मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write scientific reason. The weight of an object varies on different planets. - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Write scientific reason.

The weight of an object varies on different planets.

स्पष्ट करा
टीपा लिहा

उत्तर

  1. The weight of an object of mass m on a planet is given by, Wp = mgp Where, gp = acceleration due to gravity at the planet.
  2. Also, acceleration due to gravity on the planet is given by gp = `"GM"_"P"/(("R"_"P")^2)` 
    where, MP = mass of the planet
    and RP = radius of the planet
  3. Since MP and RP are different on different planets, the weight of an object will be different on different planets even though its mass remains constant.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Gravitation - Write scientific reasons

संबंधित प्रश्‍न

Fill in the following blank with suitable word :

The value of g on the earth is about………………. of that on the moon.


The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A?


The value of gravitational acceleration (g) is ________ at the equator.


The CGS unit of G is dyne.cm2/g2.


The value of g is highest at the equator.


The value of G varies from place to place.


Write scientific reason.

The value of acceleration g is greater at the pole than at the equator.


Write scientific reason.

The value of gravitational acceleration (g) decreases as we go above the Earth's surface.


Write scientific reason.

The value of g at the centre of the earth is zero.


The ratio of masses of two planets is 2:3 and the ratio of their radii is 4:7 Find the ratio of their accelerations due to gravity.


The acceleration due to gravity on a planet is 1.96 m/s2. If it is safe to jump from a height of 3 m on tbe earth, the corresponding height on the planet will be ____________.


The acceleration due to gravity on moon is `(1/6)^"th"` times the acceleration due to gravity on earth. If the ratio of the density of earth 'ρe' to the density of moon 'ρm' is `5/3`, then the radius of moon 'Rm' in terms of the radius of earth 'Re' is ______.


A wire AB is carrying steady current 'I1' and is kept on the table. Another wire CD carrying current 'I2' is held parallel and directly above AB at a distance 'r'. When wire CD is left free and it remains suspended at its position, its mass per unit length is (g =acceleration due to gravity) ____________.


On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?


Suppose the gravity of the earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?


The depth 'd' at which the value of acceleration due to gravity becomes `"I"/"n"` times the value at the earth's surface is ______. (R = radius of earth)


The difference in the acceleration due to gravity at the pole and equator is ______.

(g = acceleration due to gravity, R = radius of the earth; θ = latitude, ω = angular velocity, cos0° = 1, cos90° = 0)


A uniform ring of mass M and radius r is placed directly above a uniform sphere of mass 8M and of same radius R. The centre of the ring is at a distance of d = `sqrt3​`R from the centre of the sphere. The gravitational attraction between the sphere and the ring is ______.


The mass of a spaceship is 1000 kg. It is to be launched from the earth's surface out into free space. The value of g and R are 10 m/s2 and 6400 km, respectively. The required energy for this work will be ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×