• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

CBSE Tuts

CBSE Maths notes, CBSE physics notes, CBSE chemistry notes

  • NCERT Solutions
    • NCERT Solutions for Class 12 English Flamingo and Vistas
    • NCERT Solutions for Class 11 English
    • NCERT Solutions for Class 11 Hindi
    • NCERT Solutions for Class 12 Hindi
    • NCERT Books Free Download
  • TS Grewal
    • TS Grewal Class 12 Accountancy Solutions
    • TS Grewal Class 11 Accountancy Solutions
  • CBSE Sample Papers
  • NCERT Exemplar Problems
  • English Grammar
    • Wordfeud Cheat
  • MCQ Questions

The Pull of the Earth – Maharashtra Board Class 9 Solutions for Science and Technology

The Pull of the Earth – Maharashtra Board Class 9 Solutions for Science and Technology (English Medium)

AlgebraGeometryScience and TechnologyHindi

Solution 1:

  1. The ratio g (earth) /g (moon) is equal to 6:1.
  2. The value of the acceleration due to gravity increases as we move from the equator to the pole.
  3. If the earth shrinks to half of its radius, its mass remaining the same, the weight of an object on the earth will become four times

Solution 2:

The Pull of the Earth - Maharashtra Board Class 9 Solutions for Science and Technology ( English Medium)-1(2)

Solution 3:

The Pull of the Earth - Maharashtra Board Class 9 Solutions for Science and Technology ( English Medium)-2(3)

Solution 4:

The following factors affect the value of g:

    1. Shape of the Earth: The Earth is not perfectly spherical in shape. It is slightly flattened at the poles and bulges towards the equator. The value of g is maximum (9.83 m/s2) at the poles as the polar radius is minimum, while it is minimum (9.78 m/s2) at the equator as the equatorial radius is maximum.
    2. The Pull of the Earth - Maharashtra Board Class 9 Solutions for Science and Technology ( English Medium)-3(4)
    3. Depth: In the interior of the Earth, on an average, the value of g is less than that at the Earth’s surface. As the depth below the Earth’s surface increases, the value of g decreases, and finally, it becomes zero at the centre of the Earth.

Solution 5.1:

Mass Weight
1 The mass of a body is the quantity of matter contained in it. The weight of a body is the gravitational force with which the Earth attracts it towards its centre.
2 It has magnitude but not direction. It has both magnitude and direction.
3 It does not change from place to place. It changes from place to place.
4 It can never be zero. It is zero at the centre of the Earth.
5 The SI unit of mass is kilogram. The SI unit of weight is newton.

Solution 5.2:

Universal gravitational constant Gravitational acceleration of Earth
1 Universal gravitational constant numerically equals to the force of attraction between two unit masses separated by a unit distance. Gravitational acceleration of the Earth is the acceleration produced in a body due to the gravitational force of the Earth.
2 Its value remains constant throughout the Universe. Its value changes from place to place.
3 It has magnitude but not direction. It has both magnitude and direction.
4 Its SI unit is Nm2/kg2. Its SI unit is m/s2.

Solution 6:

  1. The weight of a body is given by W = mg, where m is the mass of the body and g is the acceleration due to gravity. The value of g at the equator is less than that at poles. So, the value of g varies from place to place and m is the same everywhere.
  2. Hence, the weight of silver bought at the North Pole would be less when weighed at the equator. Therefore, Rahul’s friend will disagree about the weight of the silver.

Solution 7.1:

Data: W = 100N, g = 1.63 m/s2, m = ?
W = mg
The Pull of the Earth - Maharashtra Board Class 9 Solutions for Science and Technology ( English Medium)-4(7.1)
The mass of the body is 61.35 kg.

Solution 7.2:

Data: g = 9.8 m/s2,
Mp = 2Me, Rp =2Re, gp = ?
Acceleration due to gravity,
The Pull of the Earth - Maharashtra Board Class 9 Solutions for Science and Technology ( English Medium)-5(7.2)

Primary Sidebar

NCERT Exemplar problems With Solutions CBSE Previous Year Questions with Solutoins CBSE Sample Papers
  • The Summer Of The Beautiful White Horse Answers
  • Job Application Letter class 12 Samples
  • Science Lab Manual Class 9
  • Letter to The Editor Class 12 Samples
  • Unseen Passage For Class 6 Answers
  • NCERT Solutions for Class 12 Hindi Core
  • Invitation and Replies Class 12 Examples
  • Advertisement Writing Class 11 Examples
  • Lab Manual Class 10 Science

Recent Posts

  • Understanding Diversity Question Answer Class 6 Social Science Civics Chapter 1 NCERT Solutions
  • Our Changing Earth Question Answer Class 7 Social Science Geography Chapter 3 NCERT Solutions
  • Inside Our Earth Question Answer Class 7 Social Science Geography Chapter 2 NCERT Solutions
  • Rulers and Buildings Question Answer Class 7 Social Science History Chapter 5 NCERT Solutions
  • On Equality Question Answer Class 7 Social Science Civics Chapter 1 NCERT Solutions
  • Role of the Government in Health Question Answer Class 7 Social Science Civics Chapter 2 NCERT Solutions
  • Vital Villages, Thriving Towns Question Answer Class 6 Social Science History Chapter 9 NCERT Solutions
  • New Empires and Kingdoms Question Answer Class 6 Social Science History Chapter 11 NCERT Solutions
  • The Delhi Sultans Question Answer Class 7 Social Science History Chapter 3 NCERT Solutions
  • The Mughal Empire Question Answer Class 7 Social Science History Chapter 4 NCERT Solutions
  • India: Climate Vegetation and Wildlife Question Answer Class 6 Social Science Geography Chapter 8 NCERT Solutions
  • Traders, Kings and Pilgrims Question Answer Class 6 Social Science History Chapter 10 NCERT Solutions
  • Environment Question Answer Class 7 Social Science Geography Chapter 1 NCERT Solutions
  • Understanding Advertising Question Answer Class 7 Social Science Civics Chapter 7 NCERT Solutions
  • The Making of Regional Cultures Question Answer Class 7 Social Science History Chapter 9 NCERT Solutions

Footer

Maths NCERT Solutions

NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 11 Maths
NCERT Solutions for Class 10 Maths
NCERT Solutions for Class 9 Maths
NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 7 Maths
NCERT Solutions for Class 6 Maths

SCIENCE NCERT SOLUTIONS

NCERT Solutions for Class 12 Physics
NCERT Solutions for Class 12 Chemistry
NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 11 Chemistry
NCERT Solutions for Class 10 Science
NCERT Solutions for Class 9 Science
NCERT Solutions for Class 7 Science
MCQ Questions NCERT Solutions
CBSE Sample Papers
NCERT Exemplar Solutions LCM and GCF Calculator
TS Grewal Accountancy Class 12 Solutions
TS Grewal Accountancy Class 11 Solutions