Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 418 · 40 questions

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.

1. 1.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
2. 2.🟦 The