Question

Which among the following energy conversion takes place while lighting a matchstick?

• A. Sound energy $\to$ Heat energy + Light energy
• B. Chemical energy $\to$ Heat energy + Light energy
• C. Heat energy $\to$ Chemical energy + Light energy
• D. Electrical energy $\to$ Chemical energy + Light energy

Answer 1

The correct option is B

Chemical energy $\to$ Heat energy + Light energy

The head of the matchstick consists of combustible substances which possess stored energy, i.e., chemical energy. When a matchstick is rubbed against a suitable surface the combustible substances start to burn with the evolution of heat and light energy. Thus, chemical energy stored within combustible substances of matchstick transforms into heat and light energy.