1. 8th grade Warm Ups for week of 2-12-18

2. Monday(Mon.):
WU: As the wavelengths of the EM waves decreases, what happens to their frequencies and their energies?
Ans: As the wavelengths decrease, the frequencies and energies increase.

3. Tuesday(Tues.):
WU: What is infrared radiation/rays and give examples?
Ans: 1: Infrared radiation is the invisible heat that you feel.
2: Examples include fires,heat lamps and infrared cameras.

4. Wednesday(Wed.): 2-14-18 WU: What is a thermogram?
Ans: 1: A thermogram is an image that shows regions of different temperatures in different colors.
2: Warmer objects given off infrared waves with more energy and higher frequencies than cooler objects.

5. Thursday(Thurs.) 2-15-18 WU: What kind of matter blocks X-rays?
Ans: X-rays are blocked by dense matter such as bone or lead.

6. Friday(Fri.)2-16-18 EQ: How does light interact with matter?
WU: How can light move through objects?
Ans: It can be transmitted(where it passes through the object), reflected, or absorbed.