Topic 4 Lesson 2: Wave Interactions

Front

What is refraction?

Back

The bending of a wave as it enters a new medium.

Front

Which color of light bends the least when refracted?

Back

Red.

Front

How can you create an interference pattern of waves easily?

Back

Toss two pebbles into the water close to each other; the waves from each pebble will interfere with the other.

Front

What types of waves can be refracted?

Back

Anything that travels in waves.

Front

What can you conclude if a beam of light bends more when passing from water to glass than from air to water?

Back

Glass is denser than water.

Front

What is reflection in wave interactions?

Back

The bouncing back of a wave when it hits a barrier.

Front

What is diffraction?

Back

The spreading out of waves when they pass through a narrow opening or around obstacles.

Front

What is the relationship between wave speed and medium density?

Back

Generally, waves travel faster in less dense media.

Front

What happens to light when it passes from air to water?

Back

It bends due to refraction.

Front

What is the principle of superposition in wave interactions?

Back

When two or more waves overlap, the resulting wave is the sum of the individual waves.