light quiz Biological & Biomedical Sciences Coursework

Name:_________________________                                                         Block:___       Date:___/___/___

Light Quiz

1) Draw a light wave with at least three crests (peaks). Draw a line indicating the wavelength. (2 points)

2) In your own words, describe frequency. (1 point)

3) a) Label the parts of the electromagnetic spectrum below with the following words: (3 points)

*** REDRAW THIS IF ANSWERING ON SEPARATE SHEET OF PAPER ***

Gamma rays                          X-rays                                    Radio waves                          Micro waves

Ultraviolet                   Infrared                       Visible light                 Red                 Green                         Blue

b) Draw and label an arrow with a solid line on the spectrum above showing increasing energy. (1 point)

c) Draw and label an arrow with a dashed line on the spectrum above showing increasing frequency. (1 point

d) Draw and label an arrow with a dotted line on the spectrum above showing increasing wavelength. (1 point)

4) Using a super-advanced telescope, you find a big cloud of a hot gas out past Pluto. You think the cloud might be a combination of helium and hydrogen. You remember from a lab in class that Hydrogen and Helium’s emission spectra look like this:

If the gas really is made of both hydrogen and helium, draw what you would expect the absorption spectra to be from a combination of the two gasses. (3 points)

5) The picture to the right shows an example of light being… (1 point)

(reflected, scattered, diffracted, refracted, absorbed) (choose one)

6) For the following problems, use the provided formulas and constants to solve for the unknown value. Show all work for full credit.

c = λ