Periodic Test-III Examination 2024-25
Class: IX
Subject: Science
Time – 90 mins M.M.-40
General Instructions:
This question paper consist of three sections. Section A, B and C
Section A consist of Biology which carries 13 marks.
Section B consists of Chemistry which carries 13 marks.
Section C consists of Physics which carries 14 marks.
All questions are compulsory.
Biology
MCQs
Q.1 Voluntary muscles are found in ………….
a) brain
b) spinal cord
c) tendons
d) nerves
Q.2 The dead element present in the phloem is
a) companion cells
b) phloem fibres
c) phloem parenchyma
d) sieve tube
Q.3 The living cells present in a compact bone are
called
a) chondroblast
b) adipocytes
c) osteoblasts
d) sclereids
Q.2 What is a cartilage? How is it different from a
bone? (2)
Q.3 Draw the labelled diagrams of muscles. (3)
Q.4 Name the following:- (5)
a) tissue that forms in a lining of mouth
b) tissue that connect muscles to bone in human
c) tissue that transport food in plant
d) tissue that store fat in our body
e) tissue present in the brain
Chemistry
Multiple choice questions.
3
1. In water the proportion of Oxygen and hydrogen
by mass is
a. 1:4. b. 1:8. c. 4:1. d.
8:1
2. The atomic number of an element X is 8 and
that of element is Y is 4. Both these elements can
exhibit a valency of
a. 1. b. 2. c. 3. d. 4
3. The law of conservation of mass was given by
a. Dalton. b. Proust. c. Lavoisier. d.
Berzelius
4. State the law of conservation of mass. Give one
example to illustrate this law.
2
5. a. Calculate the molecule mass of Ethane,
C2H6.
( Atomic masses: H= 1 u, C= 12u)
b. Write the electronic configuration of the
element with atomic number 17. Indicate the
valency the elements. 3
6. a. Describe the Rutherford's model of an atom.
State one drawback of Rutherford's model of the
atom.
b. Hydrogen and oxygen combine in the ratio of
1:8 by mass to form water. What mass of Oxygen
gas would be required to react completely with 3
gram of hydrogen gas?
5
physics
Multiple choice questions(4 marks)
1. Objects in motion possess energy and can do work; this
energy is called
a.Solar energy
b.Thermal energy
c.Potential energy
d.Kinetic Energy
2.The S.I. unit of upthrust is:
(A) Pa
(B) N
(C) kg
(D) kg m2
3. If a force acting on a body causes no displacement, the work
done is—————
a.-1
b.1
c.0
Infinity
4.The volume of a small ball is calculated to be 25
cm3 and it weighs 30 g in air. Will this ball float or sink in
water?
a.Sink
b.Partially sink
C.Float
d.Can not be predicted from the given information
very short answers (2 marks)
1.Write an expression for the kinetic energy of an object. And it’s
SI unit.
2.state archimedes principle
short answers ( 3 marks)
1.The volume of 50 g of a substance is 20cm3. If the density of
water is 1 gcm−3, will the substance float or sink?
2.A pair of bullocks exerts a force of 140 N on a plough. The field
being ploughed is 15 m long.How much work is done in
ploughing the length of the field.
Long answers( 2+3=5 marks)
1.a)The volume of 50g of a substance is 20cm3. If the density of
water is 1g/cm3, will the substance sink or float when placed on
the surface of water? What will be the mass of water displaced
by the substance?
b)A body of mass 3.5 kg displaces 1000 cm3 of water when fully
immersed inside it. Calculate
(i) The volume of body (ii) The upthrust on body (iii) The apparent
weight of body in water.
. 5
