Reflection
This is what the light ray is called once it reflects off a mirror.
What is reflected ray
True or False: The angle of incidence of a light ray is equal to the angle of refraction
What is false
This part of the electromagnetic spectrum is what we can see.
What is the visible spectrum
Which model of light explains:
that electromagnetic waves travel in straight line.
They spread in all direction
Their intensity decreases as they travel away from the source.
What is ray model of light
True or False: The image that is projected onto your retina is right-side-up
What is false - its upside down!
This is the light ray that first hits the mirror
What is the incident ray
What are the two main types of lenses?
What is converging and diverging lenses?
Issac Newton suggested this model of light
Who is Thomas Young?
Light rays first travel through this part of the eye?
What is Cornea?
If the angle of incidence is 54 degrees, the angle of reflection will be?
What is 54 degrees
in a converging lens, what is the point at which parallel light rays converge called?
What is focal point
This type of electromagnetic radiation is responsible for the sunburns we experience when we're in the sun too long.
What is UV radiation
What is the distance from one crest (or trough) of a wave to the next crest (or trough) called?
What is Wavelenght
How light signals from retina transferred to the brain?
What is the optic nerve?
What are the three main types of mirrors?
What are the convex, concave and flat mirrors?
In which medium would light travel the slowest: space, air or water?
What is water
This type of electromagnetic radiation creates images of our bones on films?
What is X-rays
What is the distance from the centre line to the crest or trough of a wave?
What is Amplitude?
What is the layer of light-sensitive cells in the back of the eye called?
What is retina?
What are the properties of the image in a flat mirror?
right side up,
virtual,
same size
the same distance from the mirror
at what speed electromagnetic waves (including light) travel in a vacuum?
What is 300,000 km/s
This type of radiation is used in cellphone technology?
What is microwaves
What is it called? the number of complete wavelengths that pass a point in one second as the wave goes by.
What is the frequency.
what is the function of the lens in the eye?
Focusing on close objects.