EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What two forms of energy are released when a newspaper is burned?
A
light and heat
B
chemical and electrical
C
electrical and mechanical
D
light and electrical
Explanation: 

Detailed explanation-1: -During the process of burning of paper, the chemical energy changes into heat energy and light energy.

Detailed explanation-2: -When fuels burn they release heat energy and light energy to the surroundings in exothermic reactions known as combustion reactions.

Detailed explanation-3: -Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. For example, chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car’s engine.

Detailed explanation-4: -Burning or combustion is a process in which a substance takes up oxygen and oxidises it, with the release of energy in the form of heat and light. It is a fast process. During burning along with energy, carbon dioxide and water vapour are also produced.

Detailed explanation-5: -What are the two main forms of energy given off when paper burns, and where does the energy come from? Chemical energy stored in the paper is transformed and released as electromagnetic energy and thermal energy.

There is 1 question to complete.