Question

(a) Two students are measuring the speed of sound. The students are provided with a starting pistol, a stopwatch and a long measuring tape. The starting pistol, when fired, produces a loud sound and a puff of smoke at the same instant. Describe how the students use the apparatus and how they calculate the speed.

Answer 1

The students can find the speed by the following method :

• Intially the students should stand at a distance of 250m between each other
• Student 2 should start the stopwatch when he sees the smoke as as soon as the student 1 fires the pistol
• Student 2 should stop the stopwatch when he listens the sound from the pistol
• The speed of the sound can be calucated by the formula

                                  $speed = \frac{Distance}{Time}$

• In the following method the speed of the sound can be calculated

Answer 2

Answer:

sound

Explanation:

measure