b(ii) The smallest scale division is smaller // D1.2 reads until 0.1 2 kg, D1.3 reads until 10 g
1 (c) Do repeated readings and find the average value // eyes is
perpendicular/in line with the scale of readings when taking measurements
3 (a) A substance which has unstable nucleus and always decays to be more stable by emitting radioactive radiation.
1 1
(b) Beta particle 1 1
(c)(i) The cardboard sheet is thicker.
Kepingan kadbod itu lebih tebal.
1 (ii) Less number of beta particle can penetrate the thicker 2
cardboard
Mark Mark
(c)(i) Mass increases, extension increases (accept if using
symbol) 1
6(a) Current produced due to the change/cutting of magnetic flux // Current produced when there is a relative motion between the coil and magnet (d)(i) Number of turns increases, deflection increases 1
Mark Mark (d)(ii) Number of turns increases, magnitude of current flows
increases 1
2
TOTAL 8M
7(a) Reflection 1 1
(b)(i) M1 light from
object is reflected M2 Observer sees image in a straight line
2
3
(b)(ii) Upright// same size// virtual 1
(c)(i) M1 n =
M2 1.49 // 1.5
2
(c)(ii) Total internal reflection // Reflect completely into the glass 1 (c)(iii)
1
(d)(i)
1
(d)(ii) Avoid multiple image // image is brighter//
To allow total internal reflection occur 1
TOTAL 10 M
8 (a)(i) The degree of hotness of an object 1 1
(a)(ii) M1 1 x 103 (1.0 x 60) = 0.05 c (78 – 20) 1
2
M2 2.069 x 105 Jkg-1oC-1 1
Mark Mark
M2 Do not easily absorbed heat from surrounding // Not easily hot // Not easily releases heat to the ice
2 (c)(iii) M1 Big
M2 Prevent heat from outside to easily enter
2 (b)(ii) The distance between two streams of water in 9.1 > 9.2 // x1
> x2
1 (b)(iii) The bigger the cross sectional area the lower the speed of
air // vice-versa
1
(b)(iv) The higher the air pressure between the two streams the longer the distance between two streams of water. // vice-versa
1
(b)(v) The higher the speed of air had blown, the lower the air pressure between the two streams of water.
1 (c) M1 Gas flow through a narrow nozzle at high speed 1
4
M2 Low pressure is created 1
M3 The higher atmospheric pressure draws air into the low
pressure region through air hole 1
M4 Air mix with gas (undergoes complete combustion) 1 (d) Charateristic Explanation
Streamlined / aerodynamic shape
Reduce water resistance Strong material Not easily breaks/damage //
can withstand high pressure/force Low rate of rusting Not easily rust
1,1
1,1
1,1
total weight of submarine Nuclear energy Last longer // save cost
1,1
M4 The higher the number of complete oscillations the shorter the period.
M5 The shorter the period the higher the frequency // T =
5 5
(c) M1 (When someone speaks the) paper cone will vibrating (The vibrating paper cone will vibrate) the air
M4 The series of compressions and rarefactions (produces sound waves)
Shining / smooth surface Able to reflect the signals efficiently.
SECTION C
11(a)(i) A big force acting in a short time 1
(ii) Place the pile driver at a certain height
Release the steel pile onto the pile driver
Causes an impact on the pile driver in a short time
Produces high impulsive force on the pile driver
1 1 1 1 (b) Technique//Characteristics Explanation
Continue to swing the racket
High string tension High impulsive force // ball move with high acceleration
Nylon High durability // not easy to
break // more elastic
Q Continue to swing the racket
after hitting the ball, Short time
12 (a) The rate of flow of charge 1
(b) (i) Parallel 1
(ii)
1
(iii) 1. Increases
2. The effective resistance of the circuit decreases.
1 1 (c)
Characteristics Explanation Low melting point easy to melts
4.2 A little bit higher than the current flow through the iron ( 1000 / 240 = 4.16 A)
Small diameter increase the resistance High resistivity increase the resistance
R Low melting point, ampere value is 4.2 A,
Small diameter high resistivity of wire and High resistivity
Hak milik MPSM, Kelantan SULIT PAPER 3/2012 1(a)(i) State the manipulated variable
length of wire(conductor/resistor)// l panjang dawai ( konduktor, perintang) // l
1
diameter dawai// ketebalan dawai// saiz dawai//suhu dawai //
jenis dawai
Hak milik MPSM, Kelantan SULIT PAPER 3/2012
- All the point plotted correctly Semua titik di pkot dengan betul
Hak milik MPSM, Kelantan SULIT PAPER 3/2012
(e) State the correct relationship R is directly proportional to l.
R berkadar terus dengan l .
[ syarat - graf mesti lalu (0,0) – lain jawapan reject ]
[ Note : Graf lurus tak lalu (0,0) tapi pelajar jawab, V increasing linearly to - Reject ] M2 State the value and unit correctly 10 cm
M3 Correct answer with correct unit 10 cm
1
1
1
3
Hak milik MPSM, Kelantan SULIT PAPER 3/2012
(d) Eyes is perpendicular to the scale of meter rule when taking measurements// Do the experiment in dark room// repeated readings of v for same u three time and find the average value as to increase the accuracy of the readings
1 1
3. (a) State the correct Inference:
The pressure in liquid depends on the density of liquid .
1
1 3(b) State the correct Hypothesis:
When the density of liquid increases , the pressure also increases
1
1 3(c)(i)
State the aim of the experiment :
To investigate the relationship between the density of the liquid and the pressure.
1
1
(ii) State the variables in the experiment:
Manipulated variable: density
(iii) List the apparatus and material
Meter rule, manometer, meaasuring cylinder, water, salt,
triple beam balance, thistle funnel, mercury 1 1
Hak milik MPSM, Kelantan SULIT PAPER 3/2012 (iv) Arrangement of apparatus
1 1
(vi)
Procedure of experiment
State how to control the manipulated variable
The measuring cylinder is filled with water of volume, V = 250 ml and mixed with salt of mass 10 g.
Immersed the thistle funnel into the water at the depth of water, h = 30 cm .
State how to measure the responding variable
Measure the diffrence length of mercury column, y , at the manometer and record the data.
Repeat the experiment
Repeat the experiment with different mass of salt m = 20g , 30g, 40g and 50g.
Hak milik MPSM, Kelantan SULIT PAPER 3/2012
The output voltage of the transformer depends on the number of turns of the secondary coil.
1
1
Hypothesis:
The output voltage of the transformer increases as the number of turns of the secondary coil increases
1 1
Aim of the experiment :
To investigate the relationship between the number of turns of the secondary coil and output voltage of a transformer.
1 1
Variables in the experiment:
Manipulated variable: the number of turns of the secondary coil, N
Responding variable: The output voltage, V
Fixed variable: number of turns of the primary coil and the input voltage.
1
1
2
List of apparatus and materials:
low a.c power voltage, insulated copper wire, iron-core, a.c voltmeter and connection wire.
1
1
Hak milik MPSM, Kelantan SULIT PAPER 3/2012 The low voltage of a.c power supply is switched on.
The reading of the voltmeter is measured , V
The experiment is repeated with Ns = 40, 60, 80 and 100
Hak milik MPSM, Kelantan SULIT PAPER 3/2012