sem 3 trial stpm 2014

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SMK SULTAN ISMAILJOHOR BAHRU

FIZIK (KERTAS 3)UJIAN PENILAIAN PRA PENTAKSIRAN 3STPMTAHUN 2014One And Half Hours ( Satu Jam Setengah )PHYSICS (PAPER 3)PRE ASSESSMENT EVALUATION TEST 3STPMYEAR 2014960/3SMK SULTAN ISMAIL JOHOR BAHRUFIZIK (KERTAS 3)UJIAN PENILAIAN PRA PENTAKSIRAN 3STPMTAHUN 2014One And Half Hours ( Satu Jam Setengah )PHYSICS (PAPER 3)PRE ASSESSMENT EVALUATION TEST 3STPMYEAR 2014960/3 SMK SULTAN ISMAIL JOHOR BAHRU FIZIK (KERTAS 3)UJIAN PENILAIAN PRA PENTAKSIRAN 3STPMTAHUN 2014One and Half Hours ( Satu Jam Setengah )PHYSICS (PAPER 3)PRE ASSESSMENT EVALUATION TEST 3STPMYEAR 2014960/3SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU SMK SULTAN ISMAIL JOHOR BAHRU

Instructions to candidates:DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO.

Answer all questions in Section A. Marks will not be deducted for wrong answers. For each question, four suggested answers are given. Choose the correct answer and circle the answer.Answer all questions in Section B. Write your answers in the spaces provided.Answer two questions in Section C. All essential working should be shown. For numerical answers, unit should be quoted wherever appropriate. Begin each answer on a fresh sheet of paper and arrange your answers in numerical order.Values of constants are provided in this question paper.

QUESTIONSMARKS

1- 15

16

17

18

19

20

TOTAL

This question paper consists of 11 printed pages include this page

Section A [15 marks]Answer all questions in this section

1 The equation of motion of an object performing simple harmonic motion is given by

x = 5 sin

where x is the displacement in metres and t is the time in seconds. When t = 1 s, the speed of the object is

A. 2.3 ms-1B. 2.6 ms-1

C. 4.3 ms-1D. 4.6 ms-1

2 The figure shows a mass attached to a spring made to oscillate vertically by an oscillator.

If the damping is slightly increased, which graph shows the variation of amplitude a with frequency f of the oscillation?

A.

B.

C.

D.

3 When sound waves propagate in air, two particles which are 0.2m apart vibrate antiphase. If the speed of sound in air is 320 ms-1, the frequency of the sound waves is

A. 64 HzB. 80 Hz

C. 800 HzD. 1600 Hz

4 Standing waves on a string can be produced by vibrating one end of a taut string at a certain frequency with the other end fixed. Standing waves can also produced in a closed pipe by putting a vibrating tuning fork near the open end. Which of the following is tru of the standing waves on the string and the standing waves in pipe?

A. Both standing waves vibrate with the speed of sound in air

B. The sound of both standing waves cannot be heard because standing waves do not propagate.

C. The standing waves on the string have nodes while the standing waves in pipe do not have nodes

D. The standing waves on the string are transverse waves while the standing waves in the pipe are longitudinal waves.

5A vertical tube is filled completely with water. A sound source of fixed frequency is placed near the upper open end of the tube and subsequently water is allowed to flow out of the lower end. The first resonance is heard when the water level is 7 cm below the open end whereas the second resonance is heard when the water level is 23 cm below the open end. Which other distance between the water level and the open end will cause resonance?

A 9 cm B12 cmC 36 cmD 39 cm

6A stretched wire has length of 100 cm. The fundamental frequency of the wire is 256 Hz. When the wire is shortened to 60 cm, what will be the new fundamental frequency of the wire?

A 122 Hz B 212 Hz C 316 Hz D 427 Hz

7A sound source of frequency 2500 Hz is placed several meter away from a wall in a large room which contains a certain gas. A microphone is moved along the line joining the microphone to the wall vertically to detect the locations of nodes and antinodes. It is observed that the microphone is moved from a node through 20 antinodes to another node by a distance of 1.800 m. Calculate the speed of the sound in the room.

A 550 m s-1B 450 m s-1C 360 m s-1D 280 m s-1

8Which of the following light ray represents the direction of incident ray OP after it has passed through the lens? [Assuming O to be the primary focus]

B

CA

QDP

0C

A QDB QCC QBD QA

9A concave mirror produces a virtual image of distance 50 cm and the image distance is twice that of the object. Find the focal length of the concave mirror.

A 20 cmB 30 cmC 40 cmD 50 cm

10In a Youngs double slit experiment, an interference pattern is obtained on a screen when the slits are illuminated by a sodium light source. The single light source is then replicated by two sodium light sources placed in front of each slit. What will happen?

A The interference pattern remain unchangedB The interferences intensity increasesC Two interference pattern are observedD The interference pattern disappears

11A diffraction grating is ruled with 750 lines per millimeter when monochromatic light falls normally on the grating. The second-order diffracted beams each making an angle of 180 with the normal to the grating are observed on the far side of the grating. Find the frequency of the light.

A 1.5 1015 HzB 4.8 1015 HzC 1.9 1014 HzD 3.6 1014 Hz

12The figure below show the energy levels of an atom.

The magnitude of ionization energy of an electron in the atom is

A EB E - E1C E - E5D E2 - E1

13In a photoelectric effect experiment, light of frequency f is incident on two types of metal P and Q with work function of metal P more than the work function of metal Q. The stopping potential difference Vo , is measured and plotted against f. Which of the following graphs of Vo against f is correct ?

14Which of the following statements is true concerning the binding energy per nucleon, E?

AE is directly proportional to the nucleon numberBE is inversely proportional to the nucleon numberCE is maximum when the nucleon number has values from 1 until 20DE is almost constant when nucleon number has values from 60 until 80

15 In general, the fission of a heavy nucleus will produce two smaller nuclei, two or three neutrons, several -particles and a little -radiation. It is always true that the nuclei produced

Ahave total rest mass is more than the original mass of the nucleusBhave most of the kinetic energy originated from part of the loss in energyCmove in exactly opposite directionsDhave ratio of neutron to proton to be too low to maintain stability

Section B[15marks]Answer all thequestions in this section

16a)What is meant by a body is moving in simple harmonic motion?

[2 marks]

b)One end of a helical spring is fixed and a 0.25 kg mass on a smooth horizontal surface is attached to the other end. The mass is displaced through a distance of 0.15 m from the equilibrium position by a force of 36 N and then released. The mass performs simple harmonic motion. Calculate

(i) The period of the simple harmonic motion

[3 marks]

(ii) The displacement of the mass 0.08 s after being released

[3 marks]

17Potassium-40 is a radioactive isotope of potassium which is present in human body. The main decay mode is for to decay by the emission of beta particle to produce the stable product of .The mass of one atom = 39.964000 uThe mass of one atom = 39.962591 u

a)Write an equation for this radioactive decay process[1 mark]

b)Calculate the energy emitted in Joule when one nucleus of undergoes