Tag: introduction to science

White colour of the cloud is due to ___________________.

A person walks $100$m, holding a suitcase of weight $100$N. The work done by the applied force is _________J.

State whether given statement is True or False.
The systematic knowledge collected through observation of nature is called science?

Who is considered as a "founding father" of Indian Space Programme ?

Raghu learnt something in school and he told his friends "An object can appear smaller or bigger in size depending on its distance from you. So, an elephant can look as small as a cat if it is far away."
Based on this, his friends said the following:
Kabir: "All stars are of the same size."
Raina: "All other stars are definitely smaller than the Sun."
Karen: "The Sun and the Moon are definitely of the same size.
"Shifa: "There could be a star which is bigger than the Moon."
Who is correct?

ISRO stands for __________________.

Which of the following satellite can help to telecast TV network programmes all over the country ?

An astronaut in outer space will observe sky as ___________.

Name the latest theory of fundamental physics in which the basic entity is a one-dimensional object as against the 'zero-dimensional' points representing the elementary particles.

Geo-stationary satellite revolves at ____________.