Light has the highest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond
• water
• flint glass
• barium glass

Tags

NGSS.HS-PS4-1

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond
• water
• flint glass
• barium glass

Tags

NGSS.HS-PS4-1

If a pulse of red light and a pulse of blue light travel in vacuum

• The red pulse travels faster because its index of refraction is smaller
• The blue pulse travels faster
• The two pulses travel at the same speed
• The relative speed depends on the exact wavelengths of the red and blue pulses

Tags

NGSS.HS-PS4-1

According to Willebord Snell, light passing from air to glass will cause the light to

• maintain its original speed 
• accelerate while it is in glass
• increase its speed
• reduce its speed

Tags

NGSS.HS-PS4-1

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

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.

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

Tags

NGSS.HS-PS4-1

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

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

Tags

NGSS.MS-PS4-2

This shows the phenomenon known as....

• reflection
• refraction
• mirrors
• focal point

Tags

NGSS.MS-PS4-2

Light travels through a liquid at 2.25 EE 8 m/s. What is the index of the liquid?

• 1.33
• 1.0
• 1.523
• 2.45

Tags

NGSS.HS-PS4-1