Physical Science 8 mascot: a cartoon scientist heating a sample over a Bunsen burner Mr. LaMarr’s Physical Science ClassroomPlacerita Junior High - Grade 8

Table of Contents

Unit 1: Energy of Motion
Unit 2: Gravity & Energy Related to Position
Unit 3: Electricity & Magnetism
Unit 4: Waves Transmitting Energy & Information
Unit 5: Thermal Energy & Heat Flow
Unit 6: Chemical Energy & Reactions
Unit 4 of 6

Waves Transmitting Energy & Information

NGSS standards: MS-PS4-1MS-PS4-2MS-PS4-3

Every text you send, every song you stream, and every conversation you have travels as a wave. In this unit you'll figure out what waves actually are, how they carry both energy and information, and why the switch from analog to digital changed how the whole world communicates.

The big idea driving this unit

Waves carry energy, not matter, and their amplitude, wavelength, and frequency explain what we hear and see, from pitch and loudness to color. From talking drums to fiber optic cables, information travels as patterns encoded into waves, and digital signals hold up best against noise.

Chapters in this unit