Questions

What is gravity?

One will have an eerie feeling when he/she moves down while playing a Rote Ping. Why?

Mass of an object remains constant but its weight varies from place to place. Give reason.

It is difficult to lift a big stone on the surface of the earth, but it is easy to lift a smaller one. Why?

As you climb Mount Everest, the weight of the goods that you carry decreases. Give reason.

When a marble and a feather are dropped simultaneously in a vacuum, they reach the ground together (at the same time). Why?

Out of the two paper sheets, one is folded to form a ball. If the paper ball and the sheet of paper are dropped simultaneously in the air, the folded paper will fall faster. Why?

Among the objects dropped from the same height in the polar region and the equatorial region of the earth, the object dropped in the polar region falls faster. Why?

Mass of Jupiter is about 319 times the mass of the Earth, but its acceleration due to gravity is only about 2.6 times the acceleration due to gravity of the Earth. Why?

Jumping from a significant height may cause more injury.