Stress Free Examination
Board Master Stroke (SSC-X)- 2019
-Prof. Neelam Kulkarni
M.Sc. B.Ed . DIT, ACIT
I will be discussing some tips & tricks for perfect revision of science (I & II) before the examination. According to new question paper pattern, from this year (March 2019), S.S.C. board has introduced ‘activity sheets’ is the pattern and questions based on std. IX (9th) syllabus.
There will be two papers of science I & II each of 40 marks on separate days of 2 hours duration. We will consider SCIENCE (paper1) in this article.
Includes five types of questions, objective type carrying one mark each. It may contain following types of objective questions-
Ans- No displacement of the object
1 dyne = 1gm * 1cm/s2
Ans – True
4. Find odd one out & give reason (or justify) H2SO4, H2CO3, HCL, HNO3
Ans – H2CO3 is odd because all other acids are strong acids.
Q.1(B)-Includes five multiple choice questions (MCQS)- 1 mark each
Q.1)in biogas plant----------------gas is obtained.
Ans- In biogas plant methane gas is obtained. (a)
[One mark for each correct answer]
Q.2- It contains 7 questions of 2 mark each, only 5 questions to be solved, two correct points are expected, carrying one mark each.
The types of questions asked are- Solve numerical problems, write notes, write chemical reactions with equations, Complete the flowchart, differentiate between, write properties/advantages/effects - at least 4 correct points are expected.
Aditi saw small droplets on the outer surface of cold water bottle, which she kept out of fridge10 minutes ago. She asked the reason to her, what is reason teacher gave to her?
When air outside the cold surface, becomes condensed or saturated, water vapors are formed. The excess water vapors are converted into small droplets.
[for correct explanation 2 marks, the proper explanation is essential]
Question- If a ball falls off a table & reaches the ground in one second, if g=10m/s2 find height of the table
Data (given) - time (t)=1sec
height of the table?
According to newton’s 2nd law of motion, for free fall,
Formula- S = 1/2g t2
= 1/2 × 10×(1)2
Height of the table is 5m.
[correct formula- ½ mark, correct method to solve the numerical with correct unit- 1 ½ marks]
Q.3 - It includes 7 questions of 3 marks each, out of 7 question 5 questions are to be solved. Types of questions can be-
What is short circuit? Write its effect?
[Correct 3 points- 1 mark each]
c) With which of the elements, the element will resemble? N(7), Be(4), Ar(18), cl(17)
(Atomic number in brackets)
As the electronic configuration is 2,2. The outermost orbit has 2 electrons,
i.e. same as that of the given element
[For each correct answer- 1 mark each]
R1= Distance of earth from center.
W2= Weight at distance R1
W1=GMm/R12[G,M,m are constants]
W1= 1/4 W
∴ At a given distance , weight will be 1/4 the weight on earth.
[correct formula- 1-mark, correct answer written in a format – 1 mark]
[correct ray diagram-1 mark, correct labeling -1-mark, final image – 1 mark]
For question no 3 numerical are asked based on various formulae, so students should recall correctly. This will give full credit to them. Formulae that useful to solve the numerical.
Escape velocity of a body from the moon
It contains 2 questions of 5 marks each, out of which one is to be attempted. types of questions asked are
Question-1) Ramesh can’t see nearby objects clearly but distant objects are seen clearly.
Hypermetropia is corrected by using a proper convex lens. Light rays are converged by the convex lens before they fall on retina & eye lens.
A convex lens of proper focal length is used to produce correct & required convergence. So after rectification & due to convergence of convex lens the image is formed on retina as shown in the diagram.
[correct name of defect- 1 mark, converging power of lens- 1 mark, hypermetropia eye its rectification with labeled diagram- 3 mark]
Based on std 9th syllabus.
SCIENCE & TECHNOLOGY (II)
We will discuss the format of question paper & tips & tricks for science (paper II)
Q1 (A) 5 questions of 1 mark each
(B)5 questions of 1 mark each
Q1 (B) will be multiple choice questions (MCQ S)
Q1 (A) will include five questions with
[Correct answer -1mark]
2) state the statement- true or false ‘peripatus’ is a connecting link between Aschelminthes & Annelida’
Ans- The statement is false, ‘peripatus’ is a connecting link between Annelida & Arthropoda.
[Correct answer -1mark]
3) Explain the term- Siamese twins
Ans- The twins that are born with some parts of body joined to each other are Siamese twins.
[Correct answer -1 mark]
Q 1 B- 5MCQS-
Choose the correct alternative & rewrite the statement – 5 marks
1)------------------phase shows a notch in the cytoplasm in between the equatorial (central) plane
[Correct answer- 1 mark]
It contains 7 sub questions of 2 marks each. Only 5 sub questions to be attempted. Types of questions can be asked-
Ans- The process of movement of the ribosomes from m-RNA’S one end by the distance of triplet codon.
[Correct answer -1 marks]
[Correct answer – 1 mark]
Give scientific reason-
Que- Balanoglossus is a connecting link between Chordates & Non chordates.
Ans – Balanoglossus shows some characters of chordates & non chordates. It has notochord as in chordates. If shows gill slits as in non-chordates.
[Correct 2 Points- 1 Mark Each]
Question 3- There will be 7 questions, each with 3 marks, only five sub questions are to be solved. Types of questions asked can be
Question-your friend is addicted to tobacco chewing. What will you do for your friend? Why?
Ans- The hazards of tobacco chewing will be explained to my friend with the help of different photograph & pamplets, videos will be also showing to explain the ill effects & oral cancer pictures will be shown to explain my friend how dangerous & threatening it is. If needed counselor’s help can be advised to get rid of the bad habit.
[Correct explanation with 3 points – 3 marks]