Evidence of Work
We had to make an end of the year project. Colin and I decided to make an egg drop. This took us many tries and was more difficult than we thought it would be. It was very messy when it did not work and we would have to start over.
Content
Physics
Our egg has a weight of .25 pounds. Using this, we can find the force that it hits the ground, without air resistance.
F=ma
F=(.25lbs.)(9.8m/s^2)
F=2.45N
We can also find the velocity, using the formula:
V=d/t
V=(5m)(4s)
V=20m/s
Journal
Tuesday, May 26, 2015
Today we got started on our egg drop project. We came up with the basic idea to tie rubber bands around the egg and suspend it in the air of the box. We ended the day with half the box ready.
Thursday, May 28, 2015
Today we finished our box. We didn’t have an egg, so we worked making the box better. We tightened the rubber bands.
Monday, June 1, 2015
We finally brought an egg. We put in in the rubber band hold and went outside. We threw it up into the air and it did not break. We then went to the bleachers and threw the egg off. It did not fall out. We knew we had to do it multiple times to make sure the egg would work. We threw it a second time and the egg was smashed to bits. We had to start over because the yolk of the egg was all over the cardboard.
Tuesday, June 2, 2015
We made our new cardboard box and brought a new egg. We knew how to make the cardboard box this time, so we just made that. We didn’t have any time to drop the egg, so we finished class by putting our stuff away.
Thursday, June 4, 2015
We went outside and we through our egg off the bleachers and it hit a bar and exploded. We then had to make a new project. We came back to the class with just enough time to make the cardboard protection box again.
Friday, June 5, 2015
We went outside to test our project again. It broke on the first throw. It fell down multiple steps, so that was probably why it broke. We had to clean the track so we spent most of the class cleaning. After, Colin decided to finish it at home, which he did.
Our egg has a weight of .25 pounds. Using this, we can find the force that it hits the ground, without air resistance.
F=ma
F=(.25lbs.)(9.8m/s^2)
F=2.45N
We can also find the velocity, using the formula:
V=d/t
V=(5m)(4s)
V=20m/s
Journal
Tuesday, May 26, 2015
Today we got started on our egg drop project. We came up with the basic idea to tie rubber bands around the egg and suspend it in the air of the box. We ended the day with half the box ready.
Thursday, May 28, 2015
Today we finished our box. We didn’t have an egg, so we worked making the box better. We tightened the rubber bands.
Monday, June 1, 2015
We finally brought an egg. We put in in the rubber band hold and went outside. We threw it up into the air and it did not break. We then went to the bleachers and threw the egg off. It did not fall out. We knew we had to do it multiple times to make sure the egg would work. We threw it a second time and the egg was smashed to bits. We had to start over because the yolk of the egg was all over the cardboard.
Tuesday, June 2, 2015
We made our new cardboard box and brought a new egg. We knew how to make the cardboard box this time, so we just made that. We didn’t have any time to drop the egg, so we finished class by putting our stuff away.
Thursday, June 4, 2015
We went outside and we through our egg off the bleachers and it hit a bar and exploded. We then had to make a new project. We came back to the class with just enough time to make the cardboard protection box again.
Friday, June 5, 2015
We went outside to test our project again. It broke on the first throw. It fell down multiple steps, so that was probably why it broke. We had to clean the track so we spent most of the class cleaning. After, Colin decided to finish it at home, which he did.
Reflection
It was more difficult than we thought. The pit of our project was when we had to start over and our peak was when our egg drop project worked. Two things we did wrong were trying to test the egg drop for the second time with out adjusting it back into place. The other thing was making the rubber bands to close to the bottom. I learned that I should not rush things and that cotton is not the best at being a cushion if an egg is really close to it. It was fun, but it was harder than we had anticipated.