CHAPTER -IS MATTER AROUND US PURE ,FORECES AND LAW OF MOTIONS,TISSUE
SAMPLE TEST PAPER
CLASS –IX
SUBJECT – SCIENCE
TIME ALLOWED: 1:30 Hrs.
MAXIMUM MARKS: 40
General Instructions:
i.This question paper contains 18 questions. All questions are compulsory.
ii.Questions no. 1 to 5 are MCQ, carrying and 6 and 7 reason and
assertion question
1mark each.
iii.Questions no. 8 to 12 are very short answer type questions, of 2 marks
each.
iv.Questions no. 13 to 15 are short answer type questions, of 3 marks each.
v.Question no. 16 is case based question, carrying 4 marks.
vi.Questions 17 and 18 are long answer type questions, carrying 5 marks
each.
vii.Wherever necessary, neat and properly labeled diagrams should be drawn.
|
1 |
Bronze is a (a) Compound (b) Elements (c) Homogeneous (d) Heterogenous |
1 |
|
2 |
Which of the following properties does not
describe a compound? (a) It is composed of two or more elements (b) It is a pure substance. (c) It cannot be separated into constituents by
physical means (d) It is mixed in any proportion by mass |
1 |
|
3 |
Bone cells are embedded in a hard matrix that is
composed of (a)Calcium and sulfuric compounds (b) Calcium and phosphorous compounds (c ) Calcium and oxygen compounds (d) Calcium and chlorine compound |
1 |
|
4 |
Raju has hurt his leg during a football match.
His doctor gives him some pain killer. Which tissue it likely to
be affected by the pain killer? (a) Muscular Tissues (b) Nervous Tissues (c) The bone (d) Epithelial tissue |
1 |
|
5 |
If the mass of the body is doubled and its
velocity becomes half, then the linear momentum of the body will a)become double b)remain the same c)become half d)become four times |
1 |
|
6 |
ASSERTION AND REASON (1MARK) Question No. 6 to 7 consist
of two statements – Assertion (A) and Reason (R). Answer these
questions selecting the appropriate option given below: (a) Both the Assertion and the Reason
are correct and the
Reason is the correct explanation of the Assertion (b) Assertion and the Reason
are correct but the reason
is not the correct
explanation of Assertion (c) Assertion is true but the Reason
is false The statement of the Assertion is false but the Reason
is true. Assertion: Permanent
tissue is composed of mature cells. Reason: Meristematic tissue is
a group of actively dividing cells. |
1 |
|
7 |
Assertion : A body is
momentarily at rest when it reverses the direction. Reason : A body cannot have
acceleration if its velocity is zero at a given instant of time. |
1 |
|
8 |
Suppose
a ball of mass m is thrown vertically upwards with an initial speed
v, its speed decreases continuously till it becomes zero. Therefore, the
ball begins to fall downward and attains the speed v again before striking
the ground. It implies that the magnitude of initial and final momenta
of the ball are the same. Yet, it is not an example of conservation
of momentum. Explain why?. |
2 |
|
9 |
Neha is walking on
the road. Describe her walking in terms of Newton’s third law of motion. |
2 |
|
10 |
There are three balls made up of aluminium, steel
and thermocol , of the same shape and same volume. Which of them will
have the highest inertia? |
2 |
|
11 |
Differentiate
the following activities on the basis of voluntary (V) or involuntary
(IV) muscles. (a)
Jumping of frog (b)
Pumping of the heart (c)
Writing with hand (d)
Movement of chocolate in your intestine |
2 |
|
12 |
Water hyacinth floats on water surface. Give
reason |
2 |
|
13 |
Why are
xylem and phloem called complex tissues? How are they different
from one other ? |
3 |
|
14 |
A nail is inserted in the trunk of a tree at a
height of 1 metre from the ground level. After 3 years, where will the nail
be present? Give reason |
3 |
|
15 |
Sonu and his
friends took an old shoe box and covered it with a black paper from
all sides. They fixed a torch at one end of the box by making a hole in it
and made another hole on the other side to view the light. They placed a
glass of milk in the box . They were amazed to see that milk taken in the
tumbler was illuminated. They tried the same activity by taking a
salt solution but found that light simply passed through it. a) Explain
why the milk was illuminated. Name the phenomenon involved. b)Same
results were not observed with a salt solution. Explain. c) suggest
two more solutions which would show the same effect as shown by the
milk solution? |
3 |
|
16 |
CASE- Milk is actually a mixture of water, fat,
proteins etc. When a scientist says that something is pure, it means
that all the constituent particles of that substance are the same in their
chemical nature. A pure substance consists of a single type of particles.
The elements and compounds comes under the pure substances. As we
look around, we can see that most of the matter around us exist as
mixtures of two or more pure components, for example, sea water,
minerals, soil etc. are all mixtures.Depending upon the nature of the
components that form a mixture, we can have different types of mixtures;
homogeneous and heterogeneous mixture. Q1. How will you describe a pure substance? Q2. Give two examples of a compound? Q3. Air is a homogeneous mixture. justify the
statement. |
4 |
|
17 |
a)
Differentiate between a true solution and a colloid. b)
Distinguish between compounds and mixtures. |
5 |
|
18 |
Using
the second law of motion, derive the unit of force. A force
of 5 N produces an acceleration of 8 m s-2on a mass m and an acceleration
of 24 m s-2 on a mass m 2. What acceleration would the same force
provide if both the masses are tied together? |
5 |
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