By the end of this playlist, you will be able to: 1. Explain what electromagnetic radiation is and what its basic properties are. 2. Describe evidence for the wave and particle nature of electromagnetic waves (wave-particle duality of light). 3. Use the electromagnetic spectrum to categorize electromagnetic waves by energy, frequency, and wavelength. 4. Apply the wave speed equation to electromagnetic waves.
Objective 1: Explain what electromagnetic radiation is, how it forms, and what its basic properties are. Define electromagnetic waves.
How are EM waves created?
Name one thing that all EM waves have in common. What is the speed of electromagnetic waves? Objective 2: Describe the evidence for the wave and particle nature of electromagnetic waves What is the wave-particle duality of light? Fill in the table below with the different properties that provide evidence for light as a wave or as a particle. Evidence that light is a WAVE:
Evidence that light is a PARTICLE:
Objective 3: Categorize electromagnetic waves by energy, frequency, and wavelength. There are seven different types of electromagnetic waves. List them below. 1.
5.
2.
6.
3.
7.
4. What is the electromagnetic spectrum?
How is the spectrum organized?
What is visible light?
How are visible light and infrared waves similar? How are they different?
How are x-rays and gamma rays similar? How are they different?
Objective 4: Apply the wave speed equation to electromagnetic waves Define wave speed: The wave speed equation:
These symbols mean: v= f= =
When solving problems about EM waves, the wave speed (v) is equal to Note: There are several practice problems in the playlist resources for objective 4 – check them out!