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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 308 · 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 340 × 700 pixel image to half its width and half its height. How many pixels does it have now?
  2. 2.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) sharper (c) louder (d) blocky (pixelated)
  3. 3.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
  4. 4.Which of these best fits 1:1? (a) a widescreen slide (b) a laptop film screen (c) a square profile picture (d) a tall phone video
  5. 5.🟦 An image is 20 × 20 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
  6. 6.🟦 A 4:3 video frame is 240 pixels tall. How many pixels wide is it?
  7. 7.🟦 An image is 160 pixels wide and 20 pixels tall. How many pixels does it have in all?
  8. 8.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
  9. 9.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
  10. 10.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) exactly the same (d) more colourful
  11. 11.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
  12. 12.🟦 Which aspect ratio best fits a landscape video? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
  13. 13.Which of these best fits 9:16? (a) an upright phone screen (b) a widescreen slide (c) a landscape video (d) an old-style monitor
  14. 14.🟦 An image is 760 × 570 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
  15. 15.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
  16. 16.🟦 A 16:9 frame is … (a) wider than it is tall (b) taller than wide (c) a perfect square (d) round
  17. 17.Which of these best fits 4:3? (a) an upright phone screen (b) a widescreen TV (c) an old-style monitor (d) a phone story clip
  18. 18.🟦 An image is 320 pixels wide and 380 pixels tall. How many pixels does it have in all?
  19. 19.🟦 You shrink a 520 × 500 pixel image to half its width and half its height. How many pixels does it have now?
  20. 20.🟦 A photo is 6000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  21. 21.🟦 An image is 80 pixels wide and 140 pixels tall. How many pixels does it have in all?
  22. 22.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a sound (d) a type of paper
  23. 23.🟦 A photo is 1000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  24. 24.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  25. 25.🟦 An image is 20 pixels wide and 60 pixels tall. How many pixels does it have in all?
  26. 26.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  27. 27.🟦 Which aspect ratio best fits an older TV screen? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
  28. 28.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
  29. 29.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
  30. 30.🟦 An image is 400 pixels wide and 120 pixels tall. How many pixels does it have in all?
  31. 31.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
  32. 32.🟦 An image is 150 × 150 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
  33. 33.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  34. 34.Which of these best fits 16:9? (a) a phone story clip (b) an upright phone screen (c) a classic tablet screen (d) a laptop film screen
  35. 35.🟦 Which aspect ratio best fits a laptop film screen? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
  36. 36.🟦 An image is 360 pixels wide and 180 pixels tall. How many pixels does it have in all?
  37. 37.🟦 An image is 100 pixels wide and 80 pixels tall. How many pixels does it have in all?
  38. 38.🟦 A 16:9 video frame is 2160 pixels tall. How many pixels wide is it?
  39. 39.🟦 You shrink a 420 × 100 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 widescreen slide (b) an album cover (c) a square profile picture (d) a classic tablet screen

Answer key

  1. 59500
  2. blocky (pixelated)
  3. 4:3
  4. a square profile picture
  5. 1:1
  6. 320
  7. 3200
  8. 16:9
  9. 9:16
  10. squashed or wide
  11. 1800
  12. 16:9
  13. an upright phone screen
  14. 4:3
  15. 180
  16. wider than it is tall
  17. an old-style monitor
  18. 121600
  19. 65000
  20. 12
  21. 11200
  22. a tiny dot of colour
  23. 2
  24. 4.5
  25. 1200
  26. 3
  27. 4:3
  28. 300
  29. 4:3
  30. 48000
  31. 320
  32. 1:1
  33. 2.5
  34. a laptop film screen
  35. 16:9
  36. 64800
  37. 8000
  38. 3840
  39. 10500
  40. a classic tablet screen

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