| A | B |
|---|
| Absorption | When light enters, but doesn't leave an object |
| black hoodie | absorbs all colors |
| amplitude | maximum height of a wave- measured from resting position to crest or trough |
| crest | top of a wave |
| electromagnetic radiation | energy carried by an EM wave |
| electromagnetic spectrum | range of EM waves arranged by wavelength and frequency |
| electromagnetic wave | a disturbance in an electric and magnetic field that carries energy |
| frequency | number of waves passing a point in a given amount of time |
| Gamma Rays | EM waves with shortest wavelength and highest energy and frrequency |
| hertz | unit of measure for frequency |
| infrared waves | makes skin feel warm |
| medium | material or stuff that a wave moves through |
| EM waves don't need one of these | medium |
| microwaves | EM waves with the second longest wavelength |
| opaque | allows no light through it |
| prism | tool for separating white light into the rainbow |
| RADAR | a use of an EM wave to measure distance and speed |
| Radio waves | EM waves that are the slowest, least dangerous, and that have the longest wavelength |
| reflection | bouncing of light |
| refraction | bending of light |
| ROYGBIV | colors of the rainbow in order from least energetic to most energetic |
| speed of light | all EM waves travel at this speed in a vacuum like space |
| Sun | ultimate source of energy on Earth |
| translucent | allows some light through it, but the image will be fuzzy |
| transparent | clear, allows all light through it |
| trough | bottom of a wave |
| graphs show us | trends in data |
| independent variable | one thing that the scientist changes in an experiment |
| dependent variable | what responds to the change a scientist made-what's being measured |
| DRY MIX | Dependent, responding variable goes on the Y axis and the manipulated, independent variable goes on the X axis |
| Ultraviolet waves | EM waves that can give you sunburn or skin cancer and help you make Vitamin D |
| vacuum | area (like space) with no particles in it- a void |
| color with a longer wavelength than yellow, but shorter wavelength than red | orange |
| lowest frequency color | red |
| color with shortest wavelength | violet |
| EM wave that's more energetic than UV, but less energetic than Gamma | X-Rays |
| EM wave that makes your skin feel warm | infrared |
| bent pencil in water shows this behavior of light | refraction |
| measured fro crest to crest or trough to trough | wavelength |
| sound is which type of wave | mechanical, because it needs a medium |
| Where do waves travel at different speeds? | in different media |
| a blue shirt reflects which color(s) | blue |
| a blue shirt absorbs which color(s) | all colors except blue |
| white paper reflects which color(s) | all |
| wave | a disturbance that carries energy, not matter |
