Gravitation class 9

When an object is thrown up, the force of gravity

• Acts in the direction of motion

• Acts in the direction opposite to the motion

• Remains constant as the body moves up

• Increase as the body moves up

The acceleration due to gravity

• Has same value everywhere in space

• Has same value everywhere in earth

• Varies with the latitude on the earth

• Is greater on the moon due to smaller diameter

The weight of the object

• Is the gravity of the matter it contains

• Refers to its inertia

• Is the same as it's mass but expressed in different units

• Is the force with which it is attracted to the earth

The weight of the body cannot be expressed in

• kg wt

• N

• dyne

• kg

The weight of a body would not be zero

• At the centre of the earth

• During a free fall

• In interplanetary space

• On a frictionless surface

Newton's law of gravitation is applicable to

• Bodies of the solar system only

• Bodies on the earth

• Planets only

• All bodies of the universe

If a rock is brought from the surface of the moon, then

• Its mass will change

• Its weight will change but not mass

• Both mass and weight will change

• Mass of a body will remain the same

All the bodies wether large or small fall with the

• Same force

• Same acceleration

• Same velocity

• Same momentum

At which of the following locations, the value of g is the largest

• On the top of Mount Everest

• On the top of Qutub Minar

• At a place on the equator

• A camp site in Antarctica

When a fruit falls from a tree

• Only the earth attracts the fruit

• Only the fruit attracts the earth

• Both the earth and the fruit attract each other

• They repel each other