This type of wave can travel through empty space and transfers energy without needing a medium.
Electromagnetic Wave
The highest point of a wave is called this.
Crest
When a wave bounces off a surface, it’s called this.
Reflection
A lens that curves outward and makes objects appear smaller.
Convex lens
The unit used to measure frequency.
Hertz (Hz)
This type of wave requires a medium like solids, liquids, or gases to travel.
Mechanical Waves
The lowest point of a wave is called this.
Trough
When a wave bends as it passes from one medium to another, it’s called this.
Refraction
A lens that curves inward and can make objects look larger.
Concave lens
If a wave has a high frequency, it also has this kind of energy.
High energy
In this type of wave, particles move perpendicular to the wave’s direction.
Transverse Waves
The distance between two crests or troughs of a wave.
Wavelength
When waves bend and spread around an obstacle or through an opening.
Diffraction
A convex mirror causes light rays to do this.
Diverge
The formula that connects wave speed, wavelength, and frequency.
speed = wavelength × frequency
In this type of wave, particles move parallel to the direction the wave travels.
Longitudinal Waves
The height or energy of a wave, measured from the rest position to the crest.
Amplitude
When a material takes in energy from a wave instead of reflecting or transmitting it.
Absorption
A concave mirror causes light rays to do this.
Converge
When a wave’s amplitude increases, what also increases?
Energy
These two wave types differ in how their particles move one perpendicular, one parallel.
Transverse and Longitudinal Waves
This property measures how often a wave repeats in one second.
Frequency
A mirror demonstrates this wave behavior when light bounces back.
Reflection
These two opposite lens shapes curve outward and inward.
Convex and concave
A wave with long wavelength has what type of frequency?
Low frequency