waves

1. diffraction

1.1. Bend in the wave to pass through a narrow opening or around an object

1.2. water moving into shape

1.3. two boulders with water in between them

2. Interference

2.1. when two or more waves overlap and combine together.

2.2. when two or more waves combine.

2.3. Example: when oil spreads to water, reflection from binoculars.

3. constructive interference

3.1. occurs when two or more waves combine to produce a wave with a larger displacement

3.2. when waves combine to make a bigger wave

3.3. waves combine in the ocean

4. Destructive interference

4.1. when two or more waves combine to produce a wave with a smaller displacement

4.2. when two or more waves combine to make a smaller one

4.3. Example: when waves come together and splash, canceled out sound wvaes

5. reflection

5.1. when a wave bounces off a surface it cannot pass through

5.2. when a wave bounces off a surface it cannot pass through

5.3. light in a pool

6. Refraction

6.1. the bending of a wave as it enters a new medium at an angle.

6.2. a wave that bends at an angle to get into the medium

6.3. example: lawn mower from grass to gravel, ocean waves into a shallower area

7. standing waves

7.1. appears to stay in place

7.2. stand still in the water to the naked eye

7.3. pluck a guitar string or elastic band