1. Vocabulary Worksheet Answers
Graphic Arts
Vocabulary Worksheet Answers

2. What is digital art?
Any artwork that uses some kind of computer technology (includes digital cameras, camcorders, etc)

3. Pixel (definition) Unit of measurement, a single point in an image
In a picture, each pixel is assigned a color
Each one of these squares is a pixel

4. A pixel is the smallest piece of information in a digital image
A pixel is the smallest piece of information in a digital image. Each pixel contains a small bit of color, and together, pixels make up a complete image. If you zoom in enough on a digital image, you can begin to see the individual pixels. The more pixels, the better the image looks.
1 pixel pixels pixels pix px px px

5. Digital image sizes are measured in 3 ways: Print size (inches)
Resolution (#pixels x #pixels or ppi)
File size (Bytes, KB, MB, GB, TB)
4.5 inches x 3.5 inches
450 x 338 pixels
61 KB

6. Resolution The number of pixels (or dots) in an image
The higher the number, the sharper the image
300 ppi
25 ppi

7. When you are looking for images on the internet, look for images with high resolution, or high file sizes.
Otherwise, when you blow them up, the images will pixilate (get fuzzy)

8. DPI (dots per inch) How many “dots” in a one by one inch square
Usually refers to the resolution of a printing device (dots = drops of ink)
A measurement of image resolution

9. PPI (pixels per inch)
How many pixels are in a one inch by one inch square
Usually refers to the resolution of an image displayed digitally (like on a computer monitor)
A measurement of image resolution

10. CMYK Cyan, Magenta, Yellow, and Black
Colors used when printing an image
CMYK make up millions of colors when combined in different amounts.

11. RGB
Red, Green, and Blue
These are the colors of the tiny lights in your computer monitors.
RGB combine to make millions of colors when used in different amounts
RGB mode in Photoshop is used when making images for electronic displays (web pages, etc.)

12. File Extension myresume.doc The last three letters in a file name
Tells you what program will open the document
.doc = Microsoft Word
.pdf = Adobe Acrobat
myresume.doc
File name
File extension

13. A note about naming files
NEVER use punctuation marks or capitol letters when naming a file
Spaces are ok, so is the _ underscore mark
OK!
my_resume.doc
OK!
my-resume.doc

14. Your file will become corrupted
…and you’ll lose all of your work!
Corrupted!
myresume :).doc
myresume/good.doc
my.resume!.doc
Corrupted!
Corrupted!

15. .jpg or .jpeg Type of image file
Compresses the data, some of which is lost every time you save it.
That’s why its called a “lossy” file type

16. .tiff An image file type in which no data is lost.
Because there is no loss of data, the file sizes can be big.
A tiff file saved on a PC wont open on a Mac, so its platform dependant

17. .bmp
A type of image file
Not great for high resolution images

18. .psd A Photoshop document. .psd files can only be opened in Photoshop.
.bmp, tiff, jpeg files can be opened with almost any program

19. .png
Add this to your notes
Type of image file
Can set transparency

20. Raster Image The image is made up of pixels.
The sharper the image, the more pixels it has.
Good for photo-realistic images
Raster images can not be enlarged without becoming pixelated

21. Vector Images Images defined by paths (it’s a math thing)
Vector images can be enlarged infinitely without losing clarity of the image
Good for graphic designs, logos, text
Vector images never look “photorealistic”