1. SNC2D

2. Similarities and Difference between Waves and Rays? Similarities: They all have a wave pattern They all transfer energy from one point to another Differences: Waves have longer wavelengths than rays Waves have smaller frequency levels than rays

3. Question 1: Which type of electromagnetic radiation has the longest wavelength? Radio Waves

4. Question 2: Which type of electromagnetic radiation has the shortest wavelength? Gamma Rays

5. Question 3: This type of electromagnetic radiation is used in radars to measure automobile speed Microwaves

6. Question 4: Alarms and motion sensors all use this form of electromagnetic radiation Infrared Waves

7. Question 5: T FA small amount of ultraviolent rays is healthy for humans TRUE! We get Vitamin D from the Sun!

8. Question 6: Which two types of electromagnetic radiation can penetrate through human tissue? X-rays and Gamma rays

9. Question 7: This type of electromagnetic radiation is used to kill cancer cells – unfortunately they also kill some healthy cells as well Gamma rays

10. YOUR TASK – You have 10 minutes! You are an investigator trying to figure out a murder case. Write a scenario where you use EACH type of electromagnetic radiation. Be as creative as you wish.