Question bank: Waves: Elements of a Wave

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Question 1:

Very Easy

A sound wave propagates in a classroom at a constant speed of 340 m/s. A student claps and creates a sound pulse that travels through the air. The sound pulse moves in all directions and reaches two opposite walls of the room, reflecting back to the point of origin. If the student is at a distance of 5 meters from one of the walls, determine the time it takes for the pulse to reach the other wall and return to the point of origin, considering that the room is an ideal environment without sound absorption, and disregarding the student's reaction time to clap.

Waves: Elements of a Wave

Multidisciplinary Question

Question 2:

Medium

Waves: Elements of a Wave

Question 3:

Medium

Waves: Elements of a Wave

Question 4:

Easy

A wave is a phenomenon that carries energy without carrying matter. They can be classified in various ways, including the direction of particle vibration in relation to the wave propagation direction. Considering a sound wave propagating in the air, where the speed of sound is approximately 340 m/s, a student observes that between two consecutive peaks of air compression, there is a distance of 1.7 m. Considering the definition of wavelength (λ) as the distance between two identical points in a wave, and the frequency (f) of the sound wave, which is the number of cycles that repeat in one second, perform the following calculations: 1. Determine the frequency of the sound wave observed by the student. 2. If the sound source is altered in such a way that the distance between two consecutive peaks of air compression becomes 0.85 m, what will be the new frequency of the sound wave emitted by the source? Consider that the speed of sound in the air remains constant and that the sound source emits a continuous and uniform sound.

Waves: Elements of a Wave

Contextualized Question

Calculus Question

Question 5:

Medium

Waves: Elements of a Wave

IARA TIP

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