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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 935 · 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 540 × 40 pixel image to half its width and half its height. How many pixels does it have now?
  2. 2.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  3. 3.🟦 The resolution of an image is … (a) the file name (b) the number of pixels (c) the paper colour (d) the font
  4. 4.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) more colourful (d) exactly the same
  5. 5.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  6. 6.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
  7. 7.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  8. 8.🟦 An image is 40 pixels wide and 100 pixels tall. How many pixels does it have in all?
  9. 9.🟦 A 4:3 video frame is 720 pixels wide. How many pixels tall is it?
  10. 10.🟦 Which aspect ratio best fits a square sticker? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  11. 11.🟦 You shrink a 160 × 500 pixel image to half its width and half its height. How many pixels does it have now?
  12. 12.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
  13. 13.🟦 A 4:3 video frame is 320 pixels wide. How many pixels tall is it?
  14. 14.🟦 Which aspect ratio best fits an older TV screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
  15. 15.🟦 Which aspect ratio best fits an old-style monitor? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
  16. 16.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  17. 17.🟦 A photo is 5000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  18. 18.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a type of paper (d) a sound
  19. 19.🟦 Which aspect ratio best fits a widescreen TV? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
  20. 20.Which of these best fits 4:3? (a) a landscape video (b) an older TV screen (c) a square post (d) a tall phone video
  21. 21.🟦 You shrink a 420 × 60 pixel image to half its width and half its height. How many pixels does it have now?
  22. 22.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  23. 23.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
  24. 24.Which of these best fits 4:3? (a) a tall phone video (b) a square post (c) a square sticker (d) an old-style monitor
  25. 25.🟦 An image is 2880 × 1620 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
  26. 26.🟦 An image is 2240 × 1260 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
  27. 27.Which of these best fits 4:3? (a) a square profile picture (b) a laptop film screen (c) a classic tablet screen (d) a square post
  28. 28.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
  29. 29.🟦 An image is 360 × 240 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
  30. 30.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
  31. 31.🟦 You shrink a 240 × 360 pixel image to half its width and half its height. How many pixels does it have now?
  32. 32.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
  33. 33.🟦 An image is 320 pixels wide and 20 pixels tall. How many pixels does it have in all?
  34. 34.Which of these best fits 9:16? (a) an old-style monitor (b) a classic tablet screen (c) a square post (d) a tall phone video
  35. 35.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
  36. 36.🟦 An image is 160 × 120 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
  37. 37.🟦 An image is 390 pixels wide and 20 pixels tall. How many pixels does it have in all?
  38. 38.🟦 An image is 260 pixels wide and 310 pixels tall. How many pixels does it have in all?
  39. 39.🟦 An image is 220 pixels wide and 340 pixels tall. How many pixels does it have in all?
  40. 40.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) louder (c) longer (d) blocky (pixelated)

Answer key

  1. 5400
  2. 3
  3. the number of pixels
  4. squashed or wide
  5. 5
  6. 1:1
  7. 900
  8. 4000
  9. 540
  10. 1:1
  11. 20000
  12. 1500
  13. 240
  14. 4:3
  15. 4:3
  16. 1
  17. 17.5
  18. a tiny dot of colour
  19. 16:9
  20. an older TV screen
  21. 6300
  22. 7.5
  23. 320
  24. an old-style monitor
  25. 16:9
  26. 16:9
  27. a classic tablet screen
  28. 2700
  29. 3:2
  30. 9:16
  31. 21600
  32. 300
  33. 6400
  34. a tall phone video
  35. 9:16
  36. 4:3
  37. 7800
  38. 80600
  39. 74800
  40. blocky (pixelated)

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