NCERT Solutions for Class 9 Science Chapter 10: Gravitation

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The NCERT Solutions for Class 9 Science Chapter 10 Gravitation are provided in this article. Some of the important topics of Class 9 Science Chapter 10 Gravitation include:

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NCERT Solutions for Class 9 Science Chapter 10

NCERT Solutions class 9 science chapter 10

Important Topics for Class 9 Science Chapter 10 Gravitation

Gravitation is the universal force of attraction that is seen to act between all matter. An object when thrown upwards, reaches a certain height and then falls downwards is the perfect example of seeing how gravity works.

Universal Law of Gravitation

The universal law of gravitation claims that every particle of matter found in the universe potentially attracts other particles with a force which is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.

The Universal Law of gravitation can be expressed as:
F = GM¹M²/R²

Wherein,

G = universal gravitational constant (Nm²/kg²)
R = radius of the heavier body (km)
M = mass of the heavier body (Kg)

Buoyancy

Buoyant Force can be defined as the force via which every object suspended in a fluid medium is visibly seen to be buoyed in an upwards direction.

Buoyant Force is based on several factors, like:

Fluid density
The object volume or displaced fluid
The acceleration due to gravity in the specific area

Archimedes’ Principle

Archimedes’ Principle claims that a submerged object in water, either partially or fully, can potentially experience an upward buoyant force equivalent to the weight of water which is displaced by the object.

Formula of Archimedes’ Principle: F_b = ρ x g x V

Here,

F_b is the buoyant force
ρ is the density of the fluid
V is the submerged volume
g is the acceleration due to gravity

Check Out:

Chapter Related Links
Gravitational Acceleration Formula	Gravitational Constant	Gravitational Force Formula
Mass and Weight	Thrust and Pressure	Relative Density
Difference Between Mass & Weight	Difference between Gravitation and Gravity	Gravity Waves

Also Read:

Important Science Study Guides
Difference between in physics	Named Reactions	Difference between in biology
Difference between in chemistry	Periodic Table	Physics Constants

CBSE X Related Questions

1.
Sex is determined by different factors in various species. However, in human beings, it is determined genetically. Which amongst the following option(s) is/are correct for human beings ?
Gamete carrying X chromosome from female parent.
Gamete carrying X chromosome from male parent.
Gamete carrying Y chromosome from male parent.
- (ii) and (iii)
- (i) only
- (i) and (iii)
- (iii) only
View Solution
2.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?
View Solution
3.
State two differences between the act of chewing food and salivation on sight of food.
View Solution
4.
From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively:
(i) Growth of pollen tube towards ovule.
(ii) Movement of sunflower towards sunlight.
(iii) Movement of root towards Earth/Gravity.
(iv) Movement of leaves due to breeze.
- (i) and (iii) respectively
- (iii) and (i) respectively
- (i), (ii) and (iii), (iv) respectively
- (i), (iii) and (ii), (iv) respectively
View Solution
5.
Give one example each of electrolytic decomposition and decomposition by sunlight.
View Solution
6.
A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :
- \(-15 \, \text{cm and} -15 \, \text{cm from lens}\)
- \(-15 \, \text{cm and} +15 \, \text{cm from lens}\)
- \(-30 \, \text{cm and} +30 \, \text{cm from lens}\)
- \(-30 \, \text{cm and} -30 \, \text{cm from lens}\)
View Solution

View All

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Gravitation

NCERT Solutions for Class 9 Science Chapter 10: Gravitation

NCERT Solutions for Class 9 Science Chapter 10

Important Topics for Class 9 Science Chapter 10 Gravitation

Universal Law of Gravitation

Buoyancy

Archimedes’ Principle

CBSE X Related Questions

2.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

3.
State two differences between the act of chewing food and salivation on sight of food.

4.
From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively:
(i) Growth of pollen tube towards ovule.
(ii) Movement of sunflower towards sunlight.
(iii) Movement of root towards Earth/Gravity.
(iv) Movement of leaves due to breeze.

5.
Give one example each of electrolytic decomposition and decomposition by sunlight.

6.
A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :

Similar Science Concepts

Comments

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NCERT Solutions for Class 9 Science Chapter 10: Gravitation

NCERT Solutions for Class 9 Science Chapter 10

Important Topics for Class 9 Science Chapter 10 Gravitation

Universal Law of Gravitation

Buoyancy

Archimedes’ Principle

CBSE X Related Questions

2.How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

3.State two differences between the act of chewing food and salivation on sight of food.

4.From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively: (i) Growth of pollen tube towards ovule. (ii) Movement of sunflower towards sunlight. (iii) Movement of root towards Earth/Gravity. (iv) Movement of leaves due to breeze.

5.Give one example each of electrolytic decomposition and decomposition by sunlight.

6.A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :

Similar Science Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
How many bulbs of resistance \( 8 \ \Omega \) each should be connected in parallel combination to draw a current of \( 2 \text{ A} \) from a battery of \( 4 \text{ V} \) ?

3.
State two differences between the act of chewing food and salivation on sight of food.

4.
From the given situations, identify 'Chemotropic' and 'Geotropic' movements in parts of plants, respectively:
(i) Growth of pollen tube towards ovule.
(ii) Movement of sunflower towards sunlight.
(iii) Movement of root towards Earth/Gravity.
(iv) Movement of leaves due to breeze.

5.
Give one example each of electrolytic decomposition and decomposition by sunlight.

6.
A convex lens of focal length 15 cm, is forming a real image. If the size of image is same as the size of object, then position of object and position of image will be, respectively :