Light Review

The name of the ray that strikes a mirror is called the _____

• incident ray

• reflected ray

• normal ray

• All options

Tags

NGSS.MS-PS4-2

Light rays travel in a ____ line.

• transverse

• crooked

• straight

• longitudinal

A person standing waist-deep in a swimming pool appears to have short legs because of light

• refraction

• interference

• diffraction

• reflection

Tags

NGSS.MS-PS4-2

The sky is blue because air molecules in the sky

• scatter blue light the best

• are sources of white light

• absorb all of the blue light

• are mirrors that reflect only blue light

Electromagnetic waves

• need a medium to travel through

• can travel through a vacuum

Which of these electromagnetic waves has the shortest wavelength?

• infrared waves

• light waves

• radio waves

• x-rays

Tags

NGSS.HS-PS4-1

Compared to the wavelength of ultraviolet waves, the wavelength of infrared waves are

• the same

• shorter

• Longer

Tags

NGSS.HS-PS4-1

Compared to the velocity of radio waves, the velocity of visible light is

• slower

• faster

• the same

Which of the following are fundamentally different from the others?

• gamma rays

• radio waves

• sound waves

• light waves

Tags

NGSS.MS-PS4-1

Compared to its speed in air, the speed of light in water is

• slower

• the same

• faster

Tags

NGSS.MS-PS4-2