Wednesday, February 5, 2014
Semester II Week 3 Blog Due Sunday, February 9th by 11:00 pm
We have been talking about forces for several weeks now. Take a look around you. What forces can you identify from your surroundings? What forces are acting on you while sitting, running, jumping, falling, etc.? Think about a time when you went to an amusement park, carnival, swimming pool, or Splash Town. What forces were acting on you then? Try to identify forces for an activity/situation that has not already been done by someone else. Remember to post an original comment PLUS reply to at least one other person's comment in order to receive full credit. If you have trouble posting on blogger, post your comment and reply on edmodo. Happy Blogging!
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When I take my dog out to walk, he is constantly pulling me. That is a pulling force, and also causes tension on his leash. Sometimes makes me wish I had a smaller dog. The force of gravity is also acting upon me and my dog, which keeps us on the floor.
ReplyDeleteAnthony you're scrawny. Of coarse your pit-bull is going to pull you!
DeleteI agree with gemma. Lol. And There's Also a Normal force pushing upward with the same amount of force as the gravitational force.
DeleteDont forget the frictional force acting on you and your dog as both of yall are walking.
DeleteThe forces acting on me when I'm running would be the gravitational force, normal force (when my foot touches the ground) Frictional force of the ground and the Fapp. By me to continue running.
ReplyDeleteIndeed, this Fapp force is called the traction force which allows you to run.
DeleteYeah there's a frictional force as you run.I didn't ever think there was until Mr.Soul gave us that example in class one day.
DeleteYup, Mr. Souls gave a pretty good explanation. Frictional force being the reason why we're even able to move from place to place.
DeleteFor work we have to wear specific shoes that are non slippery since I work in an area where the floor is mostly always wet and friction is very little. These shoes help us have more grip and friction force in order to not fall down. Well the other day I forgot to wear my non-slippery shoes and wore regular tennis shoes. I almost slipped after stepping in some salsa that I had dropped. There was no friction force that could stop me from falling but fortunately I grabbed onto something before hitting the ground.
ReplyDeleteThe salsa changed the coefficient of kinetic friction between you and the floor, as it became lubricated, therefore possibly reducing the force of friction, making the traction force the greater horizontal force, causing you to slip.
DeleteThe forces that act on my car while driving are those of gravitational force, normal force, frictional force, and traction force. The traction force is the one that keeps the truck accelerating, while the frictional force goes against it. On the other hand, the gravitational force and the normal force are equal.
ReplyDeleteThe gravitational force and normal force are equal. Anytime you apply a force on something it will push back with the same amount of force.
DeleteLike right now as im doing my blog in my computer class im sitting in a chair. There are three forces acting on me in the cahir right now. Gravitational force that keeps me on the ground, Frictional force that keeps the chair from moving, & the Normal force that lets the chair structure to hold me up .
ReplyDeleteThere is also a force applied by you as you sit on the chair.
DeleteDon't forget there is also an applied force of you sitting on the chair. There would also be a second applied force if you were rolling the chair.
Delete*chair. There is also an applied force as you typed the blog.
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ReplyDeleteAt morning practice when dancing our pom routine I have to do a toe touch. While in the air the forces acting on me are the force of gravity and force of drag. And my net force is downward as I come back to touch the floor.
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ReplyDeleteWhile riding the elevator at school for recycling purposes, the forces acting on me are the force of gravity and the normal force of the floor. However, these forces are not always balanced, as I may accelerate upward or downward, therefore changing the normal force I experience. This experienced force is called apparent force.
ReplyDeleteTonight, when I go to sleep, as I lie on my bed, the forces on me will be those of gravity and the normal force from my mattress.
ReplyDeleteYou will also be applying a force on the mattress as you sleep ! :D
DeleteThis is funny. I also will experience these forces tonight.
DeleteWhile in my in my library aide period as i check in books that students are turning in the forces on computer are gravitational force from the earth and normal force from the monitor that it is standing on.
ReplyDeleteOh and the desk that's supporting the computer. A lot of weight is on it
DeleteThis is also something we experience everyday being in school. I agree with Iban and there is a lot of weight upon the desk
DeleteAs I type, I'm applying a downward force into the keys of the computer's keyboard. In order to press down upon the keys, I must apply a force that is greater than that of the springs which keep the keys in their non-pushed state. Otherwise I could just rest my fingers on the keys without there being an acceleration in any direction meaning to say that the forces are balanced.
ReplyDeleteThis is a pretty cool example David.
DeleteI agree with Jaime. As I read this, I thought, "Wow, pretty cool." Also, according to Newton's third law, the keys are also applying a force against your fingers equal to the force of your fingers on the keys.
DeleteAs I toss my flag up in the air (applied force) the flag is being pulled back by a gravitational force. In this case there is no normal force because the flag is not on a surface. The only two forces on it are the applied force I gave it to spin it the air and the gravitational force puling it back down for me catch.
