Physics ATP?

[bikermicefrmars]

In skool we have yet to study the electricity part of Physics. But we have done everything else. And this is the first tym we are going to have an ATP paper...! Can you guys tell me the important topics? Because all of the topics are not there in ATP...! Is doing light, kinematics, heat capacity and measurements enough?

THanks!

 

[abcde]

Yes you have correctly highlighted the important topics for ATP. Prepare them well. Your concepts of the other topics (which you have studied) must also be clear...

 

[bikermicefrmars]

But I didnt get enough time to even go thru the other topics? Does it mean that it will be a prob for me? BTW....are the ATP papers in skool usually from past papers?

 

[abcde]

It wont be much of a problem InshaAllah if the above mentioned topics are well prepared. I'm sure you do have the basic concept of the other topics. In my school, yes they are! Don't know about yours

 

[scouserlfc]

I think you ask your teacher and confirm from him that the topic of electricity is not gonna come as almost all the Qs are based on it so get that confirmed.

 

[bikermicefrmars]

Two more questions, guys:

1. Can you tell me the best and easiest method to find a suitable scale for the graph questions in ATP?
2. What is the best fit line?

Sorry, but I had a crappy teacher!

 

[Nibz]

Just have a look at the values of both the x-axis and y-axis and choose a scale accordingly. There is no such best and easiest method.
Best fit line means, your line should cover more than half of your graph. ( Not just in 1/3rd or 1/4th of the graph) Also the line should be a smooth one!

 

[bikermicefrmars]

My teacher told something like this as well, that if the graph has some points a little far from a straight line. Then we must make a straight line even if it doesn't join all points??? IS IT TRUE?

 

[Nibz]

^YES. It's perfectly true!
When they ask for a best fit line; there are less chances of that possibility! ( u just have to draw a line that covers more than half of the graph paper)
But when they ask for a smooth curve; then surely there will be some points that come a little far from the straight line, and ignoring this fact you have to draw a smooth curve!!

 

[bikermicefrmars]

@nibz....thanks a bunch...mate!

 

[abcde]

One thing I'll like to add: A line of best fit must have an equal number of points both above and below the line. So if you draw a straight line joining all points expect for one which is above/below the line, it won't be credited as an equal number of points both above and below your best fit line are required. Hope you understand Moreover, it is always helpful to use a 30cm rule in the exam to avoid drawing two 'broken' lines...
I, too, didn't have a good teacher bickermicefrmars!

 

[bikermicefrmars]

abcde...thankx!

 

[abcde]

You're welcome