AL Ghazali Smart Syllabus and 11th CLASS PHYSICS GUESS PAPERS 2021
ACCELERATED
LEARNING PROGRAMME (ALP) LAHORE, SAHIWAL, GUJRANWALA,
FAISALABAD, MULTAN,
BHAWALPUR,RAWALPINDI , DERA
GHAZI KHAN, AZAD KASHMIR, SARGODHA
11th CLASS PHYSICS GUESS PAPERS
CHAPTER NO. 1 MEASUREMENTS SHORT QUESTION:
1. What is
meant by the term precision? Explain briefly with an example.
2. If a
precise measurement is also an accurate measurement. Explain your answer.
3. What
are the dimensions and unit of gravitational F = GmM/r2.
4. Write
the dimensions of viscosity and angular velocity.
5. Show
that the famous “Einstein equation” E = mc2 is dimensionally
consistent.
6. What is
physical significance of dimension of physical
quantity?
7. Calculate
the distance covered by the light in free space in one year.
8. Write
down the two uses of dimension analysis.
9. Does a
dimensional analysis give any information of constant of proportionality that
may appear in an algebraic expression? Explain
LONG QUESTIONS:
1. Suppose
use are told that acceleration of a particle moving in a circle of radius r
with uniform speed v is proportional to some power of r say and some power of v say V. Determines
the power of r and V.
2. The
speed V of sound waves through a medium may be assumed to depend on i) The
density p of the medium ii) Its modulus of elasticity E which is the ratio of
sizes to strain. Deduce by the method of dimension, the formula for the speed of sound.
CHAPTER NO.2 VECTORS AND EQUILIBRIUM SHORT QUESTIONS:
1. Define
the terms: 1) Null Vector ii) Subtraction of vector
2. If two perpendicular vector have same magnitude, find the
angel between their sum and difference.
3. Write
down the steps for addition of vectors by rectangular component method.
4. Name
three conditions that could make ‘A. ‘B = 0
5. What is
a unit of vector? How can it be obtained?
6. Can you
add zero to a Null vector
7. Show
the sum and difference of two perpendicular vectors of equal lengths are also perpendicular and of
the same length.
8. How would the two vectors of same magnitude are oriented such
that resultant vector has magnitude equal to each vector.
9. Can the
product of two vectors be equal to the product of their products of their magnitude?
10.
What is scalars and vectors? Give example
11.
Two vectors of magnitude 10 each making angle
180 o with each other. Find the magnitude of their resultant.
12.
If A = 4i – 4j what is the orientation of A.
LONG QUESTIONS:
1. EXAMPLE
NO. 2.5
2. Explain
cross product or vector of two vector state right hand rule and give at least four characteristic.
3. Define vector product or cross product. Explain with right
hand rule and give four
characteristics of cross product.
4. NUMERICAL
NO. 2.6
5. NUMERICAL
NO. 2.15
CHAPTER NO. 3 MOTION
AND FORCE. SHORT QUESTIONS:
1. Define
Elastic and inelastic collision.
2. When
rocket re-enters the atmosphere, its nose becomes very hot, why?
3. Is the
range of projectile same for both angles of projectile of 30o and 60o?
If your answer is yes than prove it?
4. State law of conservation of momentum and write down its
mathematical form.
5. Define
projectile motion and derive the expression for the range of projectile?
6. At what
point or points in the path does a projectile have its minimum speed, its maximum speed?
7. Can the velocity of an object reverse the direction when
acceleration is constant? Explain
8. Define
isolated system with an example?
9. Water
flows out from a pipe at 5 kgs-1 and its velocity changes from 4 cm-1 to zero
on striking the wall. Find the force exerted by the water on the wall?
10.
When rocket re-enters the atmosphere, its
nose becomes very hot, why?
11.
What is the meant by Projectile motion?
Derive an expression for time of
flight?
12.
Show that the rate of change of momentum is
equal to force. 13.When a bullet is fired from a rifle why does the rifle move
back word.
Discuss it with reference to momentum.
14.A 15000 kg has its velocity reduced from 20 ms-1 to 15 ms-1 in 3.0 sec. How large was the regarding force.
LONG QUESTION:
1. State
and explain the law of conservation of linear
momentum.
2. What is projectile? Derive expressions of the i) Maximum Height ii) Horizontal range.
3. Find
angle of projection of a projectile for which its maximum height and horizontal range are equal.
