Light Waves and the Electromagnetic Spectrum

Which option gives the CORRECT order of the electromagnetic spectrum from LEAST frequency (longest wavelength) to HIGHEST frequency (shortest wavelength)?

• radio, microwave, infrared, visible light, ultraviolet, X-rays, gamma rays

• visible light, radio, microwave, infrared, ultraviolet, X-rays, gamma rays

• gamma rays, X-rays, ultraviolet, visible light, infrared microwave, radio

If the amplitude of a light wave is INCREASED, its ______________ will also INCREASE,

• wavelength

• frequency

• color

• brightness

Which type of wave can travel through space?

• seismic wave

• mechanical wave

• electromagnetic wave

• sound wave

When ALL colors of the spectrum are ABSORBED by an object, the object appears to be __________.

• white

• black

• multicolored

The bending of light as it enters a new medium is called ________.

• absorption

• refraction

• transmission

• reflection

When we can see through an object clearly, we say the object is _________.

• opaque

• translucent

• transparent

Light hits a surface an no light is transmitted. The surface must be _______.

• transparent

• translucent

• opaque

A flashlight shines on a large black towel. What process is demonstrated?

• absorption of light

• refraction of light

• diffraction of light

• reflection of light

Which EM wave can be used to treat cancer AND can also cause cancer?

• infrared

• microwaves

• gamma rays

• radio waves

Light hits a surface and SOME light is transmitted, but some is not. This surface must be ____________.

• opaque

• transparent

• translucent