Tuesday, July 31, 2012

CBSE_NCERT_VI Assignments: Science: CH-6 Measurement and Motion

VI assignments: Science: CH-6 Measurement and Motion

Note- Question no. 1 to 17carried 2 marks, question No. 18 to 20 carry 3 marks.

1. Give two examples of measurement that are important in our day to day life.
2. Why do stars appears to be at rest, though they are moving very fast?

3. Is the hour hand of a clock at rest or in motion when the clock is on the wall and showing time ?

4. What kind of watch is used to measure time in a sport event and why?

5. Why does the shape of the ointment tube change when we squeeze it ?

6. A train covers a distance of 120 kms from Faridabad to Agra. Convert this distance into meters.

7. Write a note on the pendulum of Big Ben House of parliament, London.
8. A 30 cm scale has a broken end. The mark at the broken end is 1.6 cm.

a) Which mark of this scale will you use for measuring the length of an object.

b) How much will you subtract from the scale reading at the length of an object to get the correct length.

9. If we blow air from our mouth on a burning agarbatti, the smoke rises up from it, Why ?

10. A man riding a scooter travels a distance of 50m .Convert it into cms and kms.

11. What are Physical quantities?

12.What is the importance of measurement of time in our life?

13. What are digital clocks.?

14. Define rest and motion with the help of example.

15. Write a note on “STOP CLOCK”.

16.Write the S.I. units for three basic physical quantities- length, time & mass.

17.Define “Force”?.Give two examples.

18. Classify the following motions into different types—

a). Cyclist on a straight, plane road b). Plucked string of a sitar
c) Tip of hand of a clock d). A tone falling from a rooftop

d). Motion of a swing e). A player playing football

19.Define the following (a) Rectilinear Motion (b)Oscillatory Motion(c) Rotational Motion

20.While measuring the length of a knitting needle, the reading of the scale at one end is 3.0 cm and the other end is 33.1 cm. What is the length of the needle? 

Class 6 Getting To Know Plants mcq and NCERT Solution

VI Science: Getting to know Plants MCQ

1) The plants which have branches at the base are -----

a) Herbs    b) Shrubs     c) Creepers     d) Trees

2) Which plant is the example of a herb?

a) Mango     b) China rose     c) Wheat     d) None

3) A plant with weak stem is ----

 a) Mint     b) Sunflower     c) Lemon     d) China rose

4)   The plant which takes the support of the neighboring structures and climbs up is

  a) Tree     b) Shrub     c) Creeper     d) Climber

5) The part of plant which grows above the ground is ----?

a) Shoot system     b) Root system     c) both a & b     d) None

6) The part of the stem in between two successive nodes is ----?

a) Pistil      b) Root     c) Node     d) Internodes

7) The root, stem leaves constitute the --- part of the plant body?

a) Vegetative     b) Reproductive     c) Both a & b     d) None

8) Flowers, Fruits & Seeds constitute the ---- part of the plant body?

a) Vegetative     b) Reproductive     c )Both a & b     d)None

9) The part of the plant which prevents soil erosion is?

a) Stem     b) Flower     c) Root     d) Leaves

10) Banana has -------   roots.

a) Tap      b) Lateral    c) Fibrous    d) None

11) Which of the following has tap root?

a) Wheat     b) Mango     c)Tulsi     d) Both a & b

12) Shoot system develops from ----- of the baby plant or embryo?

a) Cotyledons     b) Roots     c) Callus      d) plumule

13) Example of an incomplete flower is ----?

a)Pea     b)China rose     c) Date palm     d)Mustard

14) When a flower has all the sets of whorls it is described as ------ flower.

a) Complete    b) Incomplete     c) Zygomorphic     d) Actinomorphic

15) ------- bud helps in length wise growth of the plant.

a) Apical                 b) Axillary      c) Both a & b           d) None

16) Branches grow from - - - - - - - - -

a) Roots        b) Apical Buds             c) Axillary Buds      d) Stem

17) The ----------------- is the strongest part in a tree.

a) Stem         b) Root                  c) Trunk        d) None

18) Which of the following is a stem?

a) Turnip       b) Onion       c) Radish       d) Carrot

19) The region of attachment of the leaf with the stem is called the ----------------

a) Petiole       b) Lamina        c) Leaf margin                 d) Leaf Base

20) --------------- is a flowering plant with no leaves

a) Cuscuta     b) Coleus      c) Pistia                  d) Pea

21) Stomata help in -----------------

a) Respiration          b) Photo Synthesis    c) Transpiration        d) All of the above

22) A plant with verigated leaves is --------------------

a) Pea             b) Balsam    c) Coleus       d) Cuscuta

23) The food prepared by leaves is stored as -------------------

a) Starch       b) Sugars      c) Proteins     d) Fats

24) The other name for ovary is--------.

a)Stamen         b) Pistil       c) Carpel          d)Stigma

25) Pollen grains are produced in ------?

a)Flower       b) Ovaries      c) Anthers       d) Fruits.