4. Define
Elastic and Inelastic collision. Discuss elastic collision in one dimension and
show that velocity of approach is equal to the velocity of separation.
5. Find angle of projection of a projectile for which its
maximum height and horizontal range
are equal.
6. A boy
places a fire cracker of negligible mass in an empty can of 40 g mass. He plugs
the end with a wooden block of mass 200 g. After igniting the fire cracker, he
throws the can straight up. It explodes at the top of its path. If the block shoots out with a speed of 3
m/s, how fast will the can be going.
7. NUMERICAL
NO. 3.5
8. EXAMPLE
NO. 3.2
9. EXAMPLE
NO. 3.7 10.NUMERICAL NO. 3.10 11.NUMERICAL
NO. 3.11
CHAPTER NO. 4 WORK
AND ENERGY. SHORT QUESTIONS:
1. Define
conservation field. Give its two examples.
2. Define
work. Write its formula.
3. Differentiate
between conservative and non-conservative forces. Give example.
4. Define
work energy principle. Also write down its equations.
5. Define
escape velocity. Write its value.
6. Differentiate
between geyser and aquifer.
7. State
law of conservation of energy.
8. How
electrical energy can be obtained by using tides?
9. Explain
the methods i) Direct combustion
10.
Calculate the work done in Joule and in kilo
Joules in lifting a mass of 10 kg
at a steady velocity through a vertical height of 10 m.
11.A cub is dropped from a certain height, with breaks into pieces. What energy changes are involved?
12. What
sort of energy is in the following: a) compressed spring b) Water in high dam
13. What is
Biomass energy?
14. Write
merits and demerits of solar cells.
LONG QUESTIONS:
1. Define
escape velocity. Derive an expression of escape velocity and calculate its value on the Earth’s surface.
2. Define
absolute potential energy. Derive its mathematical expression.
3. Define
gravitational field. Show that gravitational field is conservative field.
4. NUMERICAL
NO. 4.3
5. NUMERICAL
NO. 4.7
6. NUMERICAL
NO. 4.8
7. EXAMPLE
NO. 4.2
8. NUMERICAL
NO. 4.4
9. EXAMPLE
NO. 4.3
CHAPTER NO. 5 CIRCULAR
MOTION. SHORT QUESTIONS:
1. Define
radian and find how many degrees are there in one radian?
2. Derive
the relation between radian, degree and revolution.
3. What is
difference between angular acceleration and
centripetal acceleration?
4. Prove
the relation between linear velocity and angular velocity.
5. What
does a diver change its body position before diving in the pool?
6. What
are real and apparent weight?
7. What is
the meant by centripetal force and why it must be furnished to an object if the
object is to follows a circular path.
8. What is
meant by moment of inertia? Give explain its
significance.
9. What is meant by angular momentum? State law of conservation
of angular momentum.
10.
When mud files off the tyre of a moving
bicycle. In what direction does it
fly?
11.
Find total kinetic of rolling of mass” and
radius” ‘r’ on horizontal smooth
surface.
12.
Explain how many minimum numbers of
geostationary satellites are required for global coverage of T.V. transmission.
13.
What is meant by INTEL SAT, At what frequency
INTEL SAT VI operates. 14.Show that
S = r theta
15. Why
Einstein views of gravitation are preferred than Newton’s view of gravitation explain.
16. Calculate
the critical velocity of satellite orbiting near earth’s surface. ( R=
6.4 x 10 8 m
17.A disc without slipping rolling down a hill of ripe 10 m. If the disc starts from rest at the top of the bill. What is the speed at the bottom?
18.Define Radian and degree and what the relation between them is. 19.Define geo-synchronous satellite and what its height above the earth is.
LONG QUESTIONS:
1. Explain
Rotational kinetic energy. Find rotational kinetic energy of a disc and hoop.
2. What
are geostationary satellites? Derive the relation/expression for radius of geostationary orbit.
3. NUMERICAL
NO. 5.6
4. NUMERICAL
NO. 5.3
5. NUMERICAL
NO. 5.10
CHAPTER NO. 6. FLUID
DYNAMICS. SHORT QUESTIONS:
1. Define
terminal velocity. Write its formula.
2. How a
dynamic lift is produced in an aero plane.
3. Derive
venture relation.
4. Why fog
droplets appears to be suspended in air.
5. What do
you mean by famine flow and turbulent flow?
6. How row
boats moving parallel in the same direction are pulled towards each other explain.
7. Explain,
how the swing is produced in a fast moving cricket/tennis ball?
