Homeworks as of 14 January.

Due Friday - Biology PEKA (potatoes) and Math Website report/PATS?

Due Monday.
- Physics exercise : the one she wrote on the board while we were doing the PEKA. Here are the questions for those who didn't get to copy them in time.


Refraction
1. Diagram below shows the path of light runs(?) through a glass block.

(a) Calculate the incident angle.
(b) If n=1.5, find the values of x and y.
(c) If the speed of light in the air, c=3 x 10^8 m s^-1, calculate the speed of light in the glass block.

2. Diagram below shows an incident ray striking the air to glass surface. Find the refractive index.

3. Diagram below shows a refraction. Find the refractive index of glass.

4. When light travels from water to glass, its velocity _________.
5. The refraction index of plastic is 1.31. Calculate the speed of light in the plastic block.

- For those in 5SB for English, think of points to write in our essay of People who had made an Impact in our lives.

Due Tuesday.
- Sejarah notes, prehaps?
- Math website report! (unless we sent it on Friday la)
- Prepare the chemistry PEKA report. Its Experiment I in our practical book. :) We have to do four, but get this one prepared first!

Due Friday.
- Chemistry work book. Page 3-5 (right?)

Who updated the AJKs and all? :O 

Because I didn't do it.