1. CLASS 11- HOLIDAY HOMEWORK
Subject: CHEMISTRY
1. Draft a rough outline/sketch of an investigatory project to be
performed in Lab.
2. Prepare a presentation (minimum ten slides) on any topic from your
syllabus.
SUBJECT: COMPUTER SCIENCE
Prepare a beautiful chart on any one of the following topics:
1. Python Programming
2. Open Source Softwares
3. Networking
4. GPS (Global Positioning System)
5. Networking Devices
6. 3G Technology
7. Technological Advancements
8. IT Companies
SUBJECT: MATHEMATICS
2. Get an interesting information on pastel sheet in the field of Mathematics or a
brainstorming Mathematical puzzle from Internet for the Mathematics
exhibition.
3. Revise the chapters that are completed before vacations
4. CATCH THE SUDOKU CRAZE!
A hit in Japan for a long time, this number game is becoming all the rage here
in India. To win, you have to put a number from 1 to 9 in each square so that:
• Every horizontal row and vertical column contains all nine numerals (1-
9) without repeating any of them.
• Each of the 3 x 3 boxes has all nine numerals, none repeated .
2. • Both the shaded diagonals that form X have all nine numerals, none
repeated.
• If you want even more of a challenge, try timing yourself too.
15 minutes, you are an expert
30 minutes, you are no slouch either.
60 minutes or more, may be numbers are not your thing.
2 5 6
1
6 8 1
2 1 9
9
3 1 7
6 7 2 4 3 1
9
8 3 7
You can try some other sudoku puzzles from the newspaper with your morning
breakfast.
5. Complete the assignment in your notebook:
Prove by PMI that
1. the sum of the cubes of the three consecutive natural numbers is divisible by
9.
2. 32n
when divisible by 8, the remainder is always 1.
3. 52n+2
– 24n – 25 is divisible by 576 for every natural number n.
4. 11n+2
+ 122n+1
is divisible by 133 for every natural number n.
3. 5. x2n-1
+ y2n-1
is divisible by x + y for every natural number n.
6. n(n + 1)(2n + 1) is div. By 6 for every natural number n.
7. 3n
> 2n
for every natural number n.
8. 2n
> 3n for every natural number n > 4.
9. 2
1 1 1 1 1
1 2 2, .
4 9 16
n n N
n n
+ + + +⋅⋅⋅⋅⋅⋅⋅+ < − ∀ ≥ ∈
SUBJECT: ENGLISH
Read the novel ‘The Canterville Ghost” by Oscar Wilde and do the following
assignment in a separate copy.
1. Author’s Profile
2. Theme of the novel
3. Plot
4. Technique/style
5. Character Sketch of Virginia, Mr. Hiram B. Otis, Sir Simon’s Ghost and
Mrs. Otis.
6. Questions:
a) What is the theme of ‘The Canterville Ghost’?
b) Who is the protagonist of the novel and why?
c) “Never in a brilliant and uninterrupted career of three hundred years, had he been
so grossly insulted”. Substantiate.
4. d) Describe the Garden of Death.
e) Throw some light on the plot of The Canterville Ghost.
f) Virginia is a gentle soul and is full of kindness for the ghost.How does she help
the Canterville Ghost to escape from his present state.
SUBJECT: PHYSICS
1. To make a project / working model based on any one of following topics.
(a) Conservation of energy
(b) Application of fundamental forces
(c) Resonance in oscillations
(d) Archimedes principle
(e) Pascal’s Law
(f) Bernoulli’s theorem
(g) Impulse- momentum theorem
(h) Work-energy theorem
(i) Laws of planetary motion
(j) Applications of elasticity
ASISGNMENT
(Kinematics I)
1. A body covers 200 cms. in first 2 seconds and 220 cms. in next 4 seconds.
Velocity of the body at the end of the 7th second is
(A) 10 cm/sec. (B) 20 cm/sec. (C) 190 cm/sec. (D) 140 cm/sec
5. 2. A particle moves in a plane with constant acceleration in a direction
different from the initial velocity. The path of the particle is
(A) a straight line (B) an arc of circle (C) a parabola (D) an ellipse
3. A particle is moving along a straight-line path according to the relation s2
=
at2
+ 2bt+ c s represents the distance travelled in t seconds and a, b, c are
constants. Then the acceleration of the particle varies as
(A) s–3
(B) s3/2
(C) s–2/3
(D) s2
4. A train of 150 m length is going towards north direction at a speed of 10
ms–1
. A parrot flies at a speed of 5 ms–1
towards south direction parallel to
the railway track. The time taken by the parrot to cross the train is equal to
(A) 12 s (B) 8 s(C) 15 s (D) 10
5. A body travels 2 m in the first two-second and 2.20 m in the next 4 second
with uniform deceleration. The velocity of the body at the end of 9 second is
(A)– 10 m/s(B) – 0.20 m/s(C) – 0.40 m/s(D) – 0.80 m/s
6. A body released from the top of a tower falls through half the height of the
tower in 2 s. In what time shall the body fall through the height of the tower
(A) 4 s (B) 3.26 s (C) 3.48 s (D) 2.828 s
7. If you were to throw a ball vertically upward with an initial velocity of 50
m/s, approximately how long would it take for the ball to return to your
hand? Assume air resistance is negligible
(A) 2.5 s (B) 5.0 s (C) 7.5 s (D) 10 s
8. A ball is thrown vertically upward. It has a speed of 10 m/sec when it has
reached one half of its maximum height. How high does the ball rise? Take
g = 10 m/s2
(A) 10 m (B) 5 m (C) 15 m (D) 20 m
9. From a balloon rising vertically upwards at 5m/s , a stone thrown up at
10m/s relative to the balloon. Its velocity with respect to ground after 2s
is(g= 10m/s2
)
(A) 20m/s (B) 10m/s (c) 5m/s (d) zero
10.A car accelerates from rest at constant rate for first 10 seconds and covers a
distance x. It covers a distance Y in next 10s at the same acceleration. Which
of the following is true?