ANSWER KEY  FOR  GETTING TO KNOW PLANTS

(1) b                       (2)c                        (3)a                        (4)d                        (5)d 
(6) a                       (7)b                        (8)c                        (9)c                        (10)d 
(11)d                     (12)c                      (13)a                      (14)a                      (15)a 
(16)c                      (17)c                      (18)b                     (19)d                     (20)a 
(21)d                     (22)c                      (23)a                      (24)c                      (25)c


Monday, July 30, 2012

C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics


       C.B.S.E.2012-Sample-Papers For SA-1

 IX-Physics: Chemistry : Biology : Mathematics
C.B.S.E.-2012-Sample-Papers-for-IX-Physics-(5-Sets)-Summative-Assessement-I
C.B.S.E.-2012-Sample-Papers-for-IX-Chemistry-(5-Sets)-Summative-Assessement-I
C.B.S.E.-2012-Sample-Papers-for-IX-Biology-(5-Sets)-Summative-Assessement-I
C.B.S.E.-2012-Sample-Papers-for-IX-Science  Set-1 -Summative-Assessment-I  
C.B.S.E.-2012-Sample-Papers-for-IX-Science  Set-2 -Summative-Assessment-I
C.B.S.E.-2012-Sample-Papers-for-IX-Science  Set-3 -Summative-Assessment-I
C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics  Set-1 -Summative-Assessment-I
C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics  Set-2 -Summative-Assessment-I
C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics  Set-3 -Summative-Assessment-I

Friday, July 27, 2012

CBSE PHYSICS: X Magnetic effect of current CBSE Test paper solved

                               CBSE TEST PAPER -2012-13
 Time: 1hr.  CHAPTER: MAGNETIC EFFECT OF CURRENT        FM: 30
1. A positively charged particle (alpha-particle) projected towards west is deflected towards north by magnetic field. The direction of magnetic field is          
(a) towards south (b) towards east (c) downward (d) upward.
2. A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each   
(a) two revolutions (b) one revolution (c) half revolution (d) one-fourth revolution.
3. Permanent magnets are made up of
(a) Alnico     (b) soft iron  (c) copper (d) aluminum.                            
4. Which of the following properties of a proton can change when it moves freely in a magnetic field
(a) Mass              (b) speed              (c) velocity           (d) momentum
5. The direction of the magnetic field at a point P above the wire carrying current is
(a) Down the page (b) up the page  (c) into the page   (d) out of the page
6. An alternating current has frequency of 50 Hz. How many times does it change its direction in one second?
7 . What is the advantage of the third wire of earth connection in domestic appliances?
8.  What is the S.I. unit of magnetic flux ?
Ans:  Weber : The magnetic flux linked with a surface is defined as the number of magnetic field lines passing normally through that surface.
9 . How can we increase the speed of a D.C. motor?
10. Why do not two magnetic field lines intersect each other?
11. What is a solenoid? Draw magnetic field lines showing the magnetic field inside and outside the current carrying solenoid?
12. (a) What is short circuiting? (b) What is overloading? How can you avoid overloading?
13. What are the ways to detect the polarity of a current carrying solenoid?
14. Consider a circular loop of wire lying in the plane of the table. let the current pass through the loop clockwise. Apply the right hand rule to find out the direction of magnetic field inside and outside the loop?
15. What is the orientation of a current caring conductor relative to the direction of magnetic field for
(a) Maximum magnetic force.              (b) Minimum magnetic force
   For Online Help Log to www.jsuniltutorial.weeebly.com
                     CBSE TEST PAPER -2012-13 Answers

Thursday, July 26, 2012

CBSE PHYSICS: MCQ:Sound and Its Reflection

      Chapter Sound and Reflection of sound
       Objective:  Multiple choice Questions
1. A sound wave travels from east to west, in which direction do the particles of air move?
(A) East – west                           (B) North - south
(C) Up and down                         (D) None of these
2. In which medium sound travels faster ?
(A) Solid                                     (B) Liquid
(C) Gas                                      (D) None of these
3. What is the name of short duration wave?
(A) Pulse                                    (B) Frequency
(C) Time period                           (D) Velocity
4. What is the velocity of sound in water at room temperature?
(A) 1500 m/s                              (B) 330 m/s
(C) 1500 km/s                             (D) 330 km/s
5. The unit of quantity on which pitch of the sound depends is :
(A) Hertz                                    (B) metre
(C) metre/second                        (D) second
6. The unit of quantity on which loudness of found depends is :
(A) metre                                   (B) Hertz
(C) metre/second                        (D) second
7. Nature of sound wave is :
(A) transverse                             (B) longitudinal
(C) electromagnetic                      (D) seismve
8. Pitch of high frequency sound is :
(A) high                                     (B) low
(C) zero                                     (D) infinite
9. Voice of a friend is recognized by its :
(A) Pitch                                     (B) quality
(C) Intensity                               (D) velocity
10. Sound waves in air are :
(A) Longitudinal waves                  (B) Radio waves
(C) Transverse waves                            (D) Electromagnetic waves
Ans: . 1-A  2-A  3-A  4-A  5-A  6-A  7-B  8-A 9-B 10-A
        Objective:  Fill in the blanks
1. Pitch is the sensation  of the ---------- of an emitted sound.
2. A high pitch sound is called a ------ sound
3. A low pitch sound is called a -----------  sound.
4. Loudness of sound wave is ditectly proportional to -------- amplitude
5. The sound energy transferred per unit area per unit time is called -------- of sound.
6. When a body moves with a speed which is greater than the speed of sound in air, it is said to be traveling at --------------
7. When wound waves traveling in air enter into the medium of water, ------- remains unchanged
8. Sound travels faster as the  ------------ of the medium increases by 0.61 m/s with every 1 deg C 9. -----is an apparatus which is used to find the depth of a sea or to locate the under water things.
10. A sound wave of single frequency is called ---------
Ans:
1. Frequency
2. shrill
3. hoarse
4. Square
5. intensity
6. supersonic speed
7. Frequency
8. temperature
9. Sonar
10.Tone