Sound and Light: Serena McCarty

A measure of how high or low a sound depends on the frequency of the sound wave.

A longitudinal wave that is caused by vibrations and that travels through a solid, liquid, or gas

Frequencies lower than 20hz

Frequencies higher than 20 000hz

when two or more objects vibrate at the same frequency

Describes the rate that a sound wave transmits energy through a solid, liquid, or gas

What is measured in units DB

Frequency of a strings vibration

Fundamental frequency and a whole number multiples of that frequency.

A system that uses sounds or echoes to find the location of the object

A long flexible membrane that some parts vibrate at different frequencies

A unit of light

How fast or slow something travels through a space

System that uses reflected radio waves to find the speed and the location of something

Contains light at all energies, frequencies and wavelength.

Direction of the light

An image that forms at a location. Ex. A mirror

An image of an object that comes together at one location.

Light is random directions

Behaves like a ray

Light rays deflecting off something

Light rays striking in something

Angle of reflection and angle of incidence.

Line in the middle of a perpendicular surface