Physics Questions

A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)

 If an object travels in a straight line and its velocity increases or decreases by equal amounts in equal intervals of time, then the acceleration of the object is said to be ______________.

The ____ of a substance is defined as the mass per unit volume.

Kinetic energy is equal to

The sensation of sound persists in the human brain for about:

What is the range of frequencies of sound waves audible to human beings?

Astronauts inside spaceship feel ___ weight.

_______________ states that the ratio of the potential difference across a conductor to the current flowing through it, is a constant, provided that its physical conditions, such as temperature, remain constant.