Sound — Science STD 9 — Question

The sum of the potential and kinetic energies of a body is called __________ energy. (Chemical, Mechanical, Nuclear)

Fill in the blanks with suitable words:
The physical quantity which gives both, the speed and direction of motion of a body is called its __________.

Distance and speed are __________ quantities. (Scalar, Vector, Derived)

Sublimation is the change of gaseous state directly to solid state without going through the ________ state. (Liquid, Gas, Vapour)

Almost all the mass of an atom is concentrated in a small region of space called the __________. (Nucleus, Electron cloud, Proton shell)

A crop which has been developed by introducing a new gene from any other source to obtain desired characteristics is called a __________ crop. (Hybrid, Genetically Modified, High Yielding)

Cellular organelles called _________ are often referred to as suicidal bags. (Ribosomes, Lysosomes, Golgi bodies)

Temp on Kelvin scale = Temp on Celsius scale + _________.