Advertisements
Advertisements
Question
The ______ force is much weaker than other forces in nature.
Options
gravitational
electromagnetic
nuclear force
intermolecular
Advertisements
Solution
The gravitational force is much weaker than other forces in nature.
Explanation:
- Gravity is far weaker than electromagnetic and nuclear forces at atomic and molecular scales.
- However, because mass is always positive and bodies like planets and stars are huge, gravity controls astronomical motion.
APPEARS IN
RELATED QUESTIONS
How does the force of gravitation between two objects change when the distance between them is reduced to half?
What happens to the force between two objects, if the distance between the objects is doubled and tripled?
The gravitational intensity at the centre of a hemispherical shell of uniform mass density has the direction indicated by the arrow (see Fig 8.12) (i) a, (ii) b, (iii) c, (iv) 0.

Can we apply Newton’s third law to the gravitational force ? Explain your answer.
Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.
A thin spherical shell having uniform density is cut in two parts by a plane and kept separated as shown in the following figure. The point A is the centre of the plane section of the first part and B is the centre of the plane section of the second part. Show that the gravitational field at A due to the first part is equal in magnitude to the gravitational field at B due to the second part.

State whether the gravitational force between two masses is attractive or repulsive ?
How will the force of gravitation between two objects change if the distance between them is:
Halved
Why don't you feel the force of attraction between your friend sitting close to you and yourself?
You can change the direction in which an object is moving by___________.
State Newton's law of gravitation. What is the difference between:
Gravity and gravitation
What do you mean by a gravitational constant?
Law of gravitation gives the gravitational force between
Three uniform spheres, each having mass m and radius r, are kept in such a way that each touches the other two. The magnitude of the gravitational force on any sphere due to the other two is
Give scientific reasons for the following:
Newton's gravitational law is the universal law of gravitation.
Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle with respect to its centre of mass is ______.
The acceleration of the Moon towards the Earth is approximately ______.
Who measured the value of the Universal Gravitational Constant G using the Cavendish balance?
The gravitational force between two objects acts in which direction?
