PHSC 1001 : Physical Science Exam Sheet

• School: LSU
• Department: Physical Science
• Course: PHSC 1001
• Professor: All

Document Summary

| chapter 7: waves book review | waves travel in many materials, such as water, air, rock, and steel. Even though the material only shakes and none of the molecules move very far, the wave moves and carries energy over long distances. Waves are longitudinal when the direction of vibration is along the direction of the wave. Longitudinal waves include sound waves and the p earthquake wave. This means that the shaking is perpendicular to the direction of the motion. And example is a wave on a rope. Light waves travel in a vacuum or in a material such as glass. They consist of a shaking electric and magnetic field. Electrons and other particles are actually waves, too, but they are so short (waves packets) that this was not discovered until the twentieth century. The fact that particles are waves is called the theory of quantum mechanics.