Reflection/Refraction

When light hits an area and bounces back it is called:

• echo

• refraction

• reflection

• absorbing

Tags

NGSS.MS-PS4-2

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

Tags

NGSS.MS-PS4-2

What is the best explanation for Mickey seeing himself in the mirror?

• refraction

• absorbed

• reflection

• flipped

Tags

NGSS.MS-PS4-2

In the diagram, which letter represents the angle of incidence?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-2

Law of reflection state that - The angle of incidence is .................. to the angle of reflection.

• equal
• double
• half

Tags

NGSS.MS-PS4-2

The imaginary line perpendicular to a reflecting surface is called _____.

• a crooked line

• a parallel line

• the angular line

• the normal line

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

Tags

NGSS.HS-PS4-1

The formula to calculate the refractive index is

• n=cv
• n=v/c
• n=c/v
• v=nc

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.

Tags

NGSS.MS-PS4-2

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