Free Printable WorksheetScienceGrade 8Science CurriculumSCI.8.69

8.69 Sound Pitch, Loudness and Medium Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.69 Sound Pitch, Loudness and Medium. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Sound: Pitch, Loudness and Medium - Which relationship best pitch to frequency and loudness to amplitude; describe how the medium affects sound speed and behavior? (NGSS MS‑PS4‑1/2 (connections); TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 8

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 8.69 Sound Pitch, Loudness and Medium skill assessments:

Problem 1Difficulty: Mastery

A sound meter reads 50 dB when one identical laptop fan is running. Three identical fans run at the same time. Assume the fans are independent sources and that adding sources adds intensities. Use: sound level change = 10·log10(intensity factor), and log10(3) ≈ 0.48.

What sound level is the best estimate with three fans?

AAbout 53 dB

BAbout 80 dB

CIt stays 50 dB because frequency does not change

DAbout 55 dB

Solution & Explanation:Three fans means intensity is 3×. Level change = 10·log10(3) ≈ 10·0.48 = 4.8 dB, so 50 dB + 4.8 dB ≈ 55 dB.

Problem 2Difficulty: Mastery

A musician plays a constant 300 Hz note while walking from a carpeted hallway into a stairwell made of concrete. "

The stairwell sounds much louder even though the note is the same. Which pair best explains why?,A. Concrete increases frequency so pitch and loudness both rise | B. Carpet makes sound travel slower so pitch drops | C. Hard surfaces reflect more sound (higher effective amplitude at the listener) while frequency stays 300 Hz | D. Concrete eliminates the need for a medium,C,Concrete reflects sound strongly

Solution & Explanation:and medium practice questions,sound: pitch

Problem 3Difficulty: Mastery

A student is designing a ‘quiet study booth’ and tests two wall materials. Material A reflects most sound; Material B absorbs most sound.

Which material will reduce loudness outside the booth more effectively, and why?

AMaterial A, because reflecting creates more pitch so it cancels outside

BMaterial B, because absorbing reduces transmitted and reflected energy (lower amplitude)

CMaterial A, because reflection increases sound speed so it escapes faster

DMaterial B, because it raises frequency above hearing

Solution & Explanation:Absorbing materials reduce the wave’s energy, lowering amplitude that transmits through or re-radiates. Reflecting can keep sound inside but also can transmit vibrations through structures.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 8 Science students. It aligns with educational standard SCI.8.69 (Relate sound pitch and loudness to vibrations and the medium through which sound travels.).