Assertion and Reason Questions Class 9 Science Chapter 10 Gravitation

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Solved CBSE Class 9 Science Chapter 10 Assertion and Reason Questions – Gravitation. Here we (Net Explanations) working very hard to providing you with the Important Assertion Reason Questions for this Chapter.

Assertion and Reason Questions – Gravitation

1) Assertion-An object when thrown upward reaches a certain height and falls downward.

Reason-Object which thrown upward get float on the sky.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

2) Assertion-An object when thrown upward reaches a certain height and falls downward.

Reason- Object has their own energy to come down side.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

3) Assertion-An object when thrown upward reaches a certain height and float upward.

Reason-Due to gravitational energy an any object get float upward in the sky.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

4) Assertion-An object when thrown upward reaches a certain height and falls downward.

Reason-Due to gravitational energy an any object which present in the sky falls down the earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

5) Assertion-A stone travelling circular path with a velocity of constant magnitude.

Reason-stone has its own energy to move in the circular path.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

6) Assertion-A stone travelling circular path with a velocity of constant magnitude.

Reason-A stone which travelling in circular path which follows centripetal force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

7) Assertion-A stone which tied with rope accelerate from the motion.

Reason- A stone which travelling in circular path which follows centripetal force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

8) Assertion- The force that causes the acceleration and keeps the body moving along the circular path is acting towards the center. This force is called centripetal force

Reason-Centripetal force only acting on such an object which capable to move alone in the space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

9) Assertion-The force that causes the acceleration and keeps the body moving along the circular path is acting towards the center. This force is called centripetal force.

Reason-Vander wall force only acting on such an object which capable to move alone in the space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

10) Assertion-The force that causes the acceleration and keeps the body moving along the rectangle path is acting towards the center. This force is called centripetal force.

Reason-Vander wall force only acting on such an object which capable to move alone in the space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

11) Assertion-In the absence of gravitational force any abject can be float on the sky.

Reason-gravitational force is the attractive force which exert from the core of earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

12) Assertion-In the absence of gravitational force any abject can be float on the sky.

Reason-gravitational force is the repulsive force which exert from the sun to a object.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

13) Assertion-In the absence of gravitational force any abject can be float on the sky.

Reason- An object when thrown upward reaches a certain height and falls downward.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

14) Assertion-Moon is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the circular path is acting towards the center. This force is called centripetal force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

15) Assertion-Moon is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the rectangular path is acting towards the center. This force is called centripetal force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

16) Assertion-Moon is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the rectangular path is acting towards the center. This force is called rectangular force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

17) Assertion-Sun is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the rectangular path is acting towards the center. This force is called rectangular force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

18) Assertion-Moon is revolving around the earth

Reason-According to second law of motion the force of acceleration is inversely proportional to the mass of an object. So, the mass of moon is negligible.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

19) Assertion-Moon is revolving around the earth.

Reason-According to second law of motion the force of acceleration is inversely proportional to the mass of an object. So, the mass of moon is more than earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

20) Assertion-Moon is revolving around the earth.

Reason-According to second law of motion the force of acceleration is directly proportional to the mass of an object. So, the mass of moon is more than earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

21) Assertion-Moon is revolving around the mars

Reason-According to second law of motion the force of acceleration is directly proportional to the mass of an object. So, the mass of moon is more than earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

22) Assertion- SI unit of gravitation is N m2 kg-2  

Reason- Gravitation is the attractive force present on the earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

23) Assertion- SI unit of gravitation is N m2 kg-2  

Reason- Gravitation has no SI unit.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-assertion is true, but Reason is false.

24) Assertion-A force which binds us to the earth is known as gravitational force.

Reason-Gravitational force is the attractive force exerts from earth core to every object which present on earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

25) Assertion-A force which binds us to the earth is known as gravitational force.

Reason-Gravitational force is the repulsive force exerts from earth core to every object which present on earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

26) Assertion-A force which binds us to the earth is known as interstitial force.

Reason-Gravitational force is the repulsive force exerts from earth core to every object which present on earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

27) Assertion-the object fall towards the earth under gravitational force alone we say that the abject are in free fall

Reason- the object which experiences free fall cannot have its own energy.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

28) Assertion-the object fall towards the earth under gravitational force alone we say that the abject are in free fall

Reason- the object which experiences free fall have its own energy to fall on ground.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

29) Assertion-the object go upward from the earth under gravitational force alone we say that the abject are in free fall

Reason- The object which experiences free fall have its own energy to fall on ground.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

30) Assertion-The object which experiences free fall have its own energy to fall on ground.

Reason-the object goes upward from the earth under the gravitational force alone we say that the abject are in free fall

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

31) Assertion-The earth is not perfect sphere.

Reason-Earth is rectangle in shape

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

32) Assertion- relation of inertia and mass is when inertia is greater the mass of object also greater.

Reason- inertia is directly proportional to the mass of abject.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

33) Assertion-The formula of pressure is equal to thrust divided by area.

Reason-SI unit of pressure is N/m2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

34) Assertion-Pressure exerted in any confined mass of fluid is transmitted undiminished in all directions.

Reason-SI unit of pressure is N/m2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

35) Assertion-Pressure exerted in any confined mass of fluid is transmitted undiminished in all directions.

Reason-SI unit of pressure is N/Scm2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

36) Assertion-Temperature exerted in any confined mass of fluid is transmitted undiminished in all directions.

Reason-SI unit of pressure is N/Scm2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

37) Assertion-SI unit of pressure is N/Scm2

Reason-Temperature exerted in any confined mass of fluid is transmitted undiminished in all directions.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

38) Assertion-The upward force exerted by the water on the bottle is known as upthrust or buoyant force.

Reason- The magnitude of the buoyant force is depending on the density of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

39) Assertion-The downward force exerted by the water on the bottle is known as upthrust or buoyant force.

Reason- The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

40) Assertion-The upward force exerted by the water on the bottle is known as upthrust or buoyant force.

Reason- The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

41) Assertion-When body is immersed fully or partially in fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it.

Reason-The magnitude of the buoyant force is depending on the density of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

42) Assertion-When body is immersed fully or partially in fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it.

Reason-The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

43) Assertion-When body is immersed fully or partially in fluid, it experiences adownward force that is equal to the weight of the fluid displaced by it.

Reason-The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

44) Assertion-The unit of density is kilogram per meter cube.

Reason-The density of a substance is defined as mass of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

45) Assertion-The unit of density is kg m-3.

Reason-The density of a substance is defined as mass of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

46) Assertion-The unit of density is kilogram per meter cube.

Reason-The viscosity of a substance is defined as mass of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

47) Assertion-The unit of density is kilogram per meter cube.

Reason-The density of a substance is defined as mass of a unit kilogram.

 

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

48) Assertion-The unit of density is kilogram per meter cube.

Reason-The density of a substance is defined as pressure of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

49) Assertion-The unit of density is kilogram per meter square.

Reason-The density of a substance is defined as pressure of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

50) Assertion- The formula of relative density equals to density of substances divided by density of water.

Reason-Relative density term is depending on the relation of density and volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

Updated: February 11, 2022 — 2:18 pm

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