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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 51 · 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 500 × 400 pixel image to half its width and half its height. How many pixels does it have now?
  2. 2.🟦 A 4:3 video frame is 920 pixels wide. How many pixels tall is it?
  3. 3.🟦 You shrink an 800 × 240 pixel image to half its width and half its height. How many pixels does it have now?
  4. 4.Which of these best fits 1:1? (a) a square sticker (b) a widescreen slide (c) a laptop film screen (d) an upright phone screen
  5. 5.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) blocky (pixelated) (c) louder (d) longer
  6. 6.🟦 You shrink a 180 × 480 pixel image to half its width and half its height. How many pixels does it have now?
  7. 7.🟦 An image is 340 pixels wide and 140 pixels tall. How many pixels does it have in all?
  8. 8.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
  9. 9.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  10. 10.🟦 Which aspect ratio best fits a widescreen slide? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
  11. 11.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
  12. 12.🟦 Which aspect ratio best fits a tall phone video? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
  13. 13.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
  14. 14.🟦 What is a pixel? (a) a type of paper (b) a tiny dot of colour (c) a font size (d) a sound
  15. 15.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) a perfect square (d) round
  16. 16.🟦 Which aspect ratio best fits an older TV screen? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
  17. 17.🟦 An image is 1760 × 990 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
  18. 18.🟦 An image is 90 pixels wide and 210 pixels tall. How many pixels does it have in all?
  19. 19.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
  20. 20.Which of these best fits 4:3? (a) a widescreen slide (b) an album cover (c) a square post (d) an older TV screen
  21. 21.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  22. 22.🟦 The resolution of an image is … (a) the file name (b) the font (c) the paper colour (d) the number of pixels
  23. 23.🟦 Which aspect ratio best fits a classic tablet screen? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
  24. 24.🟦 A 16:9 video frame is 800 pixels wide. How many pixels tall is it?
  25. 25.🟦 A 16:9 video frame is 1280 pixels wide. How many pixels tall is it?
  26. 26.🟦 An image is 240 pixels wide and 330 pixels tall. How many pixels does it have in all?
  27. 27.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  28. 28.🟦 An image is 680 × 510 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
  29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
  30. 30.🟦 Which aspect ratio best fits a phone story clip? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
  31. 31.Which of these best fits 9:16? (a) an album cover (b) a classic tablet screen (c) a square sticker (d) an upright phone screen
  32. 32.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) more colourful (c) exactly the same (d) sharper
  33. 33.🟦 A 4:3 video frame is 640 pixels wide. How many pixels tall is it?
  34. 34.🟦 A 16:9 video frame is 1440 pixels wide. How many pixels tall is it?
  35. 35.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
  36. 36.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
  37. 37.🟦 An image is 200 × 200 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
  38. 38.🟦 Which aspect ratio best fits a square sticker? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
  39. 39.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
  40. 40.🟦 You shrink a 720 × 260 pixel image to half its width and half its height. How many pixels does it have now?

Answer key

  1. 50000
  2. 690
  3. 48000
  4. a square sticker
  5. blocky (pixelated)
  6. 21600
  7. 47600
  8. 16:9
  9. 3
  10. 16:9
  11. 16:9
  12. 9:16
  13. 900
  14. a tiny dot of colour
  15. wider than it is tall
  16. 4:3
  17. 16:9
  18. 18900
  19. 16:9
  20. an older TV screen
  21. 20
  22. the number of pixels
  23. 4:3
  24. 450
  25. 720
  26. 79200
  27. 2
  28. 4:3
  29. 1200
  30. 9:16
  31. an upright phone screen
  32. squashed or wide
  33. 480
  34. 810
  35. 600
  36. 1:1
  37. 1:1
  38. 1:1
  39. 1200
  40. 46800

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