in motion and once we hit it, our force we've exerted on it will cause it to move backward because its mass can't resist the mass of our bodies coming at the given speed.
Matt W 2b-3
ReplyDeleteNewtons first law relates to my life when walking to school everyday pushing force down on to the sidewalk. Another one is at wrestling after scholl we lift weights and we are pushing a force on the weight to make it move.
Newton's First Law can relate to every day life for everyone. If a car is parked, it is at rest. It will stay at rest until it is acted on by an unbalanced force. That force would be when you step on a gas pedal. If the car was floating in the air it would stay at a constant speed, but since it is on the ground, there is friction which slows down the car until it stops.
ReplyDeleteI use physics in my everyday life being a wrestler. However, Newton's first law could be the most important. In a typical wrestling match I will use inertia to overcome my opponent. I will attempt to postion my body in an effeciant wayto make sure that I have more of my mass close to my center of gravity. Due to this postition my opponent will have to use more inertia to move me. I will do whatever I can to use my inertia back at him, and cause overwhelming amounts of friction so that I can overcome him. This is the premise of the sport and I use it everyday when perform moves at wrestling.
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ReplyDeleteAlannaW. P.2b/3
ReplyDeleteNewton’s first law relates to my life everyday when I go to dance. For warm ups we have to stretch and put a force against the walls and floor in order to get a more efficient and effective stretch. When were dancing we have to create an even motion throughout the dance. Also when we practice turns and leaps the shoes we must wear create friction against the floor in order for us to stay balanced.
Newton's first law is used everyday, for me, when I go to cross country practice to run. My feet work as a force against the side walk and pushes me forward using friction. The faster I go the more I fight against the friction. This is sometimes how I get shin splints from running.
ReplyDeleteoh yea its Ciara G.
ReplyDeleteKatherine S.
ReplyDelete1/2 A
Newton's first law relates to my life, when I ice-skate. The blade of my skates rub against the ice, which is smooth, and causes much less friction than someone's feet on a dance floor. This way, I can glide forward quickly without having friction slow down my motion. You need friction to start and stop on ice. When I shave the ice with my skates to stop, friction is the reason why I don't keep going. The law states that an object will stay at rest or motion until an unbalanced force is acted on it. In skating, there is not much of a force acted on you when you are in motion, but you can use force to stop yourself on the surface of the ice.
John O. Newtons first law states that an object in motion or at rest will remin that way unless it is acted upon by another object. When a car is maintaining a constant speed, it will remain that way unless you press that gas/brake pedal or if it is hit by another car. Friction occurs between the tires and the ground. Friction allows the car to control itself and not spin out like in the Friction Video we watched in class. When you let go of the gas pedal, the car will eventually come to a stop because the friction between the tires and ground is increasing.
ReplyDeleteJohn O. Newtons first law states that an object in motion or rest will stay that way unless acted upon by another object. This related to my life because when we go to wisconsin in the summer and go tubing, the tube is always moving unless the boat stops. The motion of the tube is controlled by the boat because it is connected to the boat by a rope. The tube will always be affected when the boat moves.
ReplyDeleteCarly B. period 7-8a. Newtons first law is in my everyday life because of sports. For example, I run on cross country and do gymnastics. Both of these examples involve my arms and legs pressing against the ground or a mat in order to complete the trick or finish a race. This means my body is exerting a force on the ground.
ReplyDeleteNewtons First law relates to when I swim. The buoyancy force pushes me and gravity keeps me on the surface. To make my self move I use my feet to kick( applied force) and the water that I am breaking is the friction.
ReplyDeleteKristen D period 1-2a
ReplyDeleteNewton's first law is everywhere you look. One example of an object at rest will stay at rest until acted apon by unblanced force could be a book on a table until a person pushes or picks it off a table on accident or on purpose. The book being the object at rest and the person is the unbalenced force that picks up or pushes the book off a table. There is also friction between the book and the table.
frankie p 7-8a
ReplyDeleteI use newtons first law in baseball becasue when you are at bat and the ball is thrown towards you the ball will continue to go unless something stops it such as the bat or the catchers mitt. The bat has a greater inertia so if the bat hits the ball it makes the ball go far because of the speed and higher inertia.
Alberto r. 7-8a
ReplyDeletethis is alberto from frankies account because mine wasnt working.
I use newtons 1st law in football. When your hitting someone thats not moving. and your coming at a constant speed, hes going to move. newtons 1st law says something will stay at rest or at motion unless acted upon by an unbalanced force. Also when you hit someone with more inertia its going to be harder to bring them down.
1-2a
ReplyDeleteI use Newtons first law in dance, when i do a jump i put a lot of force on the groud so i can get up higher and when i land i bend my knees and put more force on the ground. and just like Alana said, we need to wear certian shoes to put friction on the ground so we dont slip and fall.
Frank D
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Newton's First Law is relevant in my life. Whenever I go visit my baby cousin, he always asks me if I can pull him while he is in his red cart. My cousin gets in his cart but won't go anywhere because he is at rest. In order for him to move, I woould need to pull the cart by it's handle. This is an example of Newton's First Law because my cousin is staying at rest in his wagon until another force acts on it. I was the force acting on it by pulling the cart.
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ReplyDeletebeth h
ReplyDelete2b-3
i use Newton's first law every time i am dancing. while i am waiting for my turn to dance with the music in front of my teacher, i am standing still or at rest. then when it is my turn, i exert a froce on my legs and feet in order for them to move my body and dance around the studio. this is am example of the first law because i am at rest in the beginning and then when it is my turn, i exert a force on my feet to be able to move around the room.
I use Newtons first law when I play water polo. When I am sitting in the water waiting for the game to start I am at rest. When the game starts I exert a force on my legs because I have to swim to get the ball.This is an example of Newtons first law because I am at rest then I exert a force on my legs.
ReplyDeleteIzabella 7-8a
I use newtons first law everyday on and off the ice. On the ice, I am a goalie and my movments consist of alot og liding moves. Like Katherine said unless my skates are acted on by another object I wont stop. Off the Ice I spend my time in the weight room lifting weights. This relates to newtons first law, because the weights are going to move offof the rack unless they are moved by a unblalanced force like me.
ReplyDeleteBrendan S. 1-2A
ReplyDeleteI use newton's first law in my everyday life when I'm walking up a flight of stairs. I exert a force on my legs to go up on a stair so I can go up the flight of stairs. If I just kept walking straight into the stairs, I would trip and fall. When you pick your leg up, you exert a force so your leg will go up as well.
When I am playing hockey I am larger than most of the oppenents we go up against, so when I make a hot I have to make sure that I am moving at a faster rate of speed than the oppenent making sure I take them out of the play If possible. More inertia means I am harder to resist when I hit them.
ReplyDeleteAshling C. 2b-3
ReplyDeleteI play golf and i was thinking of ways that Newtons first law relates to golf. This is what i came up with: when the club comes down on the ball it exerts a force on the ball. If you hit the ball right it can go in different directions and if you put more force on it then it will go farther.
When I ride my bike the disc brakes cause friction which allows me to stop. The unequal force cause my enertia to flip me over. Risistance to change direction in motion
ReplyDeleteMike R.
ReplyDeleteWhen I skate on ice there is friction between the blade of my skate and the ice so I'm able to stop and change direction.