Force and Laws of Motion — Science STD 9 — Question

State the general name of the waves on which the particles of the medium vibrate:
In the same direction as wave.

Name these force:
The upward push of water on a submerged object.

Name the negatively charged particle present in the atoms of all the elements.

Give one example where:
A force changes the direction of a moving body.

What is the SI prefix for the following multiples and submultiples of a unit?
10^-6

During the downpour in a village, the rain water carried away excess of nitrogenous and other compounds present in the soil to a pond. How will they affect the growth of algae and phytoplankton in the pond?

Open wells are not very _______.

On what factor/factors does the weight of a body depend?

Whose one of the allotropic forms is a good conductor of electricity. Name the allotrope.