#### Chapters

## Chapter 1: Gravitation

### SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 1 Gravitation Choose the correct option.

#### Choose the correct option.

A _______ is necessary to change the speed as well as the direction of motion of an object.

force

inertia

momentum

motion

The orbit of a planet revolving around a star is _______.

circular

linear

towards the focal point

elliptical

The square of its period of revolution around the sun is directly proportional to the _______ of the mean distance of a planet from the sun.

square

square root

cube

cube root

The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is _______ of the distance between them.

inversely proportional to the square

directly proportional to the square

inversely proportional to the cube

inversely proportional to the square root

The value of universal gravitational constant (G) in the SI unit is _______.

6.673 × 10

^{-11}Nm^{2}/kg^{2}6.673 × 10

^{11}Nm/kg9.673 × 10

^{-11}Nm/kg9.673 × 10

^{-11}Nm^{2}/kg^{2}

The _______ force is much weaker than other forces in nature.

gravitational

electromagnetic

nuclear force

intermolecular

The value of gravitational acceleration (g) is ________.

highest at the poles

highest at the equator

same everywhere on the surface of the earth

lowest at the poles

The value of gravitational acceleration (g) is ________ at the equator.

9.78 m/s

^{2}9.832 m/s

^{2}9.8 m/s

^{2}6.67 m/s

^{2}

The free fall of an object is possible only in _______.

air

vacuum

on the surface of earth

None of these

The weight of any object on the moon is nearly _______ of the weight of the earth.

1/6

1/8

1/2

2/6

A person weighs 60 N on earth. His weight on the moon will be _______.

360 N

60 N

6 N

10 N

### SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 1 Gravitation Right or Wrong sentence

If the distance between two masses is doubled, the gravitational force between them becomes less than the previous force.

Right

Wrong

The CGS unit of G is dyne.cm^{2}/g^{2}.

Right

Wrong

The value of gravitational acceleration at the centre of earth is zero.

Right

Wrong

The value of g is highest at the equator.

Right

Wrong

The value of G varies from place to place.

Right

Wrong

As we go above the earth's surface, value of g increases.

Right

Wrong

Free fall of an object does not depend on the mass of the object.

Right

Wrong

Mass is a qualitative measure of the inertia of an object.

Right

Wrong

## Chapter 1: Gravitation

## SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 chapter 1 - Gravitation

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Concepts covered in 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 chapter 1 Gravitation are Concept of Gravitation, Centripetal Force, Types of Motion Based on Path, Kepler’s Laws, Newton’s Universal Law of Gravitation, Earth’s Gravitational Acceleration, Variation in Value of g, Free Fall, Escape velocity, Concept of Weight, Gravitational Potential Energy.

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