# Waves Properties

## 25 terms · Water Waves, Sound Waves, Light Waves and EM Waves properties

### Wave

A disturbance that transfers energy from place to place.

### Medium

The material through which a wave travels.

### Mechanical Waves

Waves that require a medium through which to travel.

### Energy

The ability to do work.

### Vibration

A repeated back-and-forth or up-and-down motion.

### Transverse Waves

Waves that move the medium at right angles (perpendicular) to the direction in which the waves travel.

### Crest

The high part of a transverse wave.

### Trough

The low part of a transverse wave.

### Longitudinal Waves

Waves that move the medium parallel to the direction in which the waves travel.

### Compression

The part of a longitudinal wave where the particles of the medium are close together.

### Rarefaction

The part of a longitudinal wave where the particles of the medium are far apart.

### Amplitude

The maximum distance the particles of a medium move away from their rest position as a wave passes through the medium.

### Wavelength

The distance between two corresponding parts of a wave.

### Frequency

The number of complete waves that pass a given point in a certain amount of time.

### Hertz (Hz)

Unit of measurement for wave frequency.

### Frequency

number of waves that pass a given point in one second

### Period

Period = 1/Frequency

### Reflection

occurs when a wave strikes an object and bounces off of it

### Refraction

involves a change in the direction and speed of waves as they pass from one medium to another

### Diffraction of a wave

involves a change in direction of waves (bending) as they pass through an opening or around a barrier in their path

### Law of Reflection

states that the angle of incidence is equal to the angle of reflection

### Interference in waves

is the phenomenon that occurs when two waves meet while traveling along the same medium

### Constructive (Positive) Interference

is a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the same direction.

### Destructive (Negative) Interference

is a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the opposite direction

### EM Spectrum

is the distribution of electromagnetic radiation according to its energy