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Maharashtra State BoardSSC (English Medium) 10th Standard

Balbharati solutions for Science and Technology 1 [English] Standard 10 Maharashtra State Board chapter 1 - Gravitation [Latest edition]

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Solutions for Chapter 1: Gravitation

Below listed, you can find solutions for Chapter 1 of Maharashtra State Board Balbharati for Science and Technology 1 [English] Standard 10 Maharashtra State Board.


Exercises
Exercises [Pages 14 - 15]

Balbharati solutions for Science and Technology 1 [English] Standard 10 Maharashtra State Board 1 Gravitation Exercises [Pages 14 - 15]

1Page 14

Study the entries in the following table and rewrite them putting the connected items in a single row.

I II III
Mass m/s2 Zero at the centre
Weight kg Measure of inertia
Acceleration due to gravity
Nm2/kg2 Same in the entire universe
Gravitational constant N Depends on height
2.1Page 14

What is the difference between the mass and weight of an object?

2.1Page 14

Will the mass and weight of an object on the earth be same as their values on Mars? Why? 

2.2Page 14

What is the free fall?

2.2Page 14

What is the acceleration due to gravity?

2.2Page 14

What is escape velocity? 

2.2Page 14

What is centripetal force?

2.3Page 14

Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?

2.4Page 14

A stone is thrown vertically upwards with initial velocity u reaches a height ‘h’ before coming down. Show that the time taken to go up is the same as the time taken to come down.

2.5Page 14

If the value of g suddenly becomes twice its value, it will become two times more difficult to pull a heavy object along the floor. Why?

3Page 15

Explain why the value of g is zero at the centre of the earth.

4Page 15

Let the period of revolution of a planet at a distance R from a star be T. Prove that if it was at a distance of 2R from the star, its period of revolution will be \[\sqrt{8}\] T.

5.1Page 15

An object takes 5 s to reach the ground from a height of 5 m on a planet. What is the value of g on the planet?

5.2Page 15

The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A?

5.3Page 15

The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Assume that the acceleration due to gravity on the moon is 1/6th of that on the earth.

5.4Page 15

An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? How long will the object take to come back to the earth? Assume g = 10 m/s

5.5Page 15

A ball falls off a table and reaches the ground in 1 s. Assuming g = 10 m/s2, calculate its speed on reaching the ground and the height of the table. 

5.6Page 15

The masses of the earth and moon are 6 × 1024 kg and 7.4 × 1022 kg, respectively. The distance between them is 3.8 × 105 km. Calculate the gravitational force of attraction between the two?
Use G = 6.7 × 10–11 N m2 kg–2

5.7Page 15

The mass of the earth is 6 × 1024 kg. The distance between the earth and the sun is 1.5 × 1011 m. If the gravitational force between the two is 3.5 × 1022 N, what is the mass of the sun? Use G = 6.7 × 10–11 N m2 kg–2

Solutions for 1: Gravitation

Exercises

Balbharati solutions for Science and Technology 1 [English] Standard 10 Maharashtra State Board chapter 1 - Gravitation

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Concepts covered in Science and Technology 1 [English] Standard 10 Maharashtra State Board chapter 1 Gravitation are Concept of Gravitation, Kepler’s Laws, Earth’s Gravitational Force, Escape Velocity, Uniform Circular Motion (UCM), Force and Motion, Earth’s Gravitational Acceleration, Mass and Weight, Gravitational Waves, Weightlessness in Space, Law of Orbit or Kepler's First Law, Law of Areas or Kepler's Second Law, Law of Periods or Kepler's Third Law, Centripetal Force, Newton's Universal Law of Gravitation, Free Fall, Gravitational Potential Energy.

Using Balbharati Science and Technology 1 [English] Standard 10 Maharashtra State Board solutions Gravitation exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board Science and Technology 1 [English] Standard 10 Maharashtra State Board students prefer Balbharati Textbook Solutions to score more in exams.

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