Wave Phenomena and Interference Concepts

Mrs. Vodashawn explains wave phenomena including reflection, refraction, diffraction, and interference. The lesson includes simulations and demonstrations to illustrate how waves behave in different scenarios, such as bouncing off surfaces, changing direction in different media, bending around edges, and interacting with each other. The video aims to help students develop models based on experimental evidence to understand these concepts.

What is the primary task students need to complete in the introduction section?

• Write an essay on wave phenomena

• Fill out a table with definitions and diagrams

• Conduct an experiment on sound waves

• Create a video on wave behavior

What happens to a wave when it reflects off a surface?

• It passes through the surface

• It changes its speed

• It bounces back

• It disappears

In the context of reflection, what is true about the angle of incidence and the angle of reflection?

• The angle of incidence is always larger

• They are equal

• They are always different

• The angle of reflection is always larger

What causes a straw to appear bent when placed in a glass of water?

• Refraction of light

• Interference of light

• Diffraction of light

• Reflection of light

How does the density of a medium affect the refraction of a wave?

• The denser the medium, the less the wave bends

• Waves do not refract in dense media

• The denser the medium, the more the wave bends

• Density has no effect on refraction

What is diffraction?

• The bouncing back of waves from a surface

• The bending of waves around an edge or through an opening

• The combination of two waves to form a new wave

• The change in wave speed and direction

What happens to waves when they pass through a narrow gap?

• They stop moving

• They reflect back

• They diffract

• They refract

What is constructive interference?

• When two waves cancel each other out

• When two waves combine to create a larger amplitude

• When a wave changes direction in a new medium

• When a wave bends around an obstacle

What results from destructive interference?

• A change in wave speed

• A larger wave

• A smaller or no wave

• A change in wave direction

How are beats formed in wave interference?

• By two waves of different frequencies interfering

• By two waves diffracting through a gap

• By two waves refracting through a medium

• By two waves reflecting off a surface