Mangalyaan

Q.

What is the conclusion of the space mission undertaken by Sunita Williams

Q.

Question 4

An astronaut standing on the surface of the moon throws a ball upwards. The ball would

(a) directly fall down from the point it is released.
(b) hang in space.
(c) go up and then come back to the surface of the moon.
(d) keep going up never to come back.

Q.

The gravitational force between two objects is 100 N. How should the distance between the objects be changed so that the force between them becomes 50 N.

Q. List out the objectives of Mangalyaan.

Q.

In the universal law of gravitation if m₁₌ mass of man, m₂ =mass of the earth and r= radius of earth. Then what is F called as?

Q. Is there a possibility of life on Mars?

Q. Calculate the force of gravitation between the earth and the Sun, given that the mass of the earth $=6\times {10}^{24}$ kg and of the Sun $=2\times {10}^{30}$ kg. The average distance between the two is $1.5\times {10}^{11}m$. (Gravitational Constant $G=6.67\times {10}^{-11}N{m}^{2}k{g}^{-2}$)

Q. Why are orbit of plants elliptical in shape??why not any other shape like rectangle??

Q.

Which fuel do the artificial satellites use for their revolution around the earth?

Q. State the parts of the rocket.

Q. Mangalyaan was launched using a multistage rocket.

1. True
2. False

Q.

What is the importance of the universal law of Gravitation?

Q. Newton's law of gravitation is applicable to:

1. All bodies in the universe
2. Bodies on earth only
3. Bodies on planets only
4. Bodies in our solar system only

Q. What happens to the force between two objects, if

(i) the mass of one object is doubled?
(ii) the distance between the objects is doubled and tripled?
(iii) the masses of both objects are doubled?

Q. India's Mars orbitter mission which was launched in the year 2013 was named .

1. Apollo
2. Mangalyaan
3. Chandrayaan
4. Sputnik

Q. Complete the following table.

Q. Which of the two astronauts accompanied Neil Armstrong to land on to the moon"s surface in 1969?

1. Michael Collins, James irwin
2. David scot , Buzz Aldrin
3. James lrwin David scot
4. James irwin, David scot
5. Edwin Aldrin, Michael collins

Q. List out the objectives of Mangalyaan.

Q. Which of these are the objectives of Mangalyaan?

1. To develop technology for interplanetary missions
2. To explore the surface of Mars
3. To study the atmosphere of Mars
4. To investigate any past existence of life on Mars

Q. Can we determine the gravitational mass of a body inside on artificial satellite.

Q.

The force of gravitation between two bodies in the universe does not depend on:

1. the product of their masses

2. gravitational constant

3. the distance between them

4. the sum of their masses

Q.

Explain the motion of moon around the earth.

Q. Gravitational force on the surface of the moon is only $\frac{1}{6}$ as strong as gravitational force on the earth. What is the weight in newtons of a 10 kg object on the moon and on the Earth?

Q. What is the name of the spacecraft made by ISRO for Mars mission?

1. Mangalyaan
2. Chandrayaan
3. Aryabhatta
4. GSAT-31

Q. When did India launch Mangalyaan into space?

1. 28th September 2015
2. 22nd October 2008
3. 2nd August 2015
4. 5th November 2013

Q. In which of the following cases will the gravitational attraction be more, considering the distance between the balls is same in both the cases?

1. Case II
2. Equal in both cases
3. Case I