P.S. ch17 vocab waves

Reflection

• The bending of a wave as it passes through different mediums.

• The bouncing back of a wave when it hits a surface through which it cannot pass.

• The absorption of a wave by a surface.

• The scattering of a wave in multiple directions.

Diffraction

• Occurs when an object causes a wave to change direction and bend around it

• Is the reflection of waves off a surface

• Is the absorption of waves by a medium

• Is the transmission of waves through a barrier

high pitched sounds

• short wavelength, high frequency

• long wavelength, low frequency

• medium wavelength, medium frequency

• no wavelength, variable frequency

medium

• A type of wave

• Material through which a wave travels

• A measurement of frequency

• A method of sound production

wave

• A disturbance that transfers energy from place to place

• A type of particle that moves through a medium

• A static position of matter

• A force that acts on an object

Frequency

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

• the speed of sound in a medium

• the amplitude of a wave

• the distance between two consecutive peaks

Amplitude

• the height of a wave from rest position to crest

• the distance between two consecutive crests

• the speed of a wave in a medium

• the frequency of a wave in hertz

Wavelength

• distance between the crests of two adjacent waves

• the speed of a wave in a medium

• the amplitude of a wave

• the frequency of a wave

Absorption (wave behavior)

• Waves energy is converted into heat (thermal) energy when it passes through a new material

• Waves are reflected back into the original medium without any energy loss

• Waves continue to travel indefinitely without any change in energy

• Waves are completely absorbed and do not pass through the new material

electromagnetic waves

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

• A type of sound wave that travels through air.

• A physical object that emits light.

• A form of energy that requires a medium to travel.