Warm Up 03/25 Practice CRCT Question

Which waves have some electrical properties and some magnetic properties?

A. longitudinalB. transverseC. mechanicalD. electromagnetic

Closing 03/25Practice CRCT Question

Electromagnetic waves can transfer energy without a(n)…

A. electric fieldB. mediumC. magnetic fieldD. change in either electric or magnetic fields.

Warm Up 03/26 Practice CRCT Question

Which electromagnetic waves have the longest wavelengths and lowest frequencies?a. infrared b. radio waves c. ultraviolet d. gamma rays

Closing 03/26Practice CRCT Question

Which of the following is true of ultraviolet rays?

a. They are visible.b. They carry data to televisions and radios.c. They help your body produce vitamin D.d. They provide the energy that bakes your pizza.

Warm Up 03/27 Practice CRCT Question

Which color in visible light has the longest wavelength? A. redB. violetC. blueD. yellow

Closing 03/27Practice CRCT Question

Which type of electromagnetic wave has the greatest wavelength? a. radio wavesb. gamma raysc. ultraviolet raysd. microwaves

 

Warm Up 03/28 Practice CRCT Question

Frosted glass and wax paper are materials that are… a. transparentb. translucentc. cleard. opaque 

Closing 03/28Practice CRCT Question

A clear glass and water are examples of what kind of material? a. opaqueb. transparentc. translucentd. shiny

 

Warm Up 03/29Practice CRCT Question

The bending of light rays as they enter a new medium is called…

a.reflection.b.refraction.c.diffraction.d.absorption.

Closing 03/29Practice CRCT Question

The range of electromagnetic waves placed in a certain order is called the…a. electromagnetic spectrum b. electromagnetic wavelength

c. electromagnetic frequencyd. electromagnetic field