← Pixels and image size lesson New set →

Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 989 · 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.🟦 A 4:3 video frame is 640 pixels wide. How many pixels tall is it?
  2. 2.🟦 A 16:9 video frame is 3840 pixels wide. How many pixels tall is it?
  3. 3.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  4. 4.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
  5. 5.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) exactly the same (d) more colourful
  6. 6.🟦 An image is 350 pixels wide and 20 pixels tall. How many pixels does it have in all?
  7. 7.Which of these best fits 16:9? (a) an album cover (b) an older TV screen (c) a widescreen slide (d) a square profile picture
  8. 8.🟦 What is a pixel? (a) a font size (b) a tiny dot of colour (c) a type of paper (d) a sound
  9. 9.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  10. 10.🟦 An image is 960 × 720 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
  11. 11.🟦 You shrink a 40 × 40 pixel image to half its width and half its height. How many pixels does it have now?
  12. 12.🟦 An image is 400 pixels wide and 270 pixels tall. How many pixels does it have in all?
  13. 13.🟦 You shrink a 440 × 560 pixel image to half its width and half its height. How many pixels does it have now?
  14. 14.Which of these best fits 4:3? (a) a classic tablet screen (b) a square post (c) a landscape video (d) an upright phone screen
  15. 15.Which of these best fits 9:16? (a) an older TV screen (b) an old-style monitor (c) a classic tablet screen (d) an upright phone screen
  16. 16.🟦 A photo is 3000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  17. 17.🟦 An image is 390 pixels wide and 320 pixels tall. How many pixels does it have in all?
  18. 18.🟦 A 16:9 frame is … (a) round (b) wider than it is tall (c) a perfect square (d) taller than wide
  19. 19.🟦 An image is 400 × 300 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
  20. 20.Which of these best fits 16:9? (a) a classic tablet screen (b) a square sticker (c) a widescreen TV (d) a phone story clip
  21. 21.Which of these best fits 4:3? (a) a phone story clip (b) an old-style monitor (c) a tall phone video (d) a square profile picture
  22. 22.🟦 You shrink an 80 × 280 pixel image to half its width and half its height. How many pixels does it have now?
  23. 23.🟦 Which aspect ratio best fits a tall phone video? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
  24. 24.🟦 An image is 300 × 200 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
  25. 25.🟦 An image is 140 pixels wide and 60 pixels tall. How many pixels does it have in all?
  26. 26.Which of these best fits 1:1? (a) a widescreen TV (b) an upright phone screen (c) a phone story clip (d) a square sticker
  27. 27.🟦 You shrink a 560 × 40 pixel image to half its width and half its height. How many pixels does it have now?
  28. 28.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
  29. 29.🟦 Which aspect ratio best fits a square profile picture? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
  30. 30.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  31. 31.🟦 A photo is 5000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  32. 32.🟦 You shrink a 60 × 200 pixel image to half its width and half its height. How many pixels does it have now?
  33. 33.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
  34. 34.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
  35. 35.🟦 You shrink a 120 × 80 pixel image to half its width and half its height. How many pixels does it have now?
  36. 36.🟦 A 16:9 video frame is 1600 pixels wide. How many pixels tall is it?
  37. 37.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  38. 38.🟦 A photo is 6000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  39. 39.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) longer (c) louder (d) sharper
  40. 40.🟦 You shrink a 180 × 700 pixel image to half its width and half its height. How many pixels does it have now?

Answer key

  1. 480
  2. 2160
  3. 4
  4. 4:3
  5. squashed or wide
  6. 7000
  7. a widescreen slide
  8. a tiny dot of colour
  9. 900
  10. 4:3
  11. 400
  12. 108000
  13. 61600
  14. a classic tablet screen
  15. an upright phone screen
  16. 3
  17. 124800
  18. wider than it is tall
  19. 4:3
  20. a widescreen TV
  21. an old-style monitor
  22. 5600
  23. 9:16
  24. 3:2
  25. 8400
  26. a square sticker
  27. 5600
  28. 1200
  29. 1:1
  30. 8
  31. 15
  32. 3000
  33. 1050
  34. 450
  35. 2400
  36. 900
  37. 9
  38. 9
  39. blocky (pixelated)
  40. 31500

Free animation and design lessons, practice and worksheets at talentjr.in/animation-for-kids