Monday or April 13, 2015 A.D.:
Today we reviewed for our Unit 3 quiz. The quiz will contain questions about
energy, the Law of Conservation of energy (the energy found in a closed system
is always constant) and maybe some momentum. In this unit we will also be
tested on collisions and the two types of collisions, although not on this
quiz. The first type of collision is elastic collision. It is a collision where
no energy is “lost” to friction (it has and will never happen). The second type
of collision is an inelastic collision, in which, some energy is “lost” to
friction.
Tuesday or April 14, 2015 A.D.:
We took the Unit 3 quiz today. I am
confident that I did well on it and I am glad I studied. The quiz was exactly
how I expected it.We only had questions about energy and none about momentum.
Wednesday or April 15, 2015 A.D.:
Woohoo. I got a 100% on my quiz. After we reviewed the
quiz we did a quick momentum thing. We took marbles and put them on a groove in
a ruler. We flicked one of the marbles into a group of other marbles and
watched the momentum pass from the first marble to the outer marble. When one
marble of equal mass is flicked at another marble that will move at just under
the velocity the other marble hit it with. This is because some energy is
transferred as friction.
Thursday or April 16, 2015 A.D.:
Today we had our water balloon lab. We switched around different variables
that influence momentum to see what will happen. We took water balloons and
threw them around. We learned that impulse is what makes a water balloon break
and that it can be calculated by force x time. We changed the throw height
(velocity) and the water in the balloon (mass). We found out that the balloons
with little mass didn’t break and nor did the ones thrown only to about 3
meters. We enjoyed getting soaked.
Friday or April 17, 2015 A.D.:
Today we finished our study guide for Unit 3. We did the remaining momentum
questions that we didn’t do last week. I also finished the lab questions from
the lab yesterday. We had to identify the momentum if mass is increased by 10
fold or impulse if force is increased by 5 fold etc. We were able to finish it all in class and I
turned it in today.
Summary: This week was a fun,
eventful week. We got to get soaked while learning about momentum. I still need
to work on focusing and working more efficiently.
Monday, April 20, 2015
Sunday, April 12, 2015
Science Week 30
Monday or April 6, 2015 A.D.:
Wednesday or April 8, 2015 A.D.:
FIELD TRIP
NO SCIENCE
Thursday or April 9, 2015 A.D.:
Today we completed part of the study guide for the Unit test with the substitute Mrs. Trainer. We completed the first 23 questions that we have covered. We did a lot of heat transfer talking about the three types of heat transfer; conduction, convection, and radiation. We also talked about potential and kinetic energy and their formulas. We also had a question about why perpetual motion does not happen and where the energy goes.
Friday or April 10, 2015 A.D.:
Today we finished our egg-drop projects and we added some minor things. We added compartments of air to the foam to increase the air resistance. We used large bubble wrap and two extremely large air pockets. On Saturday weather-permitting we will drop our projects from a helicopter at 50 meters. I will be there and I can't wait to tell you if we won. We will not win the prize, but we may get the honor of having our egg survive.
Summary: This week was a fun week where got to do a lot of hands-on building. We had to recover from losing in the firetruck and make a better design. I still have to work on my team working skills.
P.S. We lost. :(
Today we dropped our egg drop projects from heights of 1,2,3 meters. We took our design and threw it down. 2/3 of all the groups' eggs survived including ours. Yipee! Our total weight was 462 grams which was sort of the average as well. One group used corn syrup and multiple groups used peanut butter.
Tuesday or April 7, 2015 A.D.:
Today we had our second egg drop. We dropped our projects from a 70ft fire truck ladder. Our box's zip-tie broke and our box opened when it hit the ground. We were only allowed to open the boxes at the end of the day to find out if we won, but as we approached it we knew what the outcome was! The box was glistening with blood from an egg. Yellow yolk saturated the foam as we sadly retrieved the mangled carcass of "Pretty" the egg. (Andrei named it) We grieved the loss of our egg and the failure of our package. Next time we'll win with our new plan.
We begun to hatch a plan by just taking slabs of foam with no box and put the egg in a cavern in the middle like before. We will then tape the foam together and cut it for easy removal.
We begun to hatch a plan by just taking slabs of foam with no box and put the egg in a cavern in the middle like before. We will then tape the foam together and cut it for easy removal.
Wednesday or April 8, 2015 A.D.:
FIELD TRIP
NO SCIENCE
Thursday or April 9, 2015 A.D.:
Today we completed part of the study guide for the Unit test with the substitute Mrs. Trainer. We completed the first 23 questions that we have covered. We did a lot of heat transfer talking about the three types of heat transfer; conduction, convection, and radiation. We also talked about potential and kinetic energy and their formulas. We also had a question about why perpetual motion does not happen and where the energy goes.
Friday or April 10, 2015 A.D.:
Today we finished our egg-drop projects and we added some minor things. We added compartments of air to the foam to increase the air resistance. We used large bubble wrap and two extremely large air pockets. On Saturday weather-permitting we will drop our projects from a helicopter at 50 meters. I will be there and I can't wait to tell you if we won. We will not win the prize, but we may get the honor of having our egg survive.
Summary: This week was a fun week where got to do a lot of hands-on building. We had to recover from losing in the firetruck and make a better design. I still have to work on my team working skills.
P.S. We lost. :(
Subscribe to:
Posts (Atom)