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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 576 · 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 × 240 pixel image to half its width and half its height. How many pixels does it have now?
  2. 2.🟦 You shrink a 580 × 740 pixel image to half its width and half its height. How many pixels does it have now?
  3. 3.🟦 What is a pixel? (a) a font size (b) a sound (c) a type of paper (d) a tiny dot of colour
  4. 4.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
  5. 5.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
  6. 6.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  7. 7.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
  8. 8.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
  9. 9.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  10. 10.🟦 A 16:9 frame is … (a) a perfect square (b) taller than wide (c) round (d) wider than it is tall
  11. 11.🟦 You shrink a 260 × 360 pixel image to half its width and half its height. How many pixels does it have now?
  12. 12.🟦 An image is 80 × 60 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
  13. 13.Which of these best fits 16:9? (a) a tall phone video (b) a laptop film screen (c) an older TV screen (d) a square profile picture
  14. 14.🟦 You shrink a 360 × 240 pixel image to half its width and half its height. How many pixels does it have now?
  15. 15.🟦 An image is 310 pixels wide and 50 pixels tall. How many pixels does it have in all?
  16. 16.🟦 A 16:9 video frame is 3360 pixels wide. How many pixels tall is it?
  17. 17.🟦 A 4:3 video frame is 280 pixels wide. How many pixels tall is it?
  18. 18.🟦 A 16:9 video frame is 2880 pixels wide. How many pixels tall is it?
  19. 19.🟦 An image is 30 pixels wide and 330 pixels tall. How many pixels does it have in all?
  20. 20.🟦 A photo is 2000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  21. 21.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  22. 22.Which of these best fits 16:9? (a) an old-style monitor (b) a tall phone video (c) an older TV screen (d) a widescreen TV
  23. 23.🟦 You shrink a 520 × 580 pixel image to half its width and half its height. How many pixels does it have now?
  24. 24.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) louder (d) longer
  25. 25.🟦 An image is 340 pixels wide and 240 pixels tall. How many pixels does it have in all?
  26. 26.🟦 You shrink a 660 × 380 pixel image to half its width and half its height. How many pixels does it have now?
  27. 27.🟦 A photo is 4000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  28. 28.🟦 A 16:9 video frame is 3840 pixels wide. How many pixels tall is it?
  29. 29.🟦 Which aspect ratio best fits an older TV screen? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  30. 30.🟦 A photo is 5000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  31. 31.🟦 Which aspect ratio best fits a widescreen slide? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
  32. 32.🟦 You shrink a 460 × 400 pixel image to half its width and half its height. How many pixels does it have now?
  33. 33.Which of these best fits 9:16? (a) a square sticker (b) an upright phone screen (c) a landscape video (d) an older TV screen
  34. 34.Which of these best fits 4:3? (a) a widescreen TV (b) an older TV screen (c) an upright phone screen (d) a laptop film screen
  35. 35.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  36. 36.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
  37. 37.🟦 An image is 3360 × 1890 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
  38. 38.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  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.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?

Answer key

  1. 30000
  2. 107300
  3. a tiny dot of colour
  4. 320
  5. 1050
  6. 4
  7. 300
  8. 4:3
  9. 450
  10. wider than it is tall
  11. 23400
  12. 4:3
  13. a laptop film screen
  14. 21600
  15. 15500
  16. 1890
  17. 210
  18. 1620
  19. 9900
  20. 6
  21. 4
  22. a widescreen TV
  23. 75400
  24. blocky (pixelated)
  25. 81600
  26. 62700
  27. 10
  28. 2160
  29. 4:3
  30. 10
  31. 16:9
  32. 46000
  33. an upright phone screen
  34. an older TV screen
  35. 7.5
  36. 4:3
  37. 16:9
  38. 9
  39. 1200
  40. 2400

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