10th Science Tamil Medium Assignment 2021 with Answerkey (TNSCERT ):- This is the full answer key for the 10th std sslc science subject first assignment with answers, IF you want to download the assignment topics and assignment answers, please use the download link in the below section
CLASS 10 PHYSICS ASSIGNMENT |
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Part – A |
I. Choose the correct answer |
1. Inertia of a body depends on————– | |
a) Weight of the object | b) acceleration due to gravity |
c) mass of the object | d) Both a and b |
Answer | c) mass of the object |
2. In a rocket, a large volume of gases produced by the combustion of fuel is allowed to escape through its tail nozzle in the downward direction with the tremendous speed and makes the rocket to move upward. Which principle is followed in this take off of the rocket? | |
a) Moment of inertia | b) Conservation of momentum |
c) Newton’s first law of motion | d) Newton’s law of gravitation |
3. There are two statements | |
A) Newton’s first law is valid from the pilot in an aircraft which is taking off | B) Newton’s first law is valid from the observer in a train moving with constant velocity Which of the following is correct? |
a) A only | b) B only |
c) Both A and B | d) Both A and B wrong |
4. Which of the following law is used to discover new stars and planets? | |
a) Newton’s first law | b) Newton’s second law |
c) Newton’s third law | d) Newton’s law of gravitation |
5. The Resultant force of two equal parallel forces acting in opposite direction in the same line of action is | |
a) Fnet = F1 + F2 | b) Fnet = F2-F1 |
c) Fnet = F2+F1 | d) Fnet=0 |
Part – B |
II. Short Answer |
11. Define Inertia. Give its classification | |
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12 If a 5N and a 15N forces are acting opposite to one another. Find the resultant force and the direction of action of the resultant force. | |
13. State Newton’s second law. |
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The force acting on a body is directly proportional to the rate of change of linear momentum of the body and the change in momentum takes place in the direction of the force. |
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Part – C |
III. Write in Detail |
18. What are the types of Inertia? Give an example for each type | |
Types of Inertia:
E.g.: When you vigorously shake the branches of a tree, some of the leaves and fruits are detached and they fall down (Inertia of rest).
The inertia of motion:
E.g.: An athlete runs some distance before jumping. Because this will help him jump longer and higher. (Inertia of motion)
E.g.: When you make a sharp turn while dr
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CLASS 10 CHEMISTRY ASSIGNMENT
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Part – A |
I. Choose the correct answer |
1. Number of electrons, protons and neutrons present in 17Cl35, 17Cl37 is——- ——– | |
a) 17e¯ , 17p+, 17n 17e¯ , 20p+, 19n |
b) 18e¯ , 18p+, 17n
17e¯ , 17p+, 19n
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c) 17e¯ , 17p+, 18n
20e¯ , 20p+, 17n
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d) 18e¯ , 17p+, 18n
17e¯ , 17p+, 20n
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Answer | |
2. Isobars are defined as——— | |
a) Elements show same atomic number with different mass number | b) Elements show same mass number with different atomic number |
c) Elements show same valency | d) None of these |
3. The Atomicity of Glucose molecule is ________ | |
a) 6 | b) 12 |
c)24 | d) 18 |
4. The mass of 5 moles of sodium is ————- | |
a) 46g | b) 34g |
c) 105g | d) 115g |
5. Number of atoms present in 3 moles of iron is——– | |
a) 6.023 x 1023 | b) 18.069 x 1023 |
c) 12.046 x 1023 | d) None |
Part – B |
II. Short Answer |
12. Define : Relative atomic mass | |
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13.Give any two examples for heteroatomic molecules | |
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14.Calculate the number of moles in 46 g of Sodium? |
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Part – C |
III. Write in Detail |
17.Give the salient features of “Modern Atomic Theory” | |
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CLASS 10 BIOLOGY ASSIGNMENT
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Part – A |
I. Choose the correct answer |
1. Who is the father of plant anatomy? | |
a) Sachs |
b) Nehemiah Grew |
c) Melvin Calvin | d) C.N.R.Rao |
Answer | |
2. The group of cells which are similar or dissimilar in structure and origin that perform similar function is called | |
a) Organ System | b) Vascular Bundles |
c) Tissues | d) Pericycle |
3. The pores present in Epidermis are called | |
a) Stomata | b) Cuticle |
cc) Trichome | d) Stele |
4. Xylem and Phloem are present in different radii of ———- | |
a) root | b) stem |
c) leaf | d) flower |
5. If xylem and phloem lie on the same radii that vascular bundle is ————– | |
a) radial bundle | b) conjoint bundle |
c) concentric and amphivasal | d) amphicribral |
Part – B |
II. Short Answer |
11.What are tissues? | |
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12.Classify the types of plant tissues. | |
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13.What are the functions of Dermal or Epidremal tissue system? |
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Answer:
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Part – C |
III. Write in Detail |
16.a)Differentiate the following Monocot root and Dicot root b) Draw a neat labelled diagram of Radial vascular bundle 17.a) Write the components and functions of plant tissue system. b) Classify the tissues based on their ability to divide |
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