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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 805 · 40 questions
TalentJR

Creator's tip (Width times height): Pixels = width × height; megapixels = pixels ÷ 1000000. Aspect ratio = width : height. 16:9 wide, 4:3 squarer, 1:1 square, 9:16 tall. Keep the ratio: a 16:9 frame 1920 pixels wide is 1920 ÷ 16 × 9 = 1080 tall. Printing: inches × pixels per inch.

NameDateTime takenScore ___ / 40
  1. 1.🟦 You shrink a 360 × 720 pixel image to half its width and half its height. How many pixels does it have now?
  2. 2.🟦 You shrink a 100 × 100 pixel image to half its width and half its height. How many pixels does it have now?
  3. 3.🟦 An image is 400 pixels wide and 140 pixels tall. How many pixels does it have in all?
  4. 4.🟦 What is a pixel? (a) a font size (b) a tiny dot of colour (c) a sound (d) a type of paper
  5. 5.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
  6. 6.Which of these best fits 9:16? (a) an album cover (b) an upright phone screen (c) a classic tablet screen (d) a widescreen TV
  7. 7.🟦 An image is 20 pixels wide and 320 pixels tall. How many pixels does it have in all?
  8. 8.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
  9. 9.🟦 You shrink a 40 × 500 pixel image to half its width and half its height. How many pixels does it have now?
  10. 10.🟦 A 16:9 video frame is 360 pixels tall. How many pixels wide is it?
  11. 11.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
  12. 12.🟦 An image is 2720 × 1530 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2
  13. 13.Which of these best fits 16:9? (a) an older TV screen (b) a laptop film screen (c) a phone story clip (d) a square post
  14. 14.🟦 Which aspect ratio best fits a square post? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
  15. 15.🟦 An image is 150 × 150 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
  16. 16.🟦 Which aspect ratio best fits an old-style monitor? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
  17. 17.🟦 The resolution of an image is … (a) the file name (b) the number of pixels (c) the paper colour (d) the font
  18. 18.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  19. 19.🟦 A photo is 5000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  20. 20.Which of these best fits 4:3? (a) a laptop film screen (b) a widescreen TV (c) an older TV screen (d) a square post
  21. 21.🟦 A 4:3 video frame is 150 pixels tall. How many pixels wide is it?
  22. 22.🟦 Which aspect ratio best fits a classic tablet screen? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
  23. 23.🟦 You shrink a 320 × 240 pixel image to half its width and half its height. How many pixels does it have now?
  24. 24.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  25. 25.🟦 An image is 3360 × 1890 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
  26. 26.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  27. 27.🟦 A 4:3 video frame is 120 pixels tall. How many pixels wide is it?
  28. 28.🟦 You shrink a 780 × 800 pixel image to half its width and half its height. How many pixels does it have now?
  29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
  30. 30.Which of these best fits 16:9? (a) a tall phone video (b) a widescreen slide (c) an album cover (d) an old-style monitor
  31. 31.🟦 You shrink a 180 × 740 pixel image to half its width and half its height. How many pixels does it have now?
  32. 32.Which of these best fits 9:16? (a) a widescreen slide (b) a square profile picture (c) an older TV screen (d) a tall phone video
  33. 33.🟦 A 16:9 video frame is 960 pixels wide. How many pixels tall is it?
  34. 34.🟦 You shrink a 140 × 720 pixel image to half its width and half its height. How many pixels does it have now?
  35. 35.🟦 An image is 450 × 300 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
  36. 36.🟦 Which aspect ratio best fits a widescreen TV? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  37. 37.🟦 An image is 310 pixels wide and 270 pixels tall. How many pixels does it have in all?
  38. 38.🟦 A photo is 6000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  39. 39.🟦 You shrink a 760 × 800 pixel image to half its width and half its height. How many pixels does it have now?
  40. 40.Which of these best fits 4:3? (a) a square sticker (b) a classic tablet screen (c) an album cover (d) an upright phone screen

Answer key

  1. 64800
  2. 2500
  3. 56000
  4. a tiny dot of colour
  5. 1200
  6. an upright phone screen
  7. 6400
  8. 1200
  9. 5000
  10. 640
  11. 16:9
  12. 16:9
  13. a laptop film screen
  14. 1:1
  15. 1:1
  16. 4:3
  17. the number of pixels
  18. 12
  19. 15
  20. an older TV screen
  21. 200
  22. 4:3
  23. 19200
  24. 450
  25. 16:9
  26. 9
  27. 160
  28. 156000
  29. 600
  30. a widescreen slide
  31. 33300
  32. a tall phone video
  33. 540
  34. 25200
  35. 3:2
  36. 16:9
  37. 83700
  38. 6
  39. 152000
  40. a classic tablet screen

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