Science Flashcard on Light and Sound

Front

What is the speed of sound waves in air compared to other substances?

Back

Sound waves travel slowest through air.

Front

Why does Erika hear her echo in the Grand Canyon?

Back

The sound waves reflected off the canyon walls.

Front

What part of a wave is referred to as 'Amplitude'?

Back

Amplitude is the height of the wave from its rest position.

Front

In which medium does light travel the slowest?

Back

Light travels slowest in solids.

Front

What causes a rainbow to form in the sky?

Back

A rainbow forms when sunlight is refracted as it passes through water droplets.

Front

What is the definition of 'wavelength'?

Back

Wavelength is the distance between two consecutive crests or troughs in a wave.

Front

What is 'refraction' in the context of light?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is 'reflection' in sound?

Back

Reflection is when sound waves bounce off a surface.

Front

What is the difference between 'crest' and 'trough' in a wave?

Back

Crest is the highest point of a wave, while trough is the lowest point.

Front

How does temperature affect the speed of sound?

Back

Sound travels faster in warmer air than in cooler air.