AP BIOLOGY

Detailed explanation-1: -Extremely low frequency (ELF) radiation is at the low-energy end of the electromagnetic spectrum and is a type of non-ionizing radiation.

Detailed explanation-2: -Extremely low frequency (ELF) fields includes alternating current (AC) fields and other electromagnetic, non-ionizing radiation from 1 Hz to 300 Hz. ELF fields at 60 Hz are produced by power lines, electrical wiring, and electrical equipment.

Detailed explanation-3: -Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

Detailed explanation-4: -Radio Waves–The waves in the electromagnetic spectrum that have the longest wavelengths and lowest frequency are called radio waves.

Detailed explanation-5: -Students will be able to explain that energy travels from the Sun to the Earth by means of electromagnetic waves. Students will understand that shorter wavelengths have higher frequency and energy. Students will understand that longer wavelengths have lower frequency and energy.