A journey to MSSM

Minggu ni memang busy... sebok buat kerja2 perkeranian... best jugak timba pengalaman jadi manager utk team negeri... after 8 years terlibat ngan netball peringkat sekolah and peringkat daerah... this year I berpeluang bawak team Negeri... best2... walaupun penat banyak... tapi tak pe... last year dah terlepas pi Melaka, sebab masa tu baby kecik lagi... this year tak mau terlepas lagi... sorry ye Papa kena ngasuh anak2... kesian pulak kat anak2...

1st day... 27/5/2010
pendaftaran... jam 5.15 ptg dah start dah 1st training...
kehadiran... alamak... memalukan sungguh player Daerah sendiri yg tak cukup... player lain semua dah ada... kecuali seorang player from Bukit Jalil...

best jugak tengok kebolehan budak2 ni... cara passing bola... cara terima bola... pergerakan tubuh... body tinggi lampai semuanya... tu baru kat sini... bila dah kat Putrajaya nanti... player semua tinggi melayut... tak tau lah camna GD/GK kami nak guard GA/GS yg tinggi2 semuanya tuuuuu... kena fikirkan cara...

Latihan hari pertama... U18 vs U15...

Centralised training mula 27/5/2010 - 4/6/2010
6/6/2010 bertolak ke Putrajaya...
game mula 7/6/2010 - 10/6/2010...
wish us luck!!!...
chaiyok!... go fight win!!!

SCALARS AND VECTORS

SCALARS AND VECTORS

• Vectors are quantities which have magnitude and direction.
•  Example: velocity, displacement, acceleration, force, electric field strength and momentum.
•  Scalar are quantities that have magnitude only.
•  Example: mass, temperature and density.

Addition and subtraction of vectors

•  A vector may be represented by an arrow.
•  The addition of two vectors P and Q is a new vector, that is resultant vector.
•  The resultant vector can be determined using :

             i. method of parallelogram of vectors.
            ii. Method of triangle vectors.

•   Subtraction of vectors is done by using the process of addition.

Triangle of vectors
1. Use a possible scale to draw vector P.
2. From the head of vector P draw a line to represent the vector Q.
3. Complete the triangle. The line from the tail of vector P
    to the head of vector Q represents the sum (P + Q) in magnitude and
    direction.

Relative velocity

•   Subtraction of vectors is used to find the relative velocity between two objects.
•  with velocities v_A = 5 m s^-1  and v_B = 3 m s^-1 respectively.
•   A passenger in car B sees car A in front of it moving away at a speed 2 m s^-1.
• Velocity A relative to B = V_A- V_B 
• A passenger in car A sees car B moving backwards at a speed of 2 m s^-1.   
• Velocity B relative to A  = V_B- V_A 

Resolving a vector

• The two mutually perpendicular components of a vector R are of magnitude;

                               R_x = R cos θ

                              R_y = R sin θ

 

PHYSICAL QUANTITIES AND UNITS

PHYSICAL QUANTITIES

1.   Physical quantities are quantities that can be measured.
2.   Examples : length, mass, time, weight, electric current, force, velocity and energy.
3.   To describe a physical quantity, two things must be specified: a numerical value and the unit. 

SI UNITS

1. The unit of a physical quantity is the standard used to compare different magnitudes of the same physical quantity.
2. In SI, each physical quantity has only one unit. Prefixes are attached to SI units.  

 

Prefixes	Factor	Symbol
Pico	10-12	p
Nano	10-9	n
Micro	10-6	m
Milli	10-3	m
Centi	10-2	c
Deci	10-1	d
Kilo	103	k
Mega	106	M
Giga	109	G
Tera	1012	T

BASE QUANTITY AND BASE UNITS

QUANTITY	SI UNIT	SYMBOL
Length	Metre	m
Mass	Kilogram	kg
Time	Second	s
Electric current	Ampere	A
Thermodynamic temperature	Kelvin	K
Amount of substance	Mole	mol
Light intensity	Candela	cd

 

DERIVED QUANTITY AND DERIVED UNITS

1.   A derived quantity is a combination of different base quantities.
2.   The unit for a derived quantity is known as derived unit.

Derived quantity	Derived unit
Area	m2
Volume	m3
Frequency	Hz @ s-1
Density	kg m-3
Velocity	m s-1
Acceleration	m s-2
Force	N  @ kg m s-2
Pressure	Pa  @ N m-2
Energy or work	J  @ N m
Power	W  @ J s-1
Electric charge	C  @ A s
Electric potential	V  @ J C-1
Electric intensity	V m-1
Electric resistance	Ω  @ V A-1
Capacitance	F  @ C V-1
Heat capacity	J K-1
Specific heat capacity	J kg-1 K-1

 

DIMENSIONS OF PHYSICAL QUANTITIES

1. The dimension of a physical quantity is the relation between the physical quantities and the base physical quantities.
2. The dimension of a physical quantity is represented by [ physical quantity ]

QUANTITY	SI UNIT	Dimension
Length	m	L
Mass	kg	M
Time	s	T
Electric current	A	A
Thermodynamic temperature	K	θ
Amount of substance	mol	N
Light intensity	cd	I

Derived quantity	Derived unit	Dimension
Area	m2	L2
Volume	m3	L3
Frequency	Hz @ s-1	T-1
Density	kg m-3	ML-3
Velocity	m s-1	LT-1
Acceleration	m s-2	LT-2
Force	N  @ kg m s-2	MLT-2
Pressure	Pa  @ N m-2	ML-1T-2
Energy or work	J  @ N m	ML2T-2
Power	W  @ J s-1	ML2T-3
Electric charge	C  @ A s	AT
Electric potential	V  @ J C-1	ML2TA-1
Electric intensity	V m-1	MLTA-1
Electric resistance	Ω  @ V A-1	ML2TA-2
Capacitance	F  @ C V-1	A2M-1L-2
Heat capacity	J K-1	ML2T-2K-1
Specific heat capacity	J kg-1 K-1	L2T-2K-1