Refraction

We can see objects because of_______

• reflection
• refraction
• transmission
• diffraction

Tags

NGSS.MS-PS4-2

How does light behave as it enters these mediums?

• continue its path as straight line.
• bends toward the normal
• bends away from the normal
• reflects

Absolute refractive index of any medium is always _______.

• less than 1
• greater than 1
• 1
• 0

Swimming pools and the ocean look shallower than they really are due to:

• reflection 
• dispersion
• refraction
• total internal reflection

The formula to calculate the refractive index is

• n=cv
• n=v/c
• n=c/v
• v=nc

What is this called?

• refraction
• reflection
• reconstroction
• retraction

Tags

NGSS.MS-PS4-2

According to the Law of reflection, a light ray striking a mirror

• continues moving through the mirror in the same direction
• moves into the mirror at a slightly different angle
• bounces off the mirror toward the direction it came from
• bounces off the mirror at the same angle it hits.

A ray of light traveling from air into crown glass strikes the surface at an angle of 30 degrees. What is the angle of refraction? (air n=1, crown glass n=1.532)

• 39.7 degrees
• 19.2 degrees
• 59.1 degrees
• 12.3 degrees

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

The fact the two angles are the same is an example of....

• Refraction
• Angle of Incidence
• Law of reflection
• Magnification