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Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 923 · 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.🟦 Which aspect ratio best fits a laptop film screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
  2. 2.🟦 A 4:3 video frame is 120 pixels tall. How many pixels wide is it?
  3. 3.🟦 You shrink a 580 × 80 pixel image to half its width and half its height. How many pixels does it have now?
  4. 4.Which of these best fits 16:9? (a) an old-style monitor (b) a phone story clip (c) a square sticker (d) a landscape video
  5. 5.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) louder (c) longer (d) blocky (pixelated)
  6. 6.🟦 A 16:9 frame is … (a) a perfect square (b) wider than it is tall (c) round (d) taller than wide
  7. 7.🟦 An image is 90 pixels wide and 400 pixels tall. How many pixels does it have in all?
  8. 8.🟦 An image is 140 pixels wide and 150 pixels tall. How many pixels does it have in all?
  9. 9.🟦 You shrink a 640 × 100 pixel image to half its width and half its height. How many pixels does it have now?
  10. 10.🟦 An image is 230 pixels wide and 60 pixels tall. How many pixels does it have in all?
  11. 11.🟦 An image is 90 pixels wide and 270 pixels tall. How many pixels does it have in all?
  12. 12.🟦 An image is 340 pixels wide and 360 pixels tall. How many pixels does it have in all?
  13. 13.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
  14. 14.🟦 An image is 1920 × 1080 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
  15. 15.Which of these best fits 9:16? (a) an older TV screen (b) a widescreen TV (c) a tall phone video (d) a landscape video
  16. 16.🟦 You shrink a 780 × 560 pixel image to half its width and half its height. How many pixels does it have now?
  17. 17.Which of these best fits 9:16? (a) an older TV screen (b) a phone story clip (c) a landscape video (d) an album cover
  18. 18.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
  19. 19.🟦 An image is 100 pixels wide and 390 pixels tall. How many pixels does it have in all?
  20. 20.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  21. 21.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  22. 22.Which of these best fits 1:1? (a) an older TV screen (b) a tall phone video (c) a laptop film screen (d) a square post
  23. 23.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
  24. 24.🟦 A 4:3 video frame is 450 pixels tall. How many pixels wide is it?
  25. 25.🟦 What is a pixel? (a) a font size (b) a sound (c) a tiny dot of colour (d) a type of paper
  26. 26.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  27. 27.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) squashed or wide (c) sharper (d) exactly the same
  28. 28.🟦 An image is 170 pixels wide and 370 pixels tall. How many pixels does it have in all?
  29. 29.🟦 An image is 290 pixels wide and 70 pixels tall. How many pixels does it have in all?
  30. 30.Which of these best fits 1:1? (a) an old-style monitor (b) a widescreen TV (c) a tall phone video (d) an album cover
  31. 31.🟦 A photo is 5000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  32. 32.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  33. 33.Which of these best fits 1:1? (a) a landscape video (b) a laptop film screen (c) a square profile picture (d) a widescreen TV
  34. 34.🟦 Which aspect ratio best fits a tall phone video? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
  35. 35.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
  36. 36.🟦 An image is 520 × 390 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 4:3 (d) 16:9
  37. 37.🟦 A photo is 5000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  38. 38.🟦 An image is 240 pixels wide and 80 pixels tall. How many pixels does it have in all?
  39. 39.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  40. 40.🟦 You shrink a 640 × 40 pixel image to half its width and half its height. How many pixels does it have now?

Answer key

  1. 16:9
  2. 160
  3. 11600
  4. a landscape video
  5. blocky (pixelated)
  6. wider than it is tall
  7. 36000
  8. 21000
  9. 16000
  10. 13800
  11. 24300
  12. 122400
  13. 16:9
  14. 16:9
  15. a tall phone video
  16. 109200
  17. a phone story clip
  18. 9:16
  19. 39000
  20. 4
  21. 4.5
  22. a square post
  23. 4:3
  24. 600
  25. a tiny dot of colour
  26. 3
  27. squashed or wide
  28. 62900
  29. 20300
  30. an album cover
  31. 12.5
  32. 5
  33. a square profile picture
  34. 9:16
  35. 750
  36. 4:3
  37. 17.5
  38. 19200
  39. 8
  40. 6400

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