8PS Unit 7 Wave Properties and Electromagnetic Radiation

electromagnetic wave

• A form of energy that can move through the vacuum of space.

• A type of sound wave that travels through air.

• A wave that requires a medium to propagate.

• A particle that carries electric charge.

visible light

• electromagnetic waves that are visible to the human eye

• invisible waves that cannot be detected by the human eye

• waves that are only visible under certain conditions

• light that is emitted by artificial sources only

vacuum

• A space where no particles of matter exist

• A region filled with air

• A type of container for liquids

• A state of matter with high density

frequency

• the number of complete wavelengths that pass a point in a given time

• the measure of how often an event occurs over a specific period

• the total distance traveled by a wave in one cycle

• the speed at which a wave travels through a medium

opaque

• impossible to see through; preventing the passage of light

• allowing light to pass through

• partially transparent

• reflecting light without absorption

refraction

• The bending of a wave as it passes at an angle from one medium to another

• The reflection of a wave when it hits a barrier

• The absorption of a wave by a medium

• The scattering of a wave in different directions

encode

• convert (information or an instruction) into a particular form.

• transform data into a different format.

• store information in a database.

• compress files to save space.

sound insulation

• the ability of a barrier to prevent sound from reaching a receiver.

• the process of amplifying sound waves for better clarity.

• the technique of using sound waves to measure distances.

• the method of reducing noise pollution in urban areas.

transmission

• the passage of light through an object

• the reflection of light off a surface

• the absorption of light by a material

• the scattering of light in different directions

energy

• The ability to do work or cause change

• A measure of the amount of matter in an object

• The force that opposes motion

• A type of renewable resource