If there is no force or displacement, work done will be ______.

When the angle between the force applied and displacement is 180°, then the work done will be____

Ram and Shyam push a block of mass 4 kg in opposite
directions. Ram applies a force of 100 N. Shyam applies a
force of 30 N. Find work done by Shyam when block has moved by 2 m.

Life doesn't exist in water

Aristotle classified living organism as per their habitat

Best method to classify living organisms was by their habitat

Autotrophic depends on other organism

Cells are only of one type

Gravitation was discovered by

Force = mass × velocity

A body of mass 1kg is attracted by the earth with a force which is equal to

The value of ‘g'

The value of acceleration due to gravity

If the distance between two bodies becomes half, the gravitational force between them becomes

The gravitational force causes

The value of ‘g’ on Earth is zero at