Question 1

the bouncing back of an object or wave when it hits a surface through which it cannot pass

Accepted Answer

Reflection

Question 2

when light is taken into an object and turned into heat energy

Accepted Answer

Absorption

Question 3

when light passes through an object

Accepted Answer

Transmission

Question 4

a type of material that transmits light without scattering it

Accepted Answer

Transparent

Question 5

a type of material that scatters light as it passes through it.

Accepted Answer

Translucent

Question 6

a type of material that reflects or absorbs all of the light that it strikes

Accepted Answer

Opaque

Question 7

the bending of light waves as they enter a new medium at an angle, caused by a change in speed

Accepted Answer

Refraction

Question 8

the bending or spreading of waves as they move around a barrier or pass through an opening

Accepted Answer

Diffraction

Question 9

the interaction between waves that meet

Accepted Answer

Interference

Question 10

used in transmitting television and radio signals

Accepted Answer

Radio waves

Question 11

used in radar and to quickly cook and heat foods

Accepted Answer

Microwaves

Question 12

sometimes called "heat radiation", used in heat lamps, and in detecting the location of newborn stars

Accepted Answer

Infrared waves

Question 13

only part of the spectrum we can see

Accepted Answer

Visible light

Question 14

causes sunburns and helps produce Vitamin D

Accepted Answer

Ultraviolet rays

Question 15

useful for medical applications (seeing bones) sometimes used to detect black holes

Accepted Answer

X-Ray

Question 16

used to treat cancer cells and sometimes used to detect black holes

Accepted Answer

Gamma rays

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