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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Book back Questions in class 10 Science Subject. It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
How does an astronaut float in a space shuttle?
2.
Why a spanner with a long handle is preferred to tighten screws in heavy vehicles?
3.
State the principle of moments.
4.
Differentiate mass and weight.
5.
Classify the types of force based on their application.
1.
(i) Since, space station and astronauts have equal acceleration, they are under free fall condition.
(ii) Both the astronauts and the space station are in the state of weightlessness.
(iii) They are not actually floating but falling freely around the earth due to the huge orbital velocity.
2.
(i) A spanner has a long handle to produce a larger moment of force by a small force applied normally at the end of its handle.
(ii) Moment of force = \(\overrightarrow{\mathbf{F}} \times \overrightarrow{\mathrm{d}}\)
3.
(i) When a number of like or unlike parallel forces act on a rigid body and the body is in equilibrium, then the algebraic sum of the moments in the clockwise direction is equal to the algebraic sum of the moments in the anti-clockwise direction.
(ii) Moment in clockwise direction = Moment in anticlockwise direction.
(iii) F1 x d1 = F2 x d2.
4.
| S. No | Mass | Weight |
|---|---|---|
| (i) | Fundamental quantity. | Derived quantity. |
| (ii) | It is the amount of matter containing in a body. | It is the gravitational pull acting on the body. |
| (iii) | Its unit is kilogram (kg). | Its unit is newton (N). |
| (iv) | Remains the same. | Varies from one place to another place. |
| (v) | It is a scalar quantity. | It is a vector quantity. |
5.
Based on the direction in which the force acts, they can be classified into two types as:
(i) Like Parallel forces
(ii) Unlike Parallel forces.
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
