Download - Trial Fz Pra u1 Term 1 2014 Edited
PRA U1SEKOLAH MENENGAH KEBANGSAAN RAJA PEREMPUAN,IPOHTRIAL STPM SEM 1 2014 PHYSICSOCTOBER1 Hour
NAME : ____________________________ CLASS : PRA U1 AV
Section A( 15 marks )Answer all questions in this section
Write your objective answers in the table below.
1611
2712
3813
4914
51015
Section B ( 15 marks)Answer all questions in this section
16.(a) state the conditions for the equilibrium of the body [ 2marks]
(b) A uniform ladder of weight 150 N is leaned against a smooth wall, and is placed on a rough floor is shown in the diagram below.
The coefficient of friction between the floor and the ladder is 0.38.( i) sketch a diagram showing all the forces acting on the ladder [ 1mark](ii)Determine the angle when the ladder is about to slide [ 4 marks]
17.(a) A wire of cross-sectional area of 0.52 mm2 and natural length 60.0 cm is streched at both ends by aforce 50 N as shown in the figure
( i) what is the stress on the stress on the wire? [ 2 marks]( ii) If the extension is 0.12 cm, what is the strain? [ 2 marks](iii) calculate the Youngs modulus [1 mark](iv) What is the strain energy of the streched wire? [1 mark]
(b) Distinguish between elastic deformation and plastic deformation [ 2 marks]
Section C ( 30 marks)Answer only two questions in this section
19.(a)
(b)
(c)
20
THIS QUESTION PAPER CONSISTS OF 6 PRINTED PAGES
End of question paperPrepared by :( PN. NUR AISYAH BT ABDUL HASHIM) Penyelaras Fizik Pra UChecked and Verified by:
( Encik Ahmad Khusairi b. mohd salleh) Penolong kanan Tingkatan 6
ANSWER TRIAL PHYSICS STPM SEM 1 201416. ch 7- stpm 201417- ch 8- Q 11 pelangi pg 19618- Ch 5- stpm 201419- ch6- stpm 201320- Ch 9- stpm 2004
16.
17.
(b) elastic deformation: object returns completely to original dimensionsPlastic deformation:permanent deformation is produced.
18.
19
20
5