Why Real Avalanches Aren't Like Cartoons

The video explains avalanches, debunking myths about loud sounds triggering them. It describes the mechanics of avalanches, focusing on powder and slab types. Powder avalanches are loose and less deadly, while slab avalanches are more dangerous and account for most fatalities. The video clarifies that while sound waves can theoretically trigger avalanches, they lack the pressure needed compared to physical disturbances like skiers.

What is the primary factor that prevents snow from sliding down a mountain until an avalanche occurs?

• The loudness of surrounding sounds

• The friction between snow layers

• The temperature of the air

• The density of the snow

Which type of avalanche is described as starting with loose snow on top of denser snow?

• Powder avalanche

• Wet snow avalanche

• Ice avalanche

• Slab avalanche

What is a key characteristic of powder avalanches?

• They form large, solid slabs

• They start small and grow as they move

• They occur only in warm weather

• They are triggered by loud sounds

Why are slab avalanches more deadly than powder avalanches?

• They consist of solid slabs that can crush objects

• They involve larger volumes of snow

• They are triggered by loud sounds

• They occur more frequently

Why is it unlikely for a loud sound to trigger an avalanche?

• Sound waves lack sufficient pressure

• Sound waves do not travel in snow

• Avalanches are only triggered by temperature changes

• Sound waves are absorbed by snow