# CBSE Class 9 Science Practice Paper SA-II: Set-X

Here you get the CBSE Class 9 Science Practice Paper for the SA-II, 2016-2017. The paper, framed as per the latest CBSE guidelines, includes all new and important questions to help the students prepare for the coming exams more effectively.

Jagranjosh.com, India’s leading education portal, presents CBSE Class 9 Science Practice Paper for Sumamtive Assessment-II, 2016-17. This practice paper is specially prepared by the subject experts after the brief analysis of previous year question papers. The paper contains entirely fresh  questions picked from the most important topics of Science. This paper will help the students in understanding the depth with which a topic should be studied.

About CBSE Science Practice Paper for SA – II, 2016-17:

Most of the CBSE schools follow the CBSE exam criterion while setting the CBSE Class 9 Science paper for SA-II.  Generally the level of questions asked in the question papers varies from school to school, but the topics from which the questions are extracted, are usually the same. So, this practice paper is prepared to help the students get acquainted with the important topics to be studied while preparing for the exam.

Importance of CBSE Class 9th Science Practice Paper, 2016 -2017:

This Science SA – II Practice Paper for CBSE Class 9, is set as per the latest CBSE exam pattern and aims at helping the students to prepare for the exam more effectively so as to get the desired results.

Solution for this practice paper will be out very soon. Till then, give it a try to solve the paper to check your preparation for the coming exams.

This Practice Paper will Help You:

• understand the latest examination pattern

• get aquainted to the important important topics to be studied for SA – II Science exam

Few sample questions from the Question Paper are given below:

Q. State the numerical value of Avogadro Constant.

Q. A person hears an echo from the top of a tower, 2.4s seconds after the second is produced. How far away is the tower from the person? Speed of the sound in air is 332m/sec.

Q. What is the number of electrons in Mg and Mg2+? Write their electronic configuration.

Q. Define pressure. State its SI unit. Why is it easier to cut an apple at sharp edge?

Q. (a) Explain Bohr and Bury rules for the distribution of electrons into different shells.
(b) Draw the electronic structure of element X with atomic number 17 and element Y with atomic number 16.

Q. A mass of 2 kg is to be raised to a height of 10 m. How much energy is required? Show in a graph, how this energy increases the velocity as it is allowed to fall (Take g = 10 m/s2).

Q. (a) Give the main points of the Bohr model of atom.

(b) What are its drawbacks?

Q. State the law of conservation of energy. Explain how this gets established with a freely falling mass.

Q. The body of a bird is covered by:
(a) Hair                                               (b) Dermal scales
(c) Feathers                                         (d) Spines.

Q. Mosquito larva breathes through:
(a) Spiracles                                        (b) Siphon
(c) Lung                                              (d) Spiracles and siphon both.

Q. To verify the laws of reflection of sound, why is it important to have a smooth reflecting surface?

Q. A spring balance used for measuring mass of the cuboid has a least count of 2gwt. Two students using the same spring balance noted two different readings, 32gwt and 35gwt. Which reading is correct and why?

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