1. Examples: Adding water to soil, plucking a string on a guitar.
2. Diffraction
2.1. Book Definition: It is the bending of the wave as it moves around an obstacle or passes through a narrow opening.
2.2. Our Definition: When a wave hits something and goes through it around it or in a small opening.
2.2.1. Examples: 1. A waves runs into a rock and goes around it. 2. tree in a lake, the waves go around it or through the branches.
3. Interference
3.1. Book definition: Occurs when 2 or more waves overlap and combine together.
3.2. Our definition: When 2 waves hit each other and overlap and combine into one.
3.2.1. Examples: 1. When 2 balls collide and there waves combine. 2. When 2 people run into each other and their waves combine.
4. Constructive Interference
4.1. book definition: occurs when 2 or more waves combine to produce a wave with a larger displacement.
4.2. Our definition: When waves meet and combine at 2 crests or 2 troughs, to make a bigger wave.
4.2.1. Examples: 1. Pushing a child on a swing when she is moving forward. 2. Sending waves through a jump rope.
5. standing waves
5.1. book definition: its a wave that appears to stay in one place it does not seem to move through the medium
5.1.1. definition in your word: when a wave stands alone in one place.
6. Refraction
6.1. Book Definition: Is the bending of a wave as it enters a new medium at an angle.
6.2. Our Definition: When a wave bends as it enters a medium. It enters at an angle.
6.2.1. Examples: 1. Lawn Mower moving from grass to gravel. 2. Ocean waves going into a shallow area.
7. Reflection
7.1. Book Definition: Occurs when a wave bounces off a surface that it cannot pass through.
7.1.1. Examples: 1. A ball cannot go through a wall, it bounces back. 2. A person in a mirror appears opposite.
7.2. Our Definition: When a wave bounces off something that it cannot go through or around.
8. Destructive Interference
8.1. Book Definition: Occurs when 2 or more waves combine to produce a wave with a smaller displacements.
8.2. Our Definition: Waves meet at opposite direction, causing waves to destruct or weaken.
8.2.1. Examples: 1. Pushing a child in a swing when they are not moving forward. 2. When a crest of a wave meets a trough of another wave.