|
Guess
Papers Model Papers & Solved Papers
We will help you
to get 100% marks.
You
can get 100% marks in all the subjects in a very limited time
preparing these GUESS PAPERS, MODEL PAPERS and SOLVED PAPERS which
are made for all the boards, colleges and universities of Pakistan
and are offered FREE of charges to everyone just to help students
in their education. These guess papers are either the property of YSAPAK
or downloaded from net.
|
|
|
|
|
These guess papers are prepared by the well known
teachers of the country having more than 25 years experience
of their
subject.
|
|
|
|
Do you want 100% Marks with less
effort? Then prepare the YSA Guess. Especially
designed for Karachi Board of Secondary Education (New
Pattern).
GUESS
PAPER PHYSICS -X
SECTION
A
Q.1 (a). Derive the equation S = Vit +
1/2at2.
Q.1 (b). Write the difference between
i. Mass and Weight
ii. Velocity and Speed
Q.1 (c). Write the contribution of Yaqub
Kundi.
Q.1 (d). S.I. unit of torque is
________.
Q.2 (a). Define a machine and name six
simple machines. Prove that the mechanical advantage of an
inclined plane is h/l = Sin0
Q.2 (b). Define equilibrium. Explain
three states of equilibrium with the help of diagram.
Q.2 (c). Calculate the kinetic energy of
an object of mass 40 Kg moving with the velocity of 40m/s.
Q.2 (d). Work is done when a body is
moved through a distance by a _________.
Q.3 (a). State law of Gravitation. Derive equation F=Gm1m2 /
d2
Q.3 (b). Define evaporation and write
three factors on which evaporation of liquid depends?
Q.3 (c). A shell is fired vertically
upward with a velocity of 98 m/s. Find the maximum height
reached by the shell.
Q.3 (d). The pin-hole camera was
invented by ________.
Q.4 (a). Define friction. Write its advantages and
disadvantages.
Q.4 (b). Define Volume. Write down the
formula for finding volume for a solid rectangular block,
sphere and cylindrical object.
Q.4 (c). A bus moving with a velocity of
30 Km/hr is brought to rest in 4 seconds, find its
declaration.
Q.4 (d). 47oC = Kelvin.
Q.5 (a). Define Momentum. State and explain law of
conservation of momentum with the help of an example and
diagrams.
Q.5 (b). Define Pressure. State Pascal's
Principle and give two examples of its application in daily
life.
Q.5 (c). Find the amount of heat
required to raise the temperature of 1000 gm of water from
20oC to 70oC. (sp. Heat of water = 4200 j/kgoC)
Q.5 (d). How do fish and other aquatic
animals survive in extremely cold water in rivers, lakes and
seas? (give scientific reason)
SECTION
B
Q.6 (a). What is the difference between
i. Ammeter and Voltmeter
ii. Insulator and Conductor
Q.6 (b). Write the uses of spherical
mirrors.
Q.6 (c). Find the potential difference
between the two ends of a conductor if its resistance is 15
ohms and a current of 700 miliamperes is passing through it.
Q.6 (d). We use a _________ to disperse
white light into different colours.
Q.7 (a). Explain the dual nature of light with the help of
quantum theory.
Q.7 (b). Define the following
i. Magnification
ii. Electric Field
iii. Pole
iv. Spectrum
Q.7 (c). The focal length of a convex
lense is one meter. An object is placed at a distance of 2m
before it. Determine its position, nature and magnification
of the image.
Q.7 (d). The most efficient method of
demagnetizing a magnet is to use an alternating current.
(Give Scientific reason)
Q.8 (a). What is a Capacitor? Write its unit of capacity and
define the factors on which it depends?
Q.8 (b). What are the main defects of
human eye? How are they removed?
Q.8 (c). A light bulb with a current of
0.06A is left burning for 15 min. How much electric charge
passes through the filament of the bulb?
Q.8 (d). If a low resistance is
connected parallel to a galvanometer it is converted into
_______.
SECTION
C
Q.9 (a). Write four precautions to
minimize the dangers of radiation.
Q.9 (b). When a sound wave of frequency
400 Hz and wavelength 3.5 m passes through a medium
calculate the velocity of the wave?
Q.9 (c). Write down the properties of y
rays.
Q.9 (d). What is the difference between
Forward bias and Reverse bias.
Q.10 (a). Define Simple Harmonic Motion.
Write down the characteristics of Simple Harmonic Motion.
Q.10 (b). Define Radar. Write its uses.
Q.10 (c). Find the time period of a
simple pendulum whose length is 140 cm.
Q.10 (d). The charge on proton is
_________.
|
|
|
|
|
