8th Grade Science Guide

8.2: Physics 3 Dimensions & Progressions

Unit 1

frequency multiplied by wavelength. Explore the factors that affect wave power, including amplitude, frequency, tension, and density of the medium. Explore the characteristics of combined waves.

frequency, and speed of waves.

Activity: Musical Instruments

Objective

Overview

Materials

● Students will build and play musical instruments that allow them to compare the relative wavelengths and hear the resulting sounds. ● By increasing the energy used to make the sounds (blowing harder) students will compare the sound

● LabSheet ● Boomwhackers - can purchase on Amazon ● Row Your Boat ● Twinkle Little Star

● I can explain how a wave's amplitude is

related to the energy of a wave using several models to support the explanation. (qualitative & quantitative)

changes made when amplitude changes.

Activity: Light Probes

Objective

Overview

Materials

● I can draw a model that shows the patterns of

● Students use a light probe and various light sources to measure light intensity and relate it to amplitude.

● LabSheet ● Vernier monitor and light intensity probe, meter

how a wave’s amplitude is related to the energy of thewave.

stick, masking tape, different light sources

● I can explain how a wave’s amplitude is

related to the energy of a wave using several models to support the explanation. (qualitative & quantitative)

Activity: Informational Text Reading

Objective

Overview

Materials