This is a joint blog shared by 2 lazy pple - Ciping & Wilbur, who wishes to use each other to maintain the blog. Sadly, Ciping is the more inactive one and Wilbur does most of the work in the end. Feel free to post comments on the tag-board, it feels good to know pple are actually reading and responding to your posts. It gives motivation to write more.
Consider the thermometer qn. Most came out thinking, to get 100 degrees, you put the thermometer into the boiling water, and wa la.. but no...
its steam.
Consider the light bulb question. Many think that adding a bulb in parallel to the circuit would make the one connected in series dimmer. Logic - since more bulbs added, electricity must divide among more bulbs, some its dimmer. But remember.. we did a qn similar to this before. And I could not comprehend then, till 2 days ago, I was still puzzled why the bulb will not get dimmer. I had a vision....
dat if this qn came out, and if I'm not sure, I'd be dead. The tb did not offer much help, but it provided a link - www.crocodile-clips.com.
So I downloaded the software and did the experiment. Luckily.
Then came the wheel qn. What is the direction of friction. Acceleration was to the right. But the wheel was in a clockwise direction. So shouldn't the friction be to the right too? Since the wheel was going in the left direction at the point of contact with ground.. But noo... its to the left. Based on some physics we have not yet learned ---->http://www.school-for-champions.com/science/frictionrolling.htm.
Add another careless mistake that I made, and that makes it a very tricky paper. And that's juz paper 1
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