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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 46 · 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 720 × 460 pixel image to half its width and half its height. How many pixels does it have now?
  2. 2.🟦 An image is 310 pixels wide and 220 pixels tall. How many pixels does it have in all?
  3. 3.🟦 An image is 160 × 160 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
  4. 4.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
  5. 5.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
  6. 6.Which of these best fits 9:16? (a) a landscape video (b) a phone story clip (c) a square profile picture (d) a laptop film screen
  7. 7.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
  8. 8.🟦 What is a pixel? (a) a tiny dot of colour (b) a sound (c) a font size (d) a type of paper
  9. 9.🟦 A 16:9 video frame is 1620 pixels tall. How many pixels wide is it?
  10. 10.🟦 A 16:9 video frame is 2720 pixels wide. How many pixels tall is it?
  11. 11.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) exactly the same (d) more colourful
  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.🟦 An image is 280 pixels wide and 100 pixels tall. How many pixels does it have in all?
  14. 14.🟦 A 4:3 video frame is 240 pixels tall. How many pixels wide is it?
  15. 15.🟦 Which aspect ratio best fits a square post? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
  16. 16.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  17. 17.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  18. 18.🟦 Which aspect ratio best fits an older TV screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
  19. 19.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
  20. 20.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  21. 21.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  22. 22.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) louder (d) longer
  23. 23.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
  24. 24.Which of these best fits 4:3? (a) a laptop film screen (b) a widescreen slide (c) an older TV screen (d) a square profile picture
  25. 25.🟦 An image is 90 × 60 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
  26. 26.🟦 An image is 370 pixels wide and 20 pixels tall. How many pixels does it have in all?
  27. 27.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
  28. 28.🟦 Which aspect ratio best fits an album cover? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
  29. 29.🟦 A 16:9 video frame is 1530 pixels tall. How many pixels wide is it?
  30. 30.Which of these best fits 4:3? (a) an upright phone screen (b) a widescreen slide (c) an old-style monitor (d) a phone story clip
  31. 31.🟦 A 16:9 frame is … (a) round (b) a perfect square (c) taller than wide (d) wider than it is tall
  32. 32.🟦 A 16:9 video frame is 1440 pixels tall. How many pixels wide is it?
  33. 33.🟦 Which aspect ratio best fits a landscape video? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
  34. 34.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
  35. 35.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  36. 36.🟦 You shrink a 380 × 460 pixel image to half its width and half its height. How many pixels does it have now?
  37. 37.🟦 A 16:9 video frame is 360 pixels tall. How many pixels wide is it?
  38. 38.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
  39. 39.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  40. 40.🟦 Which aspect ratio best fits a square sticker? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3

Answer key

  1. 82800
  2. 68200
  3. 1:1
  4. 1200
  5. 4:3
  6. a phone story clip
  7. 16:9
  8. a tiny dot of colour
  9. 2880
  10. 1530
  11. squashed or wide
  12. 900
  13. 28000
  14. 320
  15. 1:1
  16. 3
  17. 24
  18. 4:3
  19. 1500
  20. 8
  21. 5
  22. blocky (pixelated)
  23. 9:16
  24. an older TV screen
  25. 3:2
  26. 7400
  27. 270
  28. 1:1
  29. 2720
  30. an old-style monitor
  31. wider than it is tall
  32. 2560
  33. 16:9
  34. 4:3
  35. 4.5
  36. 43700
  37. 640
  38. 750
  39. 9:16
  40. 1:1

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