Physics Questions

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

Calculate the pressure (in Pa) if a thrust of 600 N is applied to an area of 24 sq.m.

The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called ___

In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called _________.

Which of the following is not a vector quantity?

The unit of measurement of noise is

_________ is a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole.

In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)