Gravitation Test

Result

Gravitation Test - 22

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Weekly Quiz Competition

Question 1
4 / -1

Who among the following first gave the experimental value of G ?

A
Cavendish

B
Copernicus

C
Brook Taylor

D
None of these
Question 2
4 / -1

If the change in the value of \'g\' at a height h above the surface of the earth is the same as at a depth x below it, then (both x and h being much smaller than the radius of the earth)

A
x = h

B
x = 2h

C
x = h/2

D
x = h²

Solution
Question 3
4 / -1

If M is the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is

A
g

B
g/2

C
g/3

D
g/9

Solution
Question 4
4 / -1

The masses of two planets are in the ratio 1 : 2. Their radii are in the ratio 1 : 2. The acceleration due to gravity on the planets are in the ratio

A
1 : 2

B
2 : 1

C
3 : 5

D
5 : 3

Solution
Question 5
4 / -1

Choose the correct statement from the following :
Weightlessness of an astronaut moving in a satellite is a situation of

A
Zero g

B
No gravity

C
Zero mass

D
Free fall
Question 6
4 / -1

If the earth suddenly shrinks (without changing mass) of half of its present radius , the acceleration due to gravity will be

A
g/2

B
4g

C
g/4

D
2g

Solution
Question 7
4 / -1

If the angular speed of the earth is doubled, the value of acceleration due to gravity (g) at the north pole

A
Doubles

B
Becomes half

C
Remains same

D
Becomes zero
Question 8
4 / -1

Weight of 1 kg becomes 1/6 on moon. If radius of moon is 1.768 × 10⁶ m , then the mass of moon will be

A
1.99 × 10³⁰ kg

B
7.56 × 10²² kg

C
5.98 × 10²⁴ kg

D
7.65 × 10²² kg

Solution
Question 9
4 / -1

Radius of earth is around 6000 km. The weight of body at height of 6000 km from earth surface becomes

A
Half

B
One-fourth

C
One third

D
No change

Solution
Question 10
4 / -1

Where will it be profitable to purchase 1 kg sugar ?

A
At poles

B
At equator

C
At 45^o latitude

D
At 40^o latitude