(A) x=y (B) x=3y (C) y=2x (D) y=3x
6. 11. A car and a bike with the same kinetic energy are brought to rest by the
application of brakes, which provide equal retarding forces. Which of them
will come to rest in a shorter distance?
12. If a body has constant speed, is it true that it can have acceleration?
13. Under what Condition the magnitude of average velocity of a particle is
equal to the average speed?
14. The displacement of a body is zero. Is the distance covered by it also
necessarily zero? What will be the nature of velocity-time graph for a
uniform motion?
15. Give an example where particle has zero velocity but finite acceleration
16. Give some important feature of uniform motion
17. A body moves through distance x from point a to b and return back to a by
same path. What will be the distance and displacement covered by the body.
18. What are the characteristics of displacement
19. Explain how a moving object can be considered as a point object.
20.Draw the position time graphs for two objects initially occupying different
positions but having zero relative velocity
21. A jet plane is moving with a velocity of 800 km/hr. The gases are ejecting
from rear of jet plane with velocity of 1600 km/hr with respect to jet. Find
the velocity of gases w.r.t a person on ground.
22. A train moves from point A to B with speed of 50km/hr and returns back
from B to A with speed of 40 km/hr. calculate average speed and average
velocity.
23. Define uniform velocity, variable velocity and instantaneous velocity.
24. Two balls are thrown simultaneously one vertically upwards with speed of
20m/s from the ground and other vertically downwards from height of 40m
with same speed and in same line of motion. At which point will they
collide.
25. A bomb is dropped from aeroplane when it is at the height of 9000m.
Aeroplane is moving with velocity 400 km/hr. Will bomb hit the target at
height 9000m from aeroplane?
26. Trains A and B of length 600m each are moving on two parallel tracks with
a uniform speed of 60km/hr. in same direction with A ahead of B. B
accelerates with 1m/s2
to overtake A. If after 50sec. the guard of B just
brushes past the driver of A, what was the original distance between them?
27. If a body travels half its total path in the last second from rest, calculate the
time and height of its fall (h=57.11m, t = 3.414s)
28. A ball is thrown vertically upward. After some time it returns back to earth.
Draw speed-time graph for the ball (neglect air resistance)
29. Can an object be accelerated without speeding up or slowing down
7. 30. Derive the equations of motion by graphical methods
31. A ball is thrown upward with a speed of 3 m/s from the tower of 50 m high.
Find the speed with which it strikes the ground.(31.45 m/s)
32. A stone falls from a tower and travels 10 m in the last second before it
reaches the ground. Find the height of the tower. (561m)
33. A boy wants to climb to the top of a vertical pole 13 m high .He climbs 5m
in 1s then slips 3m in 1s.This process repeats. Plot x- t graph. Also find the
time taken by the boy to reach the top of the pole.l (9s)
34. Two trains A and B are running on two parallel tracks. Train A moves with a
speed of 40km/hr due east and train b moves with a speed of 60km/hr due
West.Calculate (a) the velocity of train A with respect to train B (b) velocity
of B with respect to A (c) velocity of ground with respect to A (100km/hr,-
100km/hr,-40km/hr)
35. A boy runs from his home to the market 1 km away. He reaches the market
in 30 minutes seeing the market closed he once runs back to his home and
stops after 15 minutes at his friend’s house, which is ½ km away from the
market. Calculate his average speed and m magnitude of average velocity
during the whole journey (2km/h and 0.67km/h)
36. A ball dropped from a height of 90 m on a floor. At each collision with the
floor, the ball loses one tenth of its speed. Plot the speed – time graph of its
motion between t=0 to 12 s.
37. Define non inertial frame of reference and give two examples.
38. If the displacement of the body is represented by y = t4
+ t2
+ t +1 then find
the
(a) Average velocity between 0 to 3s (b) average acceleration between 0 to 2s
39. A van starts with acceleration 2m/s2
.A mobike starts towards the car with a
velocity of 20m/s .If the mobike was 96 m behind the car at the start. Find
the time in which he overtakes the van.(8s)
40. A particle starts from (0,0) and moves along y axis to a point (0,25) m and
then (0,-25)m .Find the ratio between distance and displacement (3)
41. A boat which has a speed of 5km/h in still water crosses a river of width
1km along the shortest possible path in 15 minutes. Find the velocity of river
water in km/h. (3)
42. A particle moves so that the displacement x at time t is given by x2
= 1 + t2
.What is its acceleration ?
43. Define relative velocity. Draw a x-t graph for two bodies with zero
relative velocity.
44.Write two characteristics of a acceleration – time graph. Draw a-t graph
for a body dropped from a height.
