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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 232 · 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.🟦 An image is 210 pixels wide and 360 pixels tall. How many pixels does it have in all?
  2. 2.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a sound (d) a type of paper
  3. 3.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  4. 4.🟦 A 16:9 video frame is 1980 pixels tall. How many pixels wide is it?
  5. 5.🟦 An image is 80 × 60 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
  6. 6.🟦 You shrink a 640 × 680 pixel image to half its width and half its height. How many pixels does it have now?
  7. 7.Which of these best fits 4:3? (a) a laptop film screen (b) a classic tablet screen (c) a landscape video (d) a square post
  8. 8.Which of these best fits 16:9? (a) a classic tablet screen (b) a laptop film screen (c) a square post (d) a square sticker
  9. 9.🟦 You shrink a 200 × 520 pixel image to half its width and half its height. How many pixels does it have now?
  10. 10.🟦 You shrink a 600 × 400 pixel image to half its width and half its height. How many pixels does it have now?
  11. 11.🟦 Which aspect ratio best fits a square post? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
  12. 12.Which of these best fits 16:9? (a) an album cover (b) a phone story clip (c) a widescreen TV (d) a square profile picture
  13. 13.🟦 A 16:9 frame is … (a) taller than wide (b) round (c) a perfect square (d) wider than it is tall
  14. 14.🟦 You shrink a 720 × 700 pixel image to half its width and half its height. How many pixels does it have now?
  15. 15.Which of these best fits 9:16? (a) a square post (b) an upright phone screen (c) a widescreen slide (d) an older TV screen
  16. 16.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
  17. 17.Which of these best fits 1:1? (a) an upright phone screen (b) an older TV screen (c) an old-style monitor (d) a square profile picture
  18. 18.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) longer (c) sharper (d) blocky (pixelated)
  19. 19.🟦 An image is 340 pixels wide and 150 pixels tall. How many pixels does it have in all?
  20. 20.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
  21. 21.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) squashed or wide (c) exactly the same (d) sharper
  22. 22.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
  23. 23.🟦 You shrink a 580 × 100 pixel image to half its width and half its height. How many pixels does it have now?
  24. 24.🟦 A 4:3 video frame is 280 pixels wide. How many pixels tall is it?
  25. 25.🟦 An image is 90 × 90 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
  26. 26.🟦 A 4:3 video frame is 880 pixels wide. How many pixels tall is it?
  27. 27.🟦 You shrink a 760 × 460 pixel image to half its width and half its height. How many pixels does it have now?
  28. 28.🟦 An image is 240 × 160 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
  29. 29.🟦 You shrink a 780 × 340 pixel image to half its width and half its height. How many pixels does it have now?
  30. 30.🟦 An image is 150 × 150 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
  31. 31.🟦 You shrink a 480 × 580 pixel image to half its width and half its height. How many pixels does it have now?
  32. 32.🟦 A 4:3 video frame is 80 pixels wide. How many pixels tall is it?
  33. 33.Which of these best fits 4:3? (a) a laptop film screen (b) an old-style monitor (c) a square post (d) a landscape video
  34. 34.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  35. 35.🟦 An image is 50 pixels wide and 40 pixels tall. How many pixels does it have in all?
  36. 36.🟦 You shrink a 500 × 160 pixel image to half its width and half its height. How many pixels does it have now?
  37. 37.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
  38. 38.🟦 An image is 150 pixels wide and 370 pixels tall. How many pixels does it have in all?
  39. 39.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  40. 40.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?

Answer key

  1. 75600
  2. a tiny dot of colour
  3. 4
  4. 3520
  5. 4:3
  6. 108800
  7. a classic tablet screen
  8. a laptop film screen
  9. 26000
  10. 60000
  11. 1:1
  12. a widescreen TV
  13. wider than it is tall
  14. 126000
  15. an upright phone screen
  16. 16:9
  17. a square profile picture
  18. blocky (pixelated)
  19. 51000
  20. 180
  21. squashed or wide
  22. 1350
  23. 14500
  24. 210
  25. 1:1
  26. 660
  27. 87400
  28. 3:2
  29. 66300
  30. 1:1
  31. 69600
  32. 60
  33. an old-style monitor
  34. 2
  35. 2000
  36. 20000
  37. 16:9
  38. 55500
  39. 3
  40. 600

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