Unit 5 Practice Test: Light

What do you call the full range of EM waves?

• Light range

• Light Spectrum

• Electromagnetic Spectrum

• infrared

________________________ is the transfer of energy as electromagnetic waves.

• radiation

• refraction

• reflection

• scattering

Tags

NGSS.MS-PS4-1

Frequencies longer than red wavelengths that are below the level of visible light are_____________

• LED

• Infrared

• Laser

• ultraviolet

Light bouncing off a surface is _______________________.

• radiation

• refraction

• scattering

• reflection

Tags

NGSS.MS-PS4-2

Light bending when it goes from one medium to another is called ________________.

• radiation

• refraction

• scattering

• reflection

Tags

NGSS.MS-PS4-2

When light is sent in many directions it is _________________________.

• radiation

• refraction

• scattering

• reflection

Tags

NGSS.MS-PS4-2

____________________ emits light when it gets very hot. Only 8% of the energy produced goes to visible light!

• LEDs

• Lasers

• fluorescent light

• incandescent light

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A special coating causes this light to convert UV light to visible light.

• LED

• Laser

• Fluorescent Light

• Incandescent Light

Tags

NGSS.MS-PS4-2

This stands for LIGHT EMITTING DIODES and almost 100% of the energy it produces goes to visible light.

• LED

• Laser

• Fluorescent

• Incandescent

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

This is an intense BEAM of light with very small range of wavelengths.

• LED

• Laser

• Fluorescent light

• incandescent light