gravitation

which one of the above graphs represents the variation g from the centre of the earth to infinity

• a only

• b only

• c only

• d only

weight is

• gravitational force

• quantity of matter

• mass of the object

• acceleration due to gravity

Answer explanation

weight is mass times acceleration due to gravity

OR

gravitational force acting on an object is called its weight

Mass of an object on earth is 10 kg. what its value on moon?

• 100 kg

• 100 N

• 10 kg

• can't say anything

The value of g on the surface of earth is

S.I.unit of gravitational force

• N

• kg f

• kg

for upward motion,acceleration is

• +g

• -g

• negative or positive

• zero

Answer explanation

gravitational force is always acting towards the centre of earth

Acceleration du to gravity on the poles is

• greater than that on the equator

• less than that on the equator

• same as that on the equator

• less than or greater than that on the equator

Gravitational force can extend

• to the nearby objects

• upto infinity

• to the objects at 10km

• upto moon

weight of Renu on earth is 600 N. What is the weoght on the moon?

• 600 N

• 60N

• 60 kg

• 100 N

Answer explanation

weight on moon = 1/6 of weight on the earth

for dropping

• v=0

• u=0

• a=+g

• a=-g