I WONDER - What Is Reflection And Refraction?

The video tutorial explores how waves interact with their environment through reflection, refraction, and diffraction. Reflection is when waves bounce back from a surface, causing echoes. Refraction occurs when waves change direction as they pass through different media, like a straw appearing bent in water. Diffraction involves waves bending around obstacles or spreading through narrow openings, allowing sound to be heard even when the source is obscured.

What is the phenomenon called when waves bounce back after hitting a surface?

• Reflection

• Absorption

• Diffraction

• Refraction

Why do you hear echoes in a large empty room?

• Because of diffraction

• Because of reflection

• Because of absorption

• Because of refraction

What happens to a wave when it passes from one medium to another?

• It refracts

• It diffracts

• It reflects

• It absorbs

Why does a straw appear bent when placed in a glass of water?

• Due to absorption

• Due to refraction

• Due to diffraction

• Due to reflection

What allows you to hear someone's voice even if they are behind a wall?

• Absorption

• Reflection

• Refraction

• Diffraction