MCQ Questions | Class 9 Science Chapter 10 | Gravitation with Answers

MCQ | Gravitation Class 9 | Part-3

Check the below NCERT MCQ Questions for Class 9 Science Chapter 10 Gravitation with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Gravitation Class 9 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Science Class 9

NCERT Solutions Class 9 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Science
Chapter:	10 ( Part-3 )
Chapters Name:	Gravitation
Medium:	English

Ncert Solutions for Class 9 Science | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Science Chapter 10 Gravitation to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Q1.	Gravitation force is a
	A. short range force
	B. non-central force
	C. weakest force
	D. strongest force

Q2.	If the distance between two objects is increased by 7 times then the force of attraction will be
	A.Increases by 7 time
	B.Decreases by 7 time
	C.Increases by 49 times
	D.Decreases by 49 times.

Q3.	If a man of mass 80 kg is in interstellar space (zero gravity) then its weight will be
	A.800 N
	B.80 N
	C.130.64 N
	D.Zero N

Q4.	If the weight of object on moon is 21 N then its weight on earth will be
	A.21 N
	B.63 N
	C.126 N
	D.0 N

Q5.	The weight of the object is depend on
	A.Mass
	B.Acceleration due to gravity
	C.Both a and b
	D.None of these

Q6.	Hammer exerts 20 N force on the wall. If the area of hammer is 0.2 m² then calculate pressure exerted by hammer on wall.
	A.50 N/m²
	B.100 N/m²
	C.100 N/m²
	D.2000 N/m²

Q7.	If the relative density of a substance is 0.8 then Calculate the density of substance.
	A.800 Kg/m³
	B.900 Kg/m³
	C.1100 Kg/m³
	D.1200 Kg/m³

Q8.	“The equation of motion for free fall can be used in case of any free fall” is
	A. partially true
	B. partially false.
	C. true
	D. false

Q9.	If the radius of earth were to shrink by 1%, its mass remaining the same, the acceleration due to gravity on earth’s surface would
	A. decrease
	B. increase
	C. remain unchanged
	D. can't be calculated

Q10.	A sharp edge blade is more effective in cutting than a blunt blade due to
	A. Low force
	B. Low pressure
	C. Large contact area
	D. Small contact area

Q11.	An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be
	A. 2 N
	B. 8 N
	C. 10 N
	D. 12 N

Q12.	The neck and bottom of a bottle are 2cm and 20 cm in diameter respectively. The cork is pressed with same pressure. If the cork is pressed with a force of 1.2 kgf on the neck of the bottle, the force exerted on the bottom of the bottle will be
	A. 1200 kgf
	B. 120 kgf
	C. 1.2 kgf
	D. 12 kgf

Q13.	Weight of 1 kg is
	A. 9.8 newton
	B. 1 kg-wt
	C. both (a) and (b)
	D. either (a) or (b)

Q14.	Archimedes’ principle holds for
	A. liquids only
	B. gases only
	C. liquids and gases both
	D. neither liquids nor gases

Q15.	An apple falls from a tree because of gravitational attraction between the earth and apple. If F₁ is the magnitude of force exerted by the earth on the apple and F₁ is the magnitude of force exerted by apple on earth, then
	A. F₁ is very much greater than F₁
	B. F₁ is very much greater than F₁
	C. F₁ is only a little greater than F₁
	D. F₁ and F₁ are equal

Q16.	Freely falling objects weight ._______.
	A. zero
	B. 1/4 time
	C. 1/2 time
	D. unchanged

Q17.	For a given applied thrust, pressure exerted on a surface by a sharp pin is
	A. more than the pressure exerted by a blunt pin.
	B. less than the pressure exerted by a blunt pin.
	C. equal to the pressure exerted by a blunt pin.
	D. either less or equal to the pressure exerted by a blunt pin.

MCQ Questions | Class 9 Science Chapter 10

MCQ Questions | Class 9 Science Chapter 10 | Gravitation with Answers

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