Gravitation — Science STD 9 — Question

The best evidence that the particles of matter are constantly moving comes from the studies of Diffusion and ________. (Brownian motion, Condensation, Melting)

Farming without the use of chemicals as fertilizers, herbicides, and pesticides is known as __________. (Sustainable farming, Organic farming, Hybrid farming)

In a speed-time graph, the area enclosed by the speed-time curve and the time axis gives the __________ by the body. (Distance travelled, Speed, Velocity)

The weight of an object on the moon is about ________ of its weight on the earth.

The _______ are an exception to cell theory. (Viruses, Bacteria, Fungi)

The arrangement of particles is less ordered in the ________ state. However, there is no order in the Gaseous state. (Liquid, Gas, Solid)

Echoes are caused by the ______ of sound.

In order for the force of gravitation between two bodies to become noticeable and cause motion, one of the bodies must have an extremely large __________. (Mass, Speed, Volume)

A mole represents an ____________ number of particles of a substance. (Avogadro, Atomic, Molecular)