Gravitation : Class 9 Science MCQ Practice Questions & Answers (Bengali)

Class 9 ScienceMediumPhysicsGravitationWeight

1.

Which of the following has the largest gravitational force?

A

A 100 kg object on Earth

B

A 10 kg object on the Moon

C

A 1 kg object on Earth

D

A 1000 kg object in space

Class 9 ScienceMediumPhysicsGravitationWeight

2.

Which of the following is the SI unit of weight?

A

Joule

B

Meter

C

Kilogram

D

Newton

Class 9 ScienceMediumPhysicsGravitationGravity

3.

Why do objects fall towards the Earth?

A

Due to magnetic force

B

Due to friction

C

Due to gravitational force

D

Due to air resistance

Class 9 ScienceMediumPhysicsGravitationAcceleration Due To Gravity

4.

Which of the following has the highest value of gravitational acceleration?

A

Mars

B

Earth

C

Jupiter

D

The Moon

Class 9 ScienceMediumPhysicsGravitationUniversal Gravitation

5.

What happens to the gravitational force if the distance between two objects is halved?

A

It becomes half

B

It becomes four times

C

It remains unchanged

D

It becomes double

Class 9 ScienceMediumPhysicsGravitationUniversal Gravitation

6.

What is the gravitational force between two objects with masses m₁ and m₂ separated by a distance r?

A

F = G(m₁ × m₂)/r²

B

F = G(m₁ + m₂)/r

C

F = Gm₁m₂ × r²

D

F = G/r²

Class 9 ScienceMediumPhysicsGravitationUniversal Gravitation

7.

What is the force of attraction between two masses called?

A

Gravitational force

B

Electromagnetic force

C

Frictional force

D

Nuclear force

Class 9 ScienceMediumPhysicsGravitationWeight

8.

What is the force of gravity on an object called?

A

Gravitational force

B

Normal force

C

Weight

D

Mass

Class 9 ScienceMediumPhysicsGravitationFree Fall

9.

What is the acceleration of an object in free fall near the surface of the Earth?

A

0 m/s²

B

9.8 m/s²

C

1 m/s²

D

10 m/s²

Class 9 ScienceMediumScience PhysicsGravitation

10.

Which of the following objects experiences gravitational force?

A

Only the Moon

B

Any object with mass

C

Only objects near the Earth's surface

D

Only Earth

Class 9 ScienceMediumScience PhysicsGravitation

11.

What is the relationship between weight and mass?

A

Weight is independent of mass

B

Weight is inversely proportional to mass

C

Weight is proportional to mass

D

Weight is proportional to volume

Class 9 ScienceMediumScience PhysicsGravitation

12.

Which of the following is true about gravitational force?

A

It is always attractive

B

It is a contact force

C

It depends on the color of the object

D

It is a non-contact force

Class 9 ScienceMediumScience PhysicsGravitation

13.

What is the value of acceleration due to gravity on Earth?

A

10 m/s²

B

9.8 m/s

C

9.8 m/s²

D

9.8 N/kg

Class 9 ScienceMediumPhysicsGravitation

14.

Who formulated the law of universal gravitation?

A

Albert Einstein

B

Galileo Galilei

C

Isaac Newton

D

Johannes Kepler

Gravitation in Class 9 Science : Practice MCQ Questions & Answers with Explanations

Gravitation in Class 9 Science : Practice MCQ Questions & Answers with Explanations