Thursday, November 24, 2011

Egg Drop Reflection



For my physic’s blog post this week, it’s going to be about our egg drop experiment. To start off, this was a hard task considering the fact that my partner and I have never done one before. We spent hours in Target and hours at home trying to prepare and put together different items in hopes of protecting our egg. In this picture, you can see what our experiment looked like after the drop. Our egg sadly broke as a result of the fall. It’s hard to see, but the egg definitely, full-on, cracked. To protect our egg, we used 5 bags of bubble wrap and then stuffed the inside with timothy hay (the kind of hay rabbits eat). We thought that the thick padding of hay would absorb all the momentum from the drop but we were proved wrong. We were sad that our design failed because we spent a lot of time thinking about it, including going back to Target and test dropping it off their fire exit ladder at 9 at night. Although we may have not gotten the extra five points, I learned that there’s way more simpler ways to protect the egg…including just two pieces of foam with a rubber band holding the egg in the middle. I liked this experiment because I hadn’t done one like it before and it made me think outside the box. 

Friday, November 18, 2011

Impulse

                  

This week for my physics blog, I’m going to talk about impulse. Impulse is also known as the change in momentum and is directly related to how much force/momentum one feels after the collision. The more force that’s applied to another object, the greater the change in momentum and vice versa. Impulse can be calculated as I = (F)(Δt) where “I” equals impulse, “F” equals force and “Δt” equals change in time. My picture displays impulse because these karate kids display a greater amount of impulse because they went from rest to punching the air very hard. Although you can’t really see it in the picture, both their hands and legs have moved from a resting position. 

Saturday, November 12, 2011

Inertia in Motion


For my blog post this week, I took a picture of my friend at a mini-golf place we went to this weekend. I think this picture shows an example of momentum because with the golf club, he has to create the right amount of momentum needed to get the ball into the hole. The mass of the ball is very light and since he’s not that far away from the hole, he could either risk it and hit it so it has a fast velocity, or he could try and tap it with a small velocity to see if that would work. I can’t remember, but I think he tapped it with a small velocity, but the momentum of the ball became perfect so it landed right in the hole.

Sunday, November 6, 2011

Momentum

Without looking at a dictionary definition, I define momentum as the “muchness” of something. I always think it has something to do with magnitude, but after actually researching the definition, I found it’s kind of like it…but at the same time completely different. Momentum is defined in the dictionary as the quantity of motion of a moving body, measured as a product of mass and its velocity. To me this basically means the speed of a moving object and how powerful the speed of that object is. Also, I concluded that the equation would have to be M (momentum) = m (mass) x v (velocity). This is the equation you would need if you wanted to find any of these three.