Definition
What does opaque mean?
To prevent light from passing through.
False
In which medium does light travel the fastest?
a. Vacuum
b. Air
c. Water
a. Vacuum
What does transparent mean?
Allowing light to pass through.
Light bends when it travels through water because light travels slower in water.
True
Explain the difference between reflection and refraction.
Reflection is when light bounces off a surface whereas refraction is when light bends as it passes through from one substance to another.
The meaning of refraction is ...
The bending of light as it enters a different medium.
If a light beams hits a glass block perpendicular to the block, the light beam will not be refracted.
True.
What happens when light travels through a diverging lens?
The light is refracted outwards and spreads out.
What is an angle of refraction?
The angle at which light enters a different medium.
Converging lenses focus light inwards whereas diverging lenses focus light outwards.
True
Why is it that a mirror cannot refract light?
Because a mirror is opaque.
What does angle of refraction mean?
The angle at which light leaves a medium to enter another.
When light enters the eye, the image produced on the retina is the right way up.
False
How does your eye lens change when you focus on a close object?
Your eye lens becomes thicker.