Good Morning My Dear Friends. Someone Please Give me Question Papers on All Subjects For Class Nine ISCE...
Please Give Me Here In Brainly Itself , Please
Answers
The Hindustan Times, New Delhi-110001.
Sir,
It is through your esteemed newspaper that I would like to draw the kind attention of the authorities of the Municipal Corporation towards the poor maintenance of the public park in our area.
This is the only park in Sudershan Park. But the park has been turned into a dumping ground. There are heaps of dirt and litter all around. Some portion of it has been encroached by the property dealers and land owners of the adjoining area. Once the park used to be well maintained and lush green, having all seasonal flowers and decorative plants. Now it wears a deserted and abandoned look.
Residents of the area are, to a great extent, responsible for the neglected condition of the park. The park is used for wedding and other celebrations and left-overs are thrown here and there. This provides a grazing ground for the stray animals. They also produce dirt and litter.
I hope the concerned authorities will intervene to check the degeneration of the park and attempt to bring back the lost beauty of it.
Thanking you,
General Instructions: 1. Answers to this paper must be written on the paper provided separately. 2. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper.
3. The time given at the head of the paper is the time allotted for writing the answers. 4. Attempt all questions from Section I and any four questions from Section II. 5. The intended marks of questions or parts of questions are given in brackets [ ].
SECTION I (40 Marks) Attempt all Questions from this Section
Question 1 (a) Express one day in milliseconds.
(b) Why are the passengers' cabins in an aeroplane pressurized? (c) What does a straight line graph signify?
(d) Following table gives the distance travelled by a particle at different times. Time (s) 0
Distance (cm)
0
0.25 0.5 5
2
0.75 1 9
16
1.25 1.5 25
36 Draw a distance-time graph representing the motion of the particle. [2]
(e) What will be the magnitude and direction of the reaction force acting on a coin of 10 g lying on the surface of the floor? Take g = 9.8 m/s2
[2]
Question 2 (a) Distinguish between fundamental units and derived units.
[2]
(b) The earth attracts an apple. Does the apple also attract the earth? If it does, why does the earth not move towards the apple?
(d) In cold countries, ponds freeze only at the surface. Why? (e) Why do we wear woolen clothes in winter?
[2]
(c) An empty truck and a loaded truck are moving with the same velocity. On applying brakes, which truck will stop first and why?
[2] [2] [2]
[2] [2] [2]
Total Marks: 80 1Question 3 (a) Draw a graph of volume and temperature when 5 cm3 of ice at - 10oC is heated to form water at 10oC.
(b) A brass disc is fitted strongly in a hole in a steel plate. What will you do (heat or cool) with the system to loosen the brass disc from the hole?
steel brass (c) Which mirror forms the image of a wider region? Also, give relevant figure.
(d) You have learnt that plane and convex mirrors produce virtual images of the objects. Can we get real images under some circumstances? How? (e) Does the size of the mirror affect the nature of the image?
Question 4 (a) Which properties are common in all types of mechanical waves?
(b) Two point objects, P and Q are situated in front of a plane mirror at distances of 15 cm and 30 cm respectively on the same straight line. Calculate the distance between the object P and the image of Q.
[2]
(c) Select the waves of the frequencies which will not be audible to human beings: 15 Hz, 250 Hz, 100 Hz, 30000 Hz.
(d) How will you obtain (i) small resistance and (ii) large resistance from a few given resistances?
(e) How will you test whether a given rod is made of iron or copper?