Understanding Wave Transformations

The video tutorial covers the concepts of wave transformations, focusing on reflection, refraction, and diffraction. Reflection is explained through angles and normal lines, while refraction is discussed in terms of medium changes and bending of light, with examples like rainbows and sunsets. Diffraction is described as the bending of waves around barriers, with examples such as fuzzy shadows and sound waves. The tutorial concludes with real-life applications of these transformations, including echoes and sonar systems.

What are the three main wave transformations discussed in this unit?

• Reflection, Refraction, Diffusion

• Refraction, Diffusion, Dispersion

• Reflection, Diffusion, Diffraction

• Reflection, Refraction, Diffraction

In the context of reflection, what does the angle of incidence equal?

• Angle of diffraction

• Angle of dispersion

• Angle of refraction

• Angle of reflection

What is diffuse reflection?

• Reflection from a smooth surface

• Reflection that scatters light in many directions

• Reflection that absorbs light

• Reflection that bends light

What causes light to bend during refraction?

• Change in the medium

• Change in color

• Change in temperature

• Change in light intensity

Why do rainbows form?

• Reflection of light in water droplets

• Refraction and dispersion of light in water droplets

• Diffraction of light in the atmosphere

• Absorption of light by clouds

What is the index of refraction?

• A measure of how much a medium diffuses light

• A measure of how much a medium absorbs light

• A measure of how much a medium reflects light

• A measure of how much a medium bends light

What is diffraction?

• Absorption of waves by a medium

• Reflection of waves off a surface

• Dispersion of waves in a medium

• Bending of waves around a barrier

Why do shadows appear fuzzy?

• Due to dispersion

• Due to diffraction

• Due to refraction

• Due to reflection

What is an example of reflection in sound?

• A rainbow

• An echo

• A sunset

• A shadow

How can sound be heard around obstacles?

• Through absorption

• Through refraction

• Through reflection

• Through diffraction