← Pixels and image size lesson New set →

Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 19 · 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.🟦 An image is 80 pixels wide and 230 pixels tall. How many pixels does it have in all?
  2. 2.🟦 A 16:9 video frame is 640 pixels wide. How many pixels tall is it?
  3. 3.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
  4. 4.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  5. 5.🟦 You shrink a 520 × 560 pixel image to half its width and half its height. How many pixels does it have now?
  6. 6.Which of these best fits 4:3? (a) an older TV screen (b) a widescreen TV (c) a tall phone video (d) a widescreen slide
  7. 7.Which of these best fits 9:16? (a) a classic tablet screen (b) an upright phone screen (c) a widescreen TV (d) an old-style monitor
  8. 8.🟦 Which aspect ratio best fits a phone story clip? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
  9. 9.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) more colourful (c) squashed or wide (d) sharper
  10. 10.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
  11. 11.🟦 An image is 110 pixels wide and 80 pixels tall. How many pixels does it have in all?
  12. 12.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
  13. 13.🟦 An image is 110 pixels wide and 250 pixels tall. How many pixels does it have in all?
  14. 14.Which of these best fits 16:9? (a) a widescreen TV (b) an album cover (c) an upright phone screen (d) a classic tablet screen
  15. 15.🟦 A 4:3 video frame is 680 pixels wide. How many pixels tall is it?
  16. 16.🟦 Which aspect ratio best fits a classic tablet screen? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  17. 17.🟦 You shrink a 460 × 800 pixel image to half its width and half its height. How many pixels does it have now?
  18. 18.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  19. 19.🟦 A 16:9 frame is … (a) wider than it is tall (b) round (c) taller than wide (d) a perfect square
  20. 20.🟦 A 4:3 video frame is 270 pixels tall. How many pixels wide is it?
  21. 21.🟦 What is a pixel? (a) a sound (b) a type of paper (c) a font size (d) a tiny dot of colour
  22. 22.🟦 A 16:9 video frame is 450 pixels tall. How many pixels wide is it?
  23. 23.🟦 You shrink a 760 × 40 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) sharper (b) louder (c) longer (d) blocky (pixelated)
  25. 25.🟦 Which aspect ratio best fits an older TV screen? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
  26. 26.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
  27. 27.🟦 You shrink a 260 × 800 pixel image to half its width and half its height. How many pixels does it have now?
  28. 28.🟦 Which aspect ratio best fits a widescreen slide? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
  29. 29.🟦 A 16:9 video frame is 2080 pixels wide. How many pixels tall is it?
  30. 30.🟦 Which aspect ratio best fits a square post? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
  31. 31.🟦 You shrink a 300 × 760 pixel image to half its width and half its height. How many pixels does it have now?
  32. 32.🟦 You shrink a 40 × 800 pixel image to half its width and half its height. How many pixels does it have now?
  33. 33.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  34. 34.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
  35. 35.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
  36. 36.🟦 A 4:3 video frame is 760 pixels wide. How many pixels tall is it?
  37. 37.🟦 A photo is 3000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  38. 38.🟦 An image is 340 pixels wide and 130 pixels tall. How many pixels does it have in all?
  39. 39.🟦 An image is 70 pixels wide and 380 pixels tall. How many pixels does it have in all?
  40. 40.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

Answer key

  1. 18400
  2. 360
  3. 1050
  4. 8
  5. 72800
  6. an older TV screen
  7. an upright phone screen
  8. 9:16
  9. squashed or wide
  10. 1500
  11. 8800
  12. 16:9
  13. 27500
  14. a widescreen TV
  15. 510
  16. 4:3
  17. 92000
  18. 9
  19. wider than it is tall
  20. 360
  21. a tiny dot of colour
  22. 800
  23. 7600
  24. blocky (pixelated)
  25. 4:3
  26. 16:9
  27. 52000
  28. 16:9
  29. 1170
  30. 1:1
  31. 57000
  32. 8000
  33. 24
  34. 600
  35. 180
  36. 570
  37. 10.5
  38. 44200
  39. 26600
  40. 5

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