light sound2
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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
What feature of the wave is shown on the diagram
Wavelength
What feature of the wave is shown on the diagram
Amplitude
Which letter represents the amplitude of a wave?
B
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 ray, 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 and object and “stops” it is known as…
absobtion
When light hits and 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 pass through
An object that scatters light as it passes through is known as…
transluscent
How does the angle of incidence compare to the angle of reflection?
they are equal/the same
If we are drawing a reflected ray, which step is missing 1. Extend the incident line to the surface. 2. 3. Measure angle of incidence. 4. Construct your angle of reflection.
Draw on the normal line
What is refraction?
The change in direction of a wave when it changes speed.
When does refraction occur?
When a wave moves into a different substance