Reminders xP

OK, now I am submitting my weekend homework.

Firstly, good luck to all those taking Physics Lecture Test tomorrow.

Stuff to mug:

Distance is the total length travelled by a moving object irrespective of direction.

Displacement of an object from reference point X is the linear distance and the direction of the object from point X.

Uncertainties:

1. s = a ± b
∆s = ∆a + ∆b

2. s = ab^±1
(∆s)/s = (∆a)/a + (∆b)/b

3. s = ka where k is constant
∆s = k∆a

4. s = a^n where n is constant
(∆s)/s = |n|(∆a)/a

5. s = f(a) where f is a random function
∆s = [f(a) (max) - f(a) (min)]/2

And stuff on random, systematic errors and precision and accuracy, which I am lazy to regurgitate here alr.

Hopefully Kinematics is common sense to you...

I still haven't done my GP Journal and Econs Tutorial yet. xD

And hopefully everyone is prepared for a Chem surprise test too.

Blueh, I better go study econs now.

by Fangxu