Light and Sound Flashcards
A wave transfers _______. It does not transfer _________.
Energy, matter
In a __________ wave the vibration of the particles is perpendicular to the direction of energy transfer
transverse
In a _______ wave the vibration of the particles is parallel to the direction of energy transfer
longitudinal
Transverse wave- the _________ of the particles is ___________ to the direction of energy transfer
vibration/oscillation, perpendicular
Longitudinal wave- the _______ of the particles is _________ to the direction of energy transfer
vibration/oscillation, parallel
In a longitudinal wave, areas where the particles are pushed together are called ________ and areas where the particles are spread out are called _________
compressions, rarefactions
A louder sound will have a higher ________.
amplitude
A high pitched sound will have a higher ________
frequency
Give an example of a longitudinal wave
sound
Give an example of a transverse wave
light (also radio, microwaves, infra-red, UV, X-ray, gamma rays, water waves)
An object which gives off light is known as…
luminous
How can we see non-luminous objects?
because light is reflected off the object
When light hits an object and “stops” it is known as…
absorption
When light hits an object and bounces off it is known as…
reflection
A material that lets light through without scattering is known as…
transparent
What is an opaque material?
A material that does not let light through
An object that scatters light as it passes is known as…
translucent
How does the angle of incidence compare to the angle of reflection?
they are equal/the same