← Pixels and image size lesson New set →

Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 128 · 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) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
  2. 2.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
  3. 3.🟦 You shrink a 140 × 600 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 album cover (b) a square post (c) a square profile picture (d) a laptop film screen
  5. 5.🟦 Which aspect ratio best fits a landscape video? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
  6. 6.Which of these best fits 9:16? (a) a square sticker (b) a square post (c) a landscape video (d) a phone story clip
  7. 7.🟦 What is a pixel? (a) a font size (b) a tiny dot of colour (c) a sound (d) a type of paper
  8. 8.🟦 Which aspect ratio best fits a square post? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
  9. 9.🟦 A photo is 5000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  10. 10.🟦 You shrink a 100 × 300 pixel image to half its width and half its height. How many pixels does it have now?
  11. 11.🟦 An image is 800 × 600 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
  12. 12.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
  13. 13.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) sharper (c) squashed or wide (d) exactly the same
  14. 14.🟦 You shrink a 240 × 560 pixel image to half its width and half its height. How many pixels does it have now?
  15. 15.🟦 An image is 80 pixels wide and 40 pixels tall. How many pixels does it have in all?
  16. 16.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  17. 17.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) longer (c) louder (d) blocky (pixelated)
  18. 18.🟦 An image is 180 pixels wide and 160 pixels tall. How many pixels does it have in all?
  19. 19.🟦 You shrink a 380 × 460 pixel image to half its width and half its height. How many pixels does it have now?
  20. 20.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
  21. 21.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
  22. 22.🟦 A 16:9 video frame is 1980 pixels tall. How many pixels wide is it?
  23. 23.🟦 An image is 180 × 180 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
  24. 24.🟦 An image is 920 × 690 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
  25. 25.🟦 An image is 310 pixels wide and 170 pixels tall. How many pixels does it have in all?
  26. 26.Which of these best fits 16:9? (a) a widescreen slide (b) an older TV screen (c) a square post (d) a classic tablet screen
  27. 27.Which of these best fits 4:3? (a) an old-style monitor (b) a tall phone video (c) an upright phone screen (d) a widescreen TV
  28. 28.🟦 An image is 1760 × 990 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
  29. 29.🟦 An image is 370 pixels wide and 390 pixels tall. How many pixels does it have in all?
  30. 30.🟦 An image is 390 × 260 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
  31. 31.🟦 You shrink a 320 × 120 pixel image to half its width and half its height. How many pixels does it have now?
  32. 32.🟦 A 4:3 video frame is 720 pixels wide. How many pixels tall is it?
  33. 33.🟦 A photo is 3000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
  34. 34.🟦 A 16:9 frame is … (a) round (b) taller than wide (c) a perfect square (d) wider than it is tall
  35. 35.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
  36. 36.Which of these best fits 9:16? (a) an album cover (b) a widescreen TV (c) a widescreen slide (d) an upright phone screen
  37. 37.Which of these best fits 9:16? (a) a square sticker (b) a tall phone video (c) a square profile picture (d) an older TV screen
  38. 38.🟦 An image is 130 × 130 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
  39. 39.🟦 An image is 220 × 220 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 4:3 (d) 16:9
  40. 40.🟦 You shrink an 800 × 760 pixel image to half its width and half its height. How many pixels does it have now?

Answer key

  1. 16:9
  2. 2700
  3. 21000
  4. a laptop film screen
  5. 16:9
  6. a phone story clip
  7. a tiny dot of colour
  8. 1:1
  9. 12.5
  10. 7500
  11. 4:3
  12. 9:16
  13. squashed or wide
  14. 33600
  15. 3200
  16. 2
  17. blocky (pixelated)
  18. 28800
  19. 43700
  20. 3000
  21. 1350
  22. 3520
  23. 1:1
  24. 4:3
  25. 52700
  26. a widescreen slide
  27. an old-style monitor
  28. 16:9
  29. 144300
  30. 3:2
  31. 9600
  32. 540
  33. 10.5
  34. wider than it is tall
  35. 1:1
  36. an upright phone screen
  37. a tall phone video
  38. 1:1
  39. 1:1
  40. 152000

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