How is the color black created?
Black is created when all of the colors that make up white light are absorbed. Q9: Why does a red shirt appear red? A: A red shirt looks red because all of the colors in the visible light spectrum are absorbed, with the exception of red. Q10: Which travels faster, sound or light? A: Light travels faster than sound. Q10a: Think of a real life example illustrating this information. A: An open ended question, grading is optional. Any answer indicating that you might see a something before you would hear it. Sound Q11: What is necessary to have sound? A: vibration Q12: Sound must travel through a medium. What is a medium? A: Sound cannot travel through a vacuum, it needs a space in which particles can vibrate. Any definition indicating that there must be some sort of “substance” or particles in the air would be acceptable. Q13: Give an example of a high pitch sound, not included in the web page. A: a small dog barking, a violin, a baby’s cry, etc. Q14: Describe the amount of energy of a lo
