Bidang Sains dan Matematik SMK Seksyen 4 Kota Damansara
Blog ini dihasilkan atas usaha untuk membantu pelajar-pelajar dalam mata pelajaran Sains dan Matematik. Semoga blog ini berfaedah unutk sem...
Friday, 16 March 2012
Mathematics Form 5 (Chapter 1)
FORM 5/Topic 1 - NUMBER BASES
1.1 BASE 2
Concept: It is easy to understand the concept by looking at this table.
28 27 26 25 24 23 22 21 20 INDEX
256 128 64 32 16 8 4 2 1 BASE 10
BASE 2
Info: Base 10 uses the digits 0,1,2,3,4,5,6,7,8,9.
Base 2 only uses the digit 0 and 1
How to convert numbers from Base 10 to Base 2?
e.g. 310 = 112 (by adding 2 + 1) read as one, one.
510...
Science Form 5 (Chapter 1)
What is microorganisms?
Microorganisms also known as microbes. Microorganisms are living things which are so small that they cannot be seen with the naked eye and are only visible under the microscope.
Who discovered the first microorganism?
Anton Van Leewenhoek (1632-1732) was the first person to discover the existence of microorganisms, when he used the simple microscope that he himself invented to view a drop of rainwater which he collected...
Physics Form 5 (Chapter 1)
The study of matter
Chapter 1: Waves
Objectives: (what you will learn)
1)understanding Waves
2)reflection of waves
3)refraction of waves
4)diffraction of waves
5)interference of waves
6)analysing sound waves
7)analysing electromagnetic waves
Understanding Waves:
1.A wave is a traveling disturbance from a vibrating or oscillating source.
2.A wave carries energy along with it in the direction of its propagation.
3.A wave is a mean of energy...
Chemistry Form 5 (Chapter 1)
Catalyst is a chemical substance that change the rate of chemical reaction.
Characteristics of catalyst:
Catalyst remains chemically unchanged during reaction. Its chemical composition still the same before and after reaction.
Catalyst only change the rate of reaction.
Catalyst does not change the quantity of the product formed.
Catalyst is specific in its action.
Only a small amount of catalyst is needed to achieve a big increase in rate of reaction.
How...
Biology Form 5 (Chapter 1)
[Biology Form 5] Aquatic Adaptation
Aquatic plants - also called hydrophytic plants or hydrophytes - are plants that have adapted to living in aquatic environments.
One of the main problems facing submerged aquatic plants is their inability to obtain oxygen. Unlike terrestrial plants, these plants cannot obtain the vital gas through their stomata because they are submerged in water.
Therefore, the stems, roots, and leaves of submerged aquatic...
Add Math Form 5 (Chapter 1)
[Add Maths Form 5] d For Difference
An arithmetic progression/sequence is a sequence of numbers in which the difference between two successive number is a constant, d.
Thus, the form of an arithmetic sequence is a , a + d , a + 2d , a + 3d , …
Eg:
2, 5, 8, 11, 14, … is an arithmetic progression/sequence with common difference 3.
To find the n-th term in an arithmetic sequence, use Tn = a + (n - 1)d
Example:
1) Find the value of x, in...
