S19 WU

From Maxwell's equations, we learned that light is a ....

• scalar

• vector

• particle

• electromagnetic wave

Tags

NGSS.HS-PS4-3

What is the law of reflection?

• The angle of incidence is equal to twice the angle of reflection.
• The angle of incidence is always greater than the angle of reflection.
• The angle of reflection is always zero degrees.
• The angle of incidence equals the angle of reflection.

Your image in a mirror:

• is not as good looking as you really are.
• is upside down.
• is always bigger than you.
• seems to be behind the mirror.

Tags

NGSS.MS-PS4-2

Which of these statements is true?

• Light travels in straight lines.
• Light is stopped when it meets a solid object.
• Light does not travel in straight lines.
• Light will only travel for about 2000km before it stops.

Tags

NGSS.MS-PS4-2

In a vacuum, which light will travel the fastest?

• blue

• ultraviolet

• xrays

• same speed

What unit is used to describe frequency of waves?

• decibel

• meters

• hertz

• Newtons

Tags

NGSS.HS-PS4-1

A concave mirror is curved

• inward

• outward

In a given medium, what is the fastest object?

• Sound
• Electrons

• Light
• Electricity

Tags

NGSS.HS-PS4-3

• c = a + b
• c = a - b

When doing a Snell's Law problem and you get a domain error from arcsin. What does this mean?

• Total internal reflection

• The light is emitted towards the normal

• This is not physically possible

• You need to convert degrees to radian