CBSE Class 11 Gravitation Worksheet B

Read and download free pdf of CBSE Class 11 Gravitation Worksheet B. Download printable Physics Class 11 Worksheets in pdf format, CBSE Class 11 Physics Chapter 8 Gravitation Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Physics Class 11 Assignments and practice them daily to get better marks in tests and exams for Class 11. Free chapter wise worksheets with answers have been designed by Class 11 teachers as per latest examination pattern

Chapter 8 Gravitation Physics Worksheet for Class 11

Class 11 Physics students should refer to the following printable worksheet in Pdf in Class 11. This test paper with questions and solutions for Class 11 Physics will be very useful for tests and exams and help you to score better marks

Class 11 Physics Chapter 8 Gravitation Worksheet Pdf

Gravitation MCQ Questions with Answers Class 11 Physics Chapter 8

Question- The escape velocity of a body depends upon mass as
(a) m0
(b) m1
(c) m2
(d) m3
Ans-(a)
 
Question-  If suddenly the gravitational force of attraction between earth and a satellite revolving around it becomes zero, then the satellite will 
(a) continue to move in its orbit with same velocity
(b) move tangentially to the original orbit in the same velocity
(c) become stationary in its orbit
(d) move towards the earth
Ans- (b)
 
Question-  The time period of a satellite of earth is 5 h. If the separation between the earth and the satellite is increased to 4 times the previous value, the new time period will become 
(a) 10 h
(b) 80 h
(c) 40 h
(d) 20 h
Ans-(c) 
 
Question-  Two spherical bodies of mass M and 5M and radii R and 2R respectively are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is 
(a) 2.5 R
(b) 4.5 R
(c) 7.5 R
(d) 1.5 R
Ans- (c)
 
Question- The escape velocity for a body projected vertically upwards from the surface of earth is 11 km/s. If the body is projected at an angle of 45° with the vertical, the escape velocity will be 
(a) 11 √2 km/ s
(b) 22 km/s
(c) 11 km/s
(d) 11/ √2 km/ s
Ans- (c)
 
Question-  A planet in a distance solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is 11 km s–1, the escape velocity from the surface of the planet would be 
(a) 0.11 km s–1
(b) 1.1 km s–1
(c) 11 km s–1
(d) 110 km s–1
Ans- (d)
 
Question-  The height at which the acceleration due to gravity becomes g/9 (where g = the acceleration due to gravity on the surface of the earth) in terms of R, the radius of the earth is 
(a) 2 R
(b) R / √3
(c) R/2
(d) √2 R
Ans-(a) 
 
Question- If the Earth has no rotational motion, the weight of a person on the equator is W. Determine the speed with which the earth would have to rotate about its axis so that the person at the equator will weigh 3/4 W. Radius of the Earth is 6400 km and g = 10m/s2
(a) 1.1 × 10–3 rad/s
(b) 0.83 × 10–3 rad/s
(c) 0.63 × 10–3 rad/s
(d) 0.28 × 10–3 rad/s
Ans-(c) 
 
Question-  Assuming that the earth is a sphere of radius R, at what altitude will the value of the acceleration due to gravity be half its value at the surface of the earth ?
(a)h - R/2
(b) h - R/√2
(c) h - (√2 +1)R
(d) h - (√2 -1)R
Ans-(a) 
 
Question-  What must be the angular velocity of rotation of the earth so that the effective acceleration due to gravity at the equator is zero ? The radius of the earth = 64 × 104 m.
(a) 3.3 × 10–3 rad s–1
(b) 3.5 × 10–3 rad s–1
(c) 3.7 × 10–3 rad s–1
(d) 3.9 × 10–3 rad s–1
Ans-(a)
 
Question-  A body is released from a height equal to the radius (R) of the earth. The velocity of the body when it strikes the surface of the earth will be
(a) √gR
(b) √2gR
(c) 2 √2gR
(d) 2 √gR
Ans-(c)
 
Question- The gravitational force between two objects does not depend on
(a) Sum of the masses
(b) Product of the masses
(c) Gravitational constant
(d) Distance between the masses
Ans-(a)
 
Question-  The mass of the moon is about 1.2% of the mass of the earth. Compared to the gravitational force the earth exerts on the moon, the gravitational force the moon exerts on earth
(a) Is the same
(b) Is smaller
(c) Is greater
(d) Varies with its phase
Ans-(a)
 
Question- If the distance between two masses is doubled, the gravitational attraction between them
(a) Is doubled
(b) becomes four times
(c) Is reduced to half
(d) Is reduced to a quarter
Ans-(d)


More question-


1. The gravitational force between two blocks is F what would happen if a mass of both the blocks as well as distance between them is doubled?

2. A body is weightless at the centre of earth. Why?

3. Where will a body weigh more at Delhi or at Shimla? Why?

4. Find an expression for the weight of a body at the centre of the earth?

5. Find an expression for gravitational intensity due to earth at a point on its free surface.

6. The earths mass is 80 times that of moon and their diameters are in the ratio 4:1 respectively. What is the value of g on moon?

7. Determine the value of g at the bottom of an ocean 7km deep Given that radius of earth is 6370 km and g = 9.8m|s2.

8. Show that value of g at a height h is same as the value of acceleration due of gravity at a depth d = 2h

9. If T be the period of satellite revolving just above the surface of a planet whose average density is p, show that PT2 is a universal constant.

10. Define Gravitational potential energy Hence deduces an expression for gravitational potential energy of a body placed at a point sear the surface of earth? 


Click on link below to download CBSE Class 11 Gravitation Worksheet B.

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CBSE Class 11 Physics Chapter 8 Gravitation Worksheet

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Worksheet for Physics CBSE Class 11 Chapter 8 Gravitation

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Chapter 8 Gravitation worksheet Physics CBSE Class 11

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Chapter 8 Gravitation CBSE Class 11 Physics Worksheet

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