ReplyDeleteIs there also a drag force because the flag is in the air? The drag force is going up as the gravitu is going down.
DeleteIn my surroundings there are many forces being applied. For example, there is my sister carring his son, my sister has force of gravity but also the force of the baby pulling down. And as they stay still the net force there because of the floor.I remember when I went to Sea Word and we rode the roller coaster. At different point of the roller coaster there are different net forces because of the angles of the car and there is also friction that is going opposite of the direction. Also there is a velocy witch affects the forces on the car.
ReplyDeletethe weight of her son puts a force on her but its not quite larger than the normal force or else she would be sinkiing into the ground or something
DeleteAs I observe my bedroom I am thankful that the gravitational force on earth and the normal force applied by many of my objects cancel each other out, keeping my things in order and in place.
ReplyDeleteIf you were to live on the planet Mars for a duration of time. Your body will not be able to adjust to the gravity of the Earth so much so that you might be ill for life.
DeleteEarlier today when i was walking in the store there was a gravitational force that was keeping me on the ground. As well as a normal force (equal to the grav force) pushing upward. There was a traction force which allowed me to keep walking & a frictional force that was acting on the opposite direction.
ReplyDeleteYour traction force would be greater than the frictional force going the opposite way. If it weren't, you wouldn't be able to move anywhere. I think? Not too sure though.
DeleteWhen I swim in the pool there's a drag force acting on me. there is normal(buoyancy) I suppose,applied, and gravitational. There are always forces acting on us.
ReplyDeleteI played a game the other where drop the hammer down to ring the bell on top. Using gravtional force as when as my own applied force made it smash down to ring the gong.
ReplyDeleteAs I sit in my desk in class I am applying force on the chair and the chair with my weight on the ground. The chair and the grould are applying a same force up. the force that is pushing up is equal to the gravitational forces applied down or else I or the chair would be moving.
ReplyDeleteSince both forces are equal, the net force = 0
DeleteAna M.
During marching season, we have both gravitational and normal force keeping us steady on the ground as we march. We also have frictional force as we march between our feet and the ground, especially on the concrete. In the opposite direction, we have the traction force that we apply allowing us to either march sideways, backwards or forwards.
ReplyDeleteI agree, without gravity we would be floating in the air and wouldn't be able to march right.
DeleteAs I play the piano, and I am sitting on the piano bench, there is a force of gravity acting down on me, an applied force acting upwards from the chair. Also, my fingers provide an applied force to each key I play.
ReplyDeleteAna M.
There are also a good set of tension forces in the piano that cause the hammers being held to hit the strings to create the pitches and all.
DeleteWhen I went shopping today, as I was looking through the racks of clothes there was an applied force to move the clothes to look at the next but as i pushed there was a frictional force, as it moved, gravitational force so the clothes wouldn't float up or fall down, and normal force is what kept it up on the rack. .
ReplyDeleteWhen I go mud riding, there is frictional force from the mud. Gravitational force and tension act as I sit on the four wheeler. And also, when I am to get stuck, force of tension acts as I'm getting pulled out.
ReplyDeleteWhen I go grocery shopping with my mom I push the cart and apply a force to the cart to keep it moving, there is also a gravitational force on both the cart and I from the earth & a normal force from the ground.
ReplyDeleteWhen I carry my instrument case forces are being acted on it. One is tension on the strap to hold on to it. There are also gravitational and normal forces acting on it.
ReplyDeleteWhen I go to sleep, gravity is pulling me down and the bed is pushing me up. From the bed perspective, I guess I am applying force down on to the bed and the ground is the normal force.
ReplyDeleteAlso the bed would be applying force onto the floor !
DeleteRight now as I am walking down the street I am being acted upon the force of gravity by the earth keeping me on the floor and every time I take a step I am being acted upon a normal force by the floor and also friction that helps me walk and not slip every step I take
ReplyDeleteForcesare all around us. Like just right now, i tried to get to the computer before 11, but the force of gravity was so strong that i didn't make it on time. Theres forces acting on me whenever i enter Ms. Ego's class; Like when Ms. Ego gets mad at me and slaps me. The joke is on her, though, because my face actually exterts the same amount of force against her hand, than her hand exerts on m face, so technically i hit Ms. Ego B)
ReplyDeleteI agree with Ivan. There are a lot of forces around us, so I may being missing out on some when I describe what forces are intact in my daily life.
DeleteWell when I am at work, a gravitational force is keeping me on the ground, when I go to sleep, there is an applied force with me laying in bed and there is also a normal force while typing this with the keyboard on the desk surface.
ReplyDeleteWhen I'm writing my essay for Mr. Fons, the force I apply to the pencil causes it to leave marks on my paper ( thus, wrtiting). Also, as I am sitting down writing this essay, the force of gravty is pulling me down in my seat. Now that we've been learning about forces, I notice that forces are a vital component in our everday lives.
ReplyDelete