Sainik School Coaching Jalandhar|Anand Classes|@9463138669|Shape of Earth & Gravitation

CALL 9463138669, ANAND CLASSES–ALL INDIA SAINIK SCHOOL ENTRANCE EXAM COACHING CENTER IN JALANDHAR.

Revision Course : Sainik School Exam Syllabus (Topic Wise GK)Shape of Earth and Gravitation MCQs. Sainik School Coaching Jalandhar

Topic : Shape of Earth and Gravitation.

Shape of Earth and Gravitation. Sainik School Coaching Jalandhar 

We, at ANAND CLASSES, are providing the Study Material for All India Sainik School Entrance Exam  for students who want to excel in their studies and ace their final exam.

Sainik School Coaching Jalandhar. Sainik School Exam Study Material

Q.1> What is the name of attractive force which act between any two bodies in our universe?

A: Gravitational force
B: Coulomb attractive force
C: Nuclear force
D: Magnetic force

Answer

Gravitational force

Q.2> What is the value of Universal Gravitational Constant (G) in C.G.S unit?

A: 6.67 * 10^-6 cgs unit
B: 6.67 * 10^-7 cgs unit
C: 6.67 * 10^-8 cgs unit
D: 6.67 * 10^-10 cgs unit

Answer

6.67 * 10^-8 cgs unit

Q.3> What is the unit of Universal Gravitational Constant in SI unit?

A: N-m-Kg
B: N/m-Kg
C: N-m/Kg²
D: N/m²-Kg

Answer

N-m/Kg²

Q.4> What is the value of gravitational acceleration on Earth?

A: 9.8 m-s²
B: 9.8 m/s²
C: 8.9 m-s²
D: 8.9 m/s²

Answer

9.8 m/s²

Q.5> The value of gravitational acceleration is –

A: increases as height increase form the earth.
B: decreases as height increase from the earth.
C: remains constant
D: None of the above

Answer

Increases as height increase from the earth

Q.6> Where the value of gravitational acceleration is less due to the diurnal motion of earth?

A: At Polar region
B: At equator
C: Tropic of Cancer or Tropic of Capricorn
D: None of this

Answer

At equator

Q.7> In which region of earth the weight of a body is slightly greater?

A: At Polar region
B: At equator
C: Tropic of Cancer or Tropic of Capricorn
D: None of this

Answer

At polar region

Q.8> If speed of rotation of earth increases then what would be the value of weight of a body?

A: Weight of a body will increases
B: Weight of a body will decreases
C: Weight of a body remain constant
D: Can not be answered

Answer

Weight of a body will decreases

Q.9> What is the approximate mass of Sun?

A: 2 * 10³⁴ kg
B: 2 * 10³² kg
C: 2 * 10³⁰ kg
D: 2 * 10²⁸ kg

Answer

2 * 10³⁰ kg

Q.10 What is the approximate mass of earth?

A: 3 * 10²⁴ kg
B: 4* 10²⁴ kg
C: 5* 10²⁴ kg
D: 6 * 10²⁴ kg

Answer

6 * 10²⁴ kg

Q.11 What is escape velocity?

A: Velocity of moon
B: Velocity of earth
C: Velocity of a body that allow it to go outside the earth
D: Tangential velocity of equator.

Answer

Velocity of a body that allow it to go outside the earth.

Q.12 What is the value of escape velocity of earth?

A: 9.8 km/sec
B: 10 km/sec
C: 11.2 km/sec
D: 12 km/sec

Answer

11.2 km/sec

Q.13 Does time period of artificial satellite depend on its mass?

A: Yes
B: No

Answer

No

Q.14 What would be the height of an artificial satellite so that it can be observed at same position with respect to earth?

A: 36000 km above the earth surface
B: 40000 km above the earth surface
C: 26000 km above the earth surface
D: 63000 km above the earth surface

Answer

36000 km above the earth surface.

Q.15 How much time a polar satellite take to complete one revolution around earth?

A: 1 hour 30 min.
B: 2 hours
C: 2 hour 20 min
D: 3 hour

Answer

2 hours

Q.16 What is the weight of a body inside an artificial satellite of earth?

A: It depends on the mass of the body
B: It depends on the velocity of satellite
C: Product of its mass and gravitational acceleration
D: Zero

Answer

Zero

Q.17 Does the gravitational force same for two objects inside and outside the water?

A: Yes
B: No

Answer

Yes

Q.18 What is the weight of a body of mass 1 kg?

