1. Properties Of Waves
1.1. Speed
1.1.1. How far a wave travels in a given amount of time
1.1.2. Speed = Distance/Time
1.2. Amplitude
1.2.1. Maximum distance the medium vibrates from the rest position
1.2.2. Height of waves crest depends on amplitude
1.3. Frequency
1.3.1. Number of waves that passes a point in a certain amount of time
1.3.2. Measured in hertz (Hz), number of waves per second
1.4. Wavelength
1.4.1. Distance between two corresponding parts of a wave
2. Types Of Waves
2.1. Longitudinal
2.1.1. Direction of wave is parallel to the direction of vibrations of the particles
2.1.2. Example of waves: Sound wave
2.2. Transverse
2.2.1. Direction of wave is perpendicular to the direction of the vibration of the particles
2.2.2. Example of waves
2.2.2.1. electromagnetic waves
2.2.2.1.1. gamma ray
2.2.2.1.2. x ray
2.2.2.1.3. visible light
2.2.2.1.4. microwave
3. Definition
3.1. A disturbance that travels through space or matter transferring energy from one place to another.
4. Behaviour Of Waves
4.1. Reflection
4.1.1. The interaction that occurs when a wave bounces off a surface it cannot pass through
4.1.2. Example: Looking at a mirror
4.2. Refraction
4.2.1. When waves travelling from one medium to another medium due to a change of speed
4.2.2. Example: A rainbow
4.3. Diffraction
4.3.1. When waves bend around the sides of an obstacle, or spread out as they pass through a gap.
4.3.2. Example: Radiowaves