| A | B |
|---|
| Which bulb uses less energy, fluorescent or incandescent? | fluorescent |
| Give the order of appearance of colors in the visible spectrum going from lowest to highest frequency.. | ROY G. BIV (red, orange, yellow, green, blue, indigo and violet. |
| What is the smallest particle of light called? | photon |
| Which rays are even more penetrating than X-rays? | gamma rays |
| All the wavelengths of colors in the visible spectrum combine to make ___ light. | white |
| When light travels from a vacuum into a medium like water, its velocity ___. | slows down |
| Do electromagnetic waves need a medium to travel through? | No |
| Light is blocked completely by an object that is ___. | opaque |
| These waves are used for communications and cooking. | microwaves |
| Warm objects emit this type of radiation. | infrared |
| The earth's ozone layer filter out this form of radiation. | ultraviolet |
| A triangular-shaped piece of glass is called a ___. | prism |
| An object that partially scatters light passing through it is said to be ___. | translucent |
| The band of colors formed when white light is separated is called the color ___. | spectrum |
| Besides a prism what else can separate white light into its color spectrum? | diffraction grating |
| What instrument uses a diffraction grating to see the bright line spectra of a glowing gas? | spectroscope |
| An imaginary perpendicular line drawn to the point on a surface where an incident light waves striikes is call the ___. | normal |
| An electromagnetic wave that has a long wavelength has a low ___. | frequency |
| Blue paint will ___ yellow light. | absorb |
| Green glass will ___ green light. | transmit |
| Red paint will ___ red light. | reflect |
| A color sensitive cell in the eye's retina is a ___ cell. | cone |
| In reflection the angle of incident ___ the angle of reflection. | equals |
| A light wave that bounces from the surface of an of object is said to be ___. | reflected |
| Light that is bent as it travels from one medium through another is said to be ___. | refracted |
| ___ occurs when light bends while going past a corner or opening. | Diffraction |
| The details of a object can be seen through a ___ object. | transparent |
| These communication waves have the longest waves and the lowest frequencies. | radio waves |
| This electromagnetic radiation is useful for diagnosing broken bones. | X-rays |
| Radiation that can cause chemical changes in matter is called ___ radiation. | ionizating |
| Along with blue and green, this is a primary light color. | red |
| An object that is ___ absorbs all colors and reflects very little back. | black |
| The primary pigments include cyan, yellow and ___. | magenta |
| This light source emits only one wavelength of light. | laser |
| When cyan, yellow and magenta paints are mixed together, they would probably produce ___. | black |
| This radiation gives you a tan in the summertime. | ultraviolet |
| This color lies between orange and green on the visible light color spectrum. | yellow |
| The pigment color of cyan is the color of ___. | blue |
| An FM radio station broacasts at a frequency measured in ___. | megahertz (MHz) |
| This radio station broadcasts at frequencies measured in kilohertz (KHz). | AM |