8. State
and explain equation of continuity.
9. Water
flow through a hose whose internal diameter is 1 cm at a speed of 1 ms-1. What should be the diameter of nozzle if the
water is to emerge at 21 ms-1
10.
Define viscosity and drag force.
11.
What do you mean by laminar flow and
turbulent flow?
12.
Explain the working of a carburetor of a
motor car using Bernoulli’s
principle.
13.
Two bots moving parallel in the same
direction are pulled towards each
other. Explain.
14.
Write values of systolic and diastolic blood
pressure for a normal healthy mass.
15.
How a chimney works best.
LONG QUESTIONS:
1. State
Bernoulli’s theorem. Also derive Bernoulli’s
equation.
2. An
airplane wing is designed so that the speed of the air across the top of the wing is 450 ms-1 the speed of air
below the wing is 410 ms-1. What is the pressure difference between the top and
bottom of the wings? Density of air
= 1.29 kgm-1
3. What
gauge pressure is required in the city mains for a stream from a fire hose connected to the mains to
reach a vertical height of 15 m?
4. NUMERICAL
NO. 6.1
CHAPTER NO. 7 OSCILLATIONS. SHORT QUESTIONS:
1. Show
that is simple harmonic motion, the acceleration is zero when the velocity is
greatest and the velocity is zero when the acceleration is greatest.
2. What is
meant by free and forced oscillations?
3. Define
simple harmonic oscillator and driven harmonic
oscillator?
4. Describe
two common phenomena in which resonance plays an important role.
5. What
happens to the period of a simple pendulum if its length is doubled? What happens if the suspended
mass is doubled?
6. Does
period depend on amplitude of vibrating body?
Explain.
7. At
which position the velocity of a simple harmonic oscillator is maximum and minimum?
8. How
displacement and amplitude are related for mass spring system.
9. 
Prove that 𝜛 = √𝑘
𝑚
for mass spring system.
10.A man spring system is vibrating with aptitude 10 cm. Find its K.E. and P.E. Equilibrium positions when spring constant is 20 Nm-1.
LONG QUESTIONS:
1. Prove
that total energy of amass spring system remains constant.
2. What is
simple pendulum? Show that the motion of simple pendulum is simple harmonic motion. Also calculate the time period of
the simple pendulum.
3. NUMERICAL
NO. 7.1
4. NUMERICAL
NO. 7.3
5. NUMERICAL
NO. 7.4
6. \UMERICAL NO.
7.5
CHAPTER NO. 8 WAVES SHORT QUESTIONS:
1. Explain
the terms crest, trough, node and antinode.
2. As a
result of distant explosion, an observer senses a ground tremor and then hears the explosion.
3. How are
beats useful in tuning a musical instrument?
4. What does transverse wave reflecting from a denser medium
undergo a phase change of 180 o?
5. Astronomers
use the Doppler Effect to calculate the speed of distance stars. How?
6. Describe
the use of beats in tuning musical instruments.
7. What is
the affect on phase of a wave when it is reflected from a boundary?
8. What
are the factors upon which speed of sound in air depends?
9. What is
the difference between open and closed organ
pipe? 10.What does sound travel factor in solids than in gases? 11.What
is the effect of temperature be speed of sound in gas? 12.
LONG QUESTIONS:
1. Show
that vt = ve + 0.61t
2.
Derive Newton’s formula for the speed of
sound in air and describe the
1.
Define wave front and a ray of light.
2.
State Huygens’s Principle.
3. Describe the construction of Michelson’s interferometer with
the help of diagram.
4.
What is the difference between interference
and diffraction of light waves?
5.
Can visible light produce interference
fringes? Explain
6. Explain whether the Young’s experiment is an experiment for studying interference or diffraction
effects of light.
7. Could you obtain Newton’s rings with transmitted light? If
yes, would the patterns be different
from that obtained with reflected light.
8. Under what conditions two or more sources of light behave as coherent sources.
9. Why are
Polaroid sunglasses better than ordinary sunglasses?
10.
How would you distinguish
between plane polarized and un-polarized light? 11.What aspect of nature of
light is proved by phenomena of polarization?
12.What is Braggs Law? Write down its equation.
13.5000 lines per cm has been ruled on a diffraction grating. Find its grating element.
LONG QUESTIONS:
1. Discuss
in detail the Young’s double slit experiment to study the interference of light.
2. NUMERICAL
NO. 9.7