SECTION 3-2 REVIEW AND REINFORCE Waves of the Electromagnetic Spectrum • Understanding Main Ideas Complete the table and then answer questions 1-4 on a separate sheet of paper. The Electromagnetic Spectrum 1. Draw an arrow next to the table Type of Electromagnetic and label it Increasing Frequency. Radiation Example of Use 2. Which type of electromagnetic Communication wave is highest in energy? 3. How is radar used to defermine the speed of objects? 4. List the colors of the visible spectrum in order of increasing frequency. Increasing Wavelength Infrared rays Visible light Seeing Ultraviolet rays Check for broken bones inside the body • Building Vocabulary Diagnose and treat cancer Answer the following questions in the space provided. 5. What kind of electromagnetic radiation can honeybees see, but humans cannot see? 6. What is the electromagnetic spectrum? 7. What is MRI and what is it used for? 8. What is a thermogram? 9. What kind of radiation are microwaves? 10. How can a person detect infrared rays without an instrument?