Thursday, 3 April 2014

Lift example - Gloria, Alicia, Yong Hoe, Jun yang, Boon Jian





Lift example- priscilla, qian ning, yelun, jiahe





Lift example- Han Kang, Jason, Ryan, Joanna

Due to time constraints, we could only do part a and b.

PART A and B respectively:



Lift Example

Questions a and b are incorrect as we did not include the force exerted by the cables to make the velocity constant (acceleration=0ms^-2). We were in the midst of a heated discussion over c and d as our original results contradicted with the fact that when the lift is moving downwards (for c), we feel as if we are "floating" so our weight is supposed to be lesser and vice versa (for d).

Lift example


We only did question one and two! So sorry we didn't have time to do part c!

Done by: Kow Ningzhe, Sandy Lee, Geraldine Tan, Benjamin Chun 

Lift examples part a, b & c: Charissa, Kaining, Fangci, Joe

For a & b, ignore the free body diagram for at the start since the scenario starts from when it is already moving.

For every part, take upwards as positive, m=20.0kg, acceleration due to gravity = -10ms^-2, F refers to the weight of the person and the dot in the free body diagram represents the whole lift. For both FBDs of parts a & b, F1 refers to the force exerted by the cable, and F2 represents the weight of the whole lift including the person and the weighing scale.

We have not done part d yet.

part a:















part b:














part c:

Sunday, 23 March 2014

Group discussion- Sean, Hongtao, Micaiah, Shi Ying, Catherine
Video 1
http://m.youtube.com/watch?v=YVmDvV9JCAw

Video 2
http://m.youtube.com/watch?v=mv7Eo_qda7E

Video 3
http://m.youtube.com/watch?v=7Ei2Uaco5gU

We deeply apologise for our late post of links as we had some technical difficulties. Thank you for understanding.

Saturday, 22 March 2014

Comment by each student

Dear all,
  Thank you for those who have made the comments. However, there is some misinterpretation of how it should be done. In one conversation of yours, you can display 0,1 or more standards. Therefore, you need not try to fit in all the standards and grade them. I believe what Heng Yee has done is more aligned to what is needed.
Thank you.


Friday, 21 March 2014

Kinematics Group Discussion - Gloria, Alicia, Yong Hoe, Boon Jian, Jun Yang.

Discussion on question 1:
https://www.youtube.com/watch?v=Xlq1jE8Vp9w&list=UUL-iOEvq-XNNR85tLG-_CFA

Discussion on question 2:
https://www.youtube.com/watch?v=8k3FeVVIvA8&list=UUL-iOEvq-XNNR85tLG-_CFA

Discussion on question 3:
https://www.youtube.com/watch?v=ZPv-hQDAZ6M&list=UUL-iOEvq-XNNR85tLG-_CFA

We sincerely apologize for the late post due to certain difficulties we had with YouTube, but here are the links to our discussions for each question regarding this activity. Thank you.

Group discussion - Jia Yi, Zhu Yin, Guan Ting, Kai Wei

Our recordings got corrupted and hence, we were unable to upload most of them from the main iPad we recorded from.
However, we managed to record some parts of it using the second iPad but it was cut off halfway due to lack of space. Thus, we lacked our discussion for question 3.
Really sorry for the inconvenience caused.

Question 1 and 2
http://youtu.be/sulSC3lMATk
Question 2
http://youtu.be/7YpDNZo6mNU