A: 1 kg
B: 9.8 kg
C: 9.8 Kg-m/Sec²
D: 9.8 N

Answer

Both C and D; [(Kg-m/Sec² ) = N]

Q.19 Weight of free fall object is

A: mass of the object × gravitational acceleration
B: Zero
C: greater than rest object
D: less than rest object

Answer

Zero

Q.20 Does escape velocity of a body depend on its mass?

A: Yes
B: No

Answer

No

Q.21 Let the escape velocity of earth is Ve. What would be the escape velocity of a planet whose mass and radius is double from earth?

A: Ve
B: 2 Ve
C: 4 Ve
D: 16 Ve

Answer

Ve ; escape velocity = √(2GM/R)

Note : G= universal gravitational constant; M = mass of planet; R = Radius of planet

Q.22 If the radius of earth is decrease keeping mass constant, then the length of day will

A: decrease
B: Increase
C: remain same Shape of Earth and Gravitation
D: can not say

Answer

Decrease

Q.23 If the earth stop rotating then the weight of an object on north pole will

A: Increase
B: decrease
C: remain same Shape of Earth and Gravitation
D: be zero

Answer Sainik School Study Material

Remain same

Q.24 If a stone bring back to earth from moon then its

A: mass will be changed
B: mass and weight will be changed. Online Sainik School Coaching
C: Weight never be changed
D: mass remain constant but weight will be changed

Answer

Mass remain same but weight will be changed.

Q.25 Suppose an object is thrown upward with an angle θ providing velocity equal to escape velocity (Ve). The magnitude of escape velocity will be..

A: Ve
B: Ve Cosθ
C: Ve Sinθ
D: Ve tanθ

Answer

Ve

Q.26 While revolving an artificial satellite around earth, the required centripetal force is provided by –

A: fuel contained in the satellite RIMC RMS Coaching Jalandhar
B: gravitational force due to sun
C: gravitational force due to earth RIMC RMS Coaching Jalandhar
D: Thrust produced by burning fuel Sainik School Study Material

Answer

gravitational force due to earth.

Q.27 In case of planet’s motion –

A: velocity remain constant in its orbit.RIMC RMS Coaching Jalandhar
B: angular velocity remain constant
C: total angular momentum remain constant
D: radius of orbit remain constant.

Answer

Total angular velocity remain constant. Online Sainik School Coaching

Q.28 An artificial satellite revolving around earth in a circular orbit. Its

A: linear velocity is constant
B: acceleration is constant
C: acceleration is changing RIMC RMS Coaching Jalandhar
D: angular velocity constant

Answer

acceleration is changing. RIMC RMS Coaching Jalandhar

Q.29 What is the value of gravitational acceleration inside the earth?

A: 9.8 m-s²
B: Infinite Sainik School Study Material
C: Zero
D: Can not be calculated Sainik School Study Material

Answer

Zero Online Sainik School Coaching

Q.30 In case of free fall the gravitational acceleration on a spherical object depends on__

A: The mass of the object Online Sainik School Coaching
B: The radius of the object
C: The density of the object
D: None of the above

Answer

None of the above

ANAND CLASSES offers ALL INDIA SAINIK SCHOOL Entrance Exam Coaching in Jalandhar. ANAND CLASSES is the prevalent establishment in the Jalandhar for ALL INDIA SAINIK SCHOOL Entrance Exam. It is surely famous for its selective class management classes and productive Best ALL INDIA SAINIK SCHOOL Entrance Exam coaching institute in Jalandhar. 

The faculty at ANAND CLASSES - ARMED FORCE ACADEMY is highly qualified and vastly experienced in successfully coaching students for ALL INDIA SAINIK SCHOOL Entrance Exam.

ANAND CLASSES is known as leading institute for preparation of ALL INDIA SAINIK SCHOOL Entrance Exam Coaching in Jalandhar. We at ANAND CLASSES provide coaching for ALL INDIA SAINIK SCHOOL Entrance Exam from the past 15 years. The ALL INDIA SAINIK SCHOOL Entrance Exam Coaching Center in Jalandhar, Punjab.

http://anandclasses.co.in/sainik-school-class-6/sainik-school-class-6-gk/mountain-terrain-lifestyle-mcqs-2/

http://anandclasses.co.in/sainik-school-class-6/sainik-school-class-6-gk/shape-of-earth-and-gravitation-2/