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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 673 · 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.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  2. 2.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
  3. 3.Which of these best fits 9:16? (a) a tall phone video (b) an old-style monitor (c) a square sticker (d) a square post
  4. 4.🟦 A 4:3 video frame is 120 pixels tall. How many pixels wide is it?
  5. 5.🟦 You shrink a 720 × 140 pixel image to half its width and half its height. How many pixels does it have now?
  6. 6.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) squashed or wide (c) exactly the same (d) sharper
  7. 7.Which of these best fits 4:3? (a) a classic tablet screen (b) a tall phone video (c) a phone story clip (d) a laptop film screen
  8. 8.🟦 An image is 520 × 390 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
  9. 9.🟦 A photo is 6000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  10. 10.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
  11. 11.🟦 An image is 180 pixels wide and 90 pixels tall. How many pixels does it have in all?
  12. 12.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  13. 13.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  14. 14.🟦 The resolution of an image is … (a) the paper colour (b) the font (c) the number of pixels (d) the file name
  15. 15.🟦 Which aspect ratio best fits a square post? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
  16. 16.🟦 An image is 560 × 420 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
  17. 17.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
  18. 18.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) blocky (pixelated) (c) sharper (d) louder
  19. 19.🟦 Which aspect ratio best fits a square sticker? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  20. 20.🟦 An image is 230 pixels wide and 70 pixels tall. How many pixels does it have in all?
  21. 21.🟦 You shrink a 100 × 40 pixel image to half its width and half its height. How many pixels does it have now?
  22. 22.🟦 Which aspect ratio best fits a laptop film screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
  23. 23.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  24. 24.Which of these best fits 9:16? (a) an old-style monitor (b) a square sticker (c) an upright phone screen (d) an older TV screen
  25. 25.🟦 A photo is 5000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  26. 26.🟦 An image is 300 × 200 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
  27. 27.🟦 A photo is 1000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  28. 28.Which of these best fits 1:1? (a) an older TV screen (b) a tall phone video (c) a square sticker (d) a laptop film screen
  29. 29.🟦 An image is 440 × 330 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
  30. 30.🟦 A 16:9 video frame is 2080 pixels wide. How many pixels tall is it?
  31. 31.Which of these best fits 4:3? (a) a laptop film screen (b) a tall phone video (c) a square post (d) an old-style monitor
  32. 32.🟦 You shrink a 300 × 400 pixel image to half its width and half its height. How many pixels does it have now?
  33. 33.🟦 An image is 280 × 210 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
  34. 34.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  35. 35.Which of these best fits 9:16? (a) a widescreen TV (b) a square post (c) an album cover (d) a phone story clip
  36. 36.🟦 A photo is 3000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  37. 37.🟦 You shrink a 380 × 700 pixel image to half its width and half its height. How many pixels does it have now?
  38. 38.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
  39. 39.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  40. 40.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

Answer key

  1. 450
  2. 3600
  3. a tall phone video
  4. 160
  5. 25200
  6. squashed or wide
  7. a classic tablet screen
  8. 4:3
  9. 6
  10. 1500
  11. 16200
  12. 900
  13. 12
  14. the number of pixels
  15. 1:1
  16. 4:3
  17. 600
  18. blocky (pixelated)
  19. 1:1
  20. 16100
  21. 1000
  22. 16:9
  23. 20
  24. an upright phone screen
  25. 17.5
  26. 3:2
  27. 2
  28. a square sticker
  29. 4:3
  30. 1170
  31. an old-style monitor
  32. 30000
  33. 4:3
  34. 1:1
  35. a phone story clip
  36. 3
  37. 66500
  38. 4:3
  39. 2.5
  40. 3

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