Question

Why does a matchstick light when we strike it on a rough surface ?

Answer 1

Answer:

When we strike a matchstick on a rough surface the friction created between them increases and produces heat and results in causing fire to the matchstick. Thus, it is lightened.

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Answer 2

Friction

Explanation:

Friction is a phenomenon which resists motion when an object is rubbed against another. So friction has instances where it is desired and instances where it is not desired.

In cases where friction helps, it becomes desirable. Like when drawing, walking, driving or picking up fallen objects or lighting a matchstick. The friction between the match head and the rough surface helps light the matchstick.