English

What is the free fall? - Science and Technology 1

Advertisements
Advertisements

Question

What is the free fall?

One Line Answer

Solution

The motion of any object under the influence of the force of gravity alone is called free fall.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Gravitation - Exercises [Page 14]

RELATED QUESTIONS

What name has been given to the force with which two objects lying apart attract each other ?


What type of force is involved in the formation of tides in the sea ?


State whether the following statement is true or false :

The force of gravitation between two objects depends on the nature of medium between them.


A coin and a piece of paper are dropped simultaneously from the same height. Which of the two will touch the ground first ? What will happen if the coin and the piece of paper are dropped in vacuum ? Give reasons for your answer.


What assumption was made by Newton regarding the shape of an orbit of a planet around the sun for deriving his inverse square rule from Kepler’s third law of planetary motion ?


The mass of the earth is 6 × 1024 kg. The distance between the earth and the sun is 1.5 × 1011 m. If the gravitational force between the two is 3.5 × 1022 N, what is the mass of the sun? Use G = 6.7 × 10–11 N m2 kg–2


Write proper answer in the box:

If `"F" = ("G""m"_1"m"_2)/"d"^2`  then F = ______


An object is thrown vertically upwards with a velocity u, the greatest height h to which it will rise before falling back is given by :


Two particles are placed at some distance from each other. If, keeping the distance between them unchanged, the mass of each of the two particles is doubled, the value of gravitational force between them will become :


In the relation F = G ✕ M ✕ m/d2, the quantity G:


The gravitational force of attraction between two objects is x. Keeping the masses of the objects unchanged, if the distance between the objects is halved, then the magnitude of gravitational force between them will become :


According to one of the Kepler's laws of planetary motion :


A _______ is necessary to change the speed as well as the direction of motion of an object.


If the distance between two masses is doubled, the gravitational force between them becomes less than the previous force.


Identify the mistake in the given diagram and draw it again.


A boy is whirling a stone tied with a string in a horizontal circular path. If the string breaks, the stone


An apple falls from a tree because of gravitational attraction between the earth and the apple. If F1 is the magnitude of the force exerted by the earth on the apple and F2 is the magnitude of the force exerted by the apple on earth, then


Identical packets are dropped from two aeroplanes, one above the equator and the other above the north pole, both at height h. Assuming all conditions are identical, will those packets take some time to reach the surface of the earth. Justify your answer.


Give scientific reasons.

Any object on earth falls vertically downward and not at an angle to the vertical; nor fly off in a horizontal direction.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×