# GENERAL KNOWLEDGE

## GK

### NUCLEAR SCIENCE

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Total amount of mass and energy together in a system is
 A zero B constant C increasing D decreasing
Explanation:

Detailed explanation-1: -Einstein’s equation, E = mc2, shows that matter and energy are two forms of the same thing. It also shows that there is a tremendous amount of energy (E) in a small mass (m) of matter. In nuclear reactions, matter changes to energy, but the total amount of mass and energy together does not change.

Detailed explanation-2: -The equation E = mc^2, where E = energy, m = mass, and c = the speed of light, is used to express the relative nature of mass and energy.

Detailed explanation-3: -states that the total amount of energy in the universe is constant and conserved. In other words, there has always been, and always will be, exactly the same amount of energy in the universe. energy may be transferred from place to place or transformed into different forms, but it cannot be created or destroyed.

Detailed explanation-4: -"Energy equals mass times the speed of light squared.” On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing. Under the right conditions, energy can become mass, and vice versa.

Detailed explanation-5: -Mass is anything that has weight and occupies space whereas Energy is the ability to do work or to put matter into motion.

There is 1 question to complete.