Showing posts with label class10-science-paper. Show all posts
Showing posts with label class10-science-paper. Show all posts

Sunday, 13 September 2015

CBSE Class 10 - Science - 1 Mark Questions Asked in Previous Question Papers (SA1 2012-2014)

Class X Science - SA1 - 1 Mark Questions

CBSE Class 10 - Science - 1 Mark Questions Asked in Previous Question Papers (SA1 2012-2014)

Questions Asked in Question Papers From 2012 To 2014



Q1 (2012): Name the sensory receptor found in the nose.

Answer: Olfactory receptors to detect smell


Q2(2012): Name the sensory receptor found on the tongue.

Answer: Gustatory receptor to detect taste.


Q3(2012): Mention the angle between a current carrying conductor and magnetic field for which the force experienced by this current conductor placed in the magnetic field is the largest.

Answer: The force will be the largest when current carrying conductor and magnetic field direction is at right angle to each other.


Q4(2012): Name a metal which is preserved in kerosene.

Answer: Sodium


Q5(2012): Name a metal which can melt while kept on palm.

Answer: Gallium and Cesium


Q6(2012): Name the part of the brain which controls voluntary action.

Answer: cerebellum

Saturday, 18 July 2015

CBSE Class 10 - Science - SA1 Question Paper (2014)

Science - Question Paper (2014)

Class 10 Science  Question Paper (SA1 - September 2014)

CBSE Class 10 - Science - SA1 Question Paper (2014)

Time Allowed: 3 Hours                                                                            Maximum Marks: 90


General Instructions:
(i) The Question Paper comprises of two sections, A and B. Attempt both sections.

(ii) All questions are compulsory

(iii) All questions of Section A and all questions of Section B are to be attempted separately.

(iv) Question numbers 1 to 3 in Section A carry one mark each. These questions are to be answered in one word or in one sentence.

(v) Question numbers 4 to 6 in Section A are three marks questions. Answer each in about 30 words each.

(vi) Question Numbers 7 to 18 in Section A are three marks each. Answer each question not more than 50 words.

(vii) Questions 19 to 24 in section A are five marks each. Answer each question in not more than 70 words.

(viii) Questions numbers 25 to 33 in section B are multiple choice questions based on practical skills. Each question carries one mark.Select the most appropriate choice from the given choices.

(ix) Question Numbers 34 to 36 in Section B are questions based on practical skills and are two marks.
SECTION A
 Q1:Name the two components of peripheral nervous system? 1
 Q2: What are hot spots inside the earth's crust? 1
 Q3: A charge of 150 C flows through a wire in one minute. Find the electric current flowing through it. 1
 Q4: Explain why an aqueous solution of sodium sulphate is neutral while an aqueous solution of sodium carbonate is basic in nature. 2
 Q5: When hydrogen gas is passed over heated copper (II) oxide, copper and steam are formed. Write the balanced chemical equation for this reaction and state:
(i) the substance oxidised.
(ii) the substance reduced in the reaction.
 2
 Q6: Why do herbivores have longer, smaller intestine than carnivores?

Saturday, 20 September 2014

CBSE Class 10 - Science - SA1 - Sample Question Paper (2014-15)

Class X (Science) Sample Question Paper SA-I (2014-15)

Sample Q Paper by DPS Chandigarh.

Summative Assessment-I (2014-15)

Sample Question Paper - Class-X - SCIENCE - TIME : 3 ½ Hrs
Maximum Marks : 90
Instructions:
i) The question paper comprises of two sections, A and B. You are to attempt both the sections.
ii) All questions are compulsory.
iii) There is no overall choice. However, internal choice has been provided in all the three questions of five marks category. Only one option in such questions is to be attempted.
iv) All questions of section A and all questions of section B are to be attempted separately.
v) Questions 1 to 3 in section A are one mark questions. These are to be answered in one word or one sentence.
vi) Questions 4 to 6 in section A are two marks questions. These are to be answered in about 30 words each.
vii) Questions 7 to 18 in section A are three marks questions. These are to be answered in about 50 words each.
viii) Questions 19 to 24 in section A are five marks questions. These are to be answered in about 70 words each.
ix) Questions 25 to 33 in section B are multiple choice questions based on practical skills. Each question is a one mark question. You are to select one most appropriate response out of the four provided to you. Questions 34 to 36 in section B are two mark question.
Section A
1. What are biocatalysts?
2.Name any one metal which is found in its free state in nature.
3.Suggest any two reasons which make the large scale usage of nuclear energy prohibitive.
Name the type of the reaction and product formed when magnesium reacts with air or oxygen.
5.a) Name the gland which releases thyroxin.
b) State the function of thyroxin.
6.State two differences between artery and vein on the basis of
a) type of blood it carries b) valves
7.Differentiate between renewable and non-renewable sources of energy with one example for each.
8.Resistances of three resistors are given as R1=20Ω, R2 = 40Ω and R3 = 60Ω. Calculate the effective resistance when they are connected in series. Also calculate the current flowing when the combination is connected to a 6V battery.

Monday, 18 February 2013

CBSE Class 10 - SA2 Science Solved Sample Paper (2012-2013)


Class 10 -Science Sample Paper (SA2)


From this session (2012-2013), CBSE has stopped publishing Sample Question Papers (SQP). However it did release syllabus, marking scheme and solved sample questions including Value based questions. The same is displayed below.


You may download SA2 - 2012 papers from these links: QPaper-1, QPaper-2 and QPaper-3




Sunday, 15 January 2012

Class 10 - Science MCQs asked in CBSE Examination (SA-II)

Q1: Four students A, B, C, D perform experiment on tracing the path of light ray through a glass slab. The position of the pins used to describe incident ray is shown on paper by four of them, respectively as:
The correct result will be obtained by :
(a) A and D both
(b) B and D both 
(c)  B only 
(d)  B and C both

Answer: (d) B and C both

Q2: Teacher asked three students to write one precaution by each of them regarding the experiment on tracing the path of light ray through glass slab. First, second and third student wrote down following precautions, respectively
(1) While tracing emergent ray, we should see heads of pins.
(2) One eye should be kept closed, while tracing emergent ray
(3) Glass slab should have parallel edges.
The correct statements are of:
(a)  1 and 2
(b)  2 and 3
(c)  1 and 3
(d)  All three

Answer: (b) 2 and 3 (Note: We should see the feet of the pins.)

Tuesday, 18 October 2011

Class 10 Science SA-II Paper (Set 1)

Class - X - SCIENCE (2011)
Time : 3 hours                                                                                              Maximum Marks : 80
SECTION - A
1. Name the part of the human eye that helps in changing the focal length of the eye lens.   (1)
Answer: ciliary muscles (see more questions at link)

2. Write the next higher homologue of the following :                                                              (1)
     a. $C_3H_6$         b. $C_5H_8$
Answer: $C_4H_8 \text{ and } C_6H_10$ (more Q & A)

3. Select the biodegradable wastes from the following :                                                          
    DDT, Crop’s residue, Leather and glass                (1)

4. In a food chain consisting of snake, insect, grass and frog, assign an appropriate                
    trophic level to frog.(1)
Answer: grass <--  insect  <-- frog <--- snake
Frogs are placed at Secondary Consumers trophic level. (See chapter notes)

5. What is the cause of dispersion of white light passing through a prism ?  Which colour        
    of light deviates the -  
    (i) most              (ii) least.              (2)
Answer: Angle of deviation is different for different colours of light. See at Chapter Notes.