Question

describing change of direction of waves
identify each wave interaction based on how it changes direction.
the wave changes direction as it bends and scatters.
the wave changes direction as it changes its speed.
the wave changes direction at an angle equal to the angle of incidence.

Explanation:

1. When a wave bends and scatters, it is diffraction. Diffraction is the bending of waves around obstacles and the spreading out of waves beyond openings.
2. When a wave changes direction as it changes speed, it is refraction. Refraction occurs when a wave passes from one medium to another and its speed changes, causing a change in direction.
3. When a wave changes direction at an angle equal to the angle of incidence, it is reflection. The law of reflection states that the angle of incidence is equal to the angle of reflection.

Answer:

1. Diffraction
2. Refraction
3. Reflection