Egg Drop

This week my blog post will be about my egg drop project. My partner was Rachelle and in preparation for the egg drop project I spent a whole day after school at her house. We walked around in Target for two hours after brainstorming some ideas. We decided to use bubble wrap as our bag or container because that absorbs a lot of shock. Then on the inside we decided to use Timothy hay because we noticed that if you packed it in tightly, the egg on the inside wouldn't move. We also noticed that by stuffing the bubble wrap with something, it'd made the shape of the bubble wrap rounder which would've helped to absorb more of the shock. Unfortunately after all our hard work, the egg cracked anyway. It most likely cracked because it bounced, which was what we were trying to avoid entirely. I realized we could've done much more simpler things or even used cotton balls to stuff the bubble wrap instead of hay.

Collisions

 

I learned that there are two types of collisions when it comes to momentum. One is elastic collision and the other is inelastic collision. An elastic collision is one that is bouncy; the initial kinetic energy is conserved, meaning that the momentum transferred in from one object is equal to the transferred momentum out the other object. An inelastic collision is one that is sticky; the initial kinetic energy is not conserved, meaning that the momentum transferred in from one object is not transferred out the other. In inelastic collisions, the objects usually come to a stop and in elastic collisions the object that the initial momentum acted upon receives whatever the initial momentum transferred to it. A good example of this would be car collisions. Sometimes in car crashes the cars are squished together (inelastic) and sometimes one car is propelled from the other cars momentum (elastic).

 

Momentum

My definition of momentum is the amount of something it takes to make something move. I think it relates to acceleration, mass, magnitude and most definitely inertia. When I think of the word momentum I think of an object having to swing back and forth to a certain height in order to clear the distance of something. The Webster’s Dictionary definition is: the quantity of motion of a moving body, measured by a product of its mass and velocity. I was kind of close to the Webster’s Dictionary definition. Momentum has to do with the muchness of the moving of an object.

Newton's Second Law of Motion

Newton's Second of Law of Motion is that acceleration of an object is directly proportional to the net force on an object. But, the acceleration is inversely proportional to the mass of an object. This is a picture of my two brothers throwing two of the same size ball. I know that the baseball goes faster because the mass of the object is greater than that of the tennis ball. Newton’s Second Law also tells me that acceleration is inversely related to the mass of the object meaning that the more mass something has, the slower the acceleration would be. Also the less mass something has, the faster it will accelerate.

First Law of Motion

This is a picture of my friend Brachelle blocking a ball with another ball when she was playing dodge ball at our Ring Social this past Friday. This picture shows Isaac Newton’s First Law of Motion, which is objects in motion will tend to stay in motion unless acted upon by an outside, unbalanced force. The green ball in the picture coming towards Brachelle remained in motion until she hit it away with the purple ball which acted as the outside, unbalanced force that stopped the green ball from remaining in motion. Newton’s First Law of Motion also states that objects at rest will tend to stay at rest unless acted upon by an outside, unbalanced force.

Extra Credit

Cars

A vector is something that shows direction and magnitude. An example of a vector is a car. A car goes in a multitude of directions and can travel at many different speeds. I had a behind the wheel with my driving instructor and I noticed that cars relative to me and are going the same speed appear to be going no where from me, they look it looks like we are moving as one. Also, I noticed that when cars are opposite from the median relative to me, they appear to be passing really fast even though they are probably going the same speed. They appear to be moving really fast because they are going in the opposite direction.