Tuesday, March 23, 2010

FORLMULA R EGG RACE

Today I felt satisfied wtih my lab presentation. It is not the best but at least we tried our best n we are better than some of the guys haha. well, why i said so? because all the three members of my group are girls, including me. this has been proved through our lab presentation.

So, what is my lab presentation? oh great it is about the egg.It is called as FORMULA R EGG RACE. Actually, I had no idea on this stuff. but it is amazing that how we did it as today~ First of all, vehicle made out of cardboard, easily cut and formed. Material must be lightweight and strong. So we made sure the weight of the egg and vehicle is less to make it lighter.
we used cellophane tape as the seatbelt for the egg as it is pressure sensitive tape for attaching and mending purposes. Also we used bubble wrap as the egg protection to cushion the egg and to protect it from the shock.

Since the surface of the floor is not smooth, we used the marble as our base for the vehicle to reduce the contact of the vehicle with the floor. In this experiment, the elasticity of the rubber band is tested as we are only allowed to use one rubber band to launch it.
During our first test, the vehicle can travel till 4m. Oh no. It is not enough. Im not going to accept this kind of result. Everything needs to be the best, isn't?

After several testings, It has been improved until 5.5m. However, things always come unexpected.TODAY we tried our vehicle and it did not work. my mood was bad at that time., desperate. So, i decided to replace the new marbles. Oh yeah thanks to chee yau n others for giving me new marbles. I told my members that the marble was the problem as it is worn out. Oh yeah what i guess was correct. Finally our vehicle can travel till 7.5m and the best record is 8.5m!! I was excited and same to my members.

BUT ONCE AGAIN, things always come unexpected. During the actual trial, we only get 5.6m. I think this is because OF the structure of the floor.This case is same to other groups. but we still have two groups in our lab session who made the record which is 7.6m. Im satisfied with our results as we tried our best. We have done a good job. Thanks god~

tHE NEXT experiment will be tougher as we need to launch the egg from fifth floor to the first floor.and we must make sure that our egg does not break after launching. It is incredible?? we will prove it for the next lab session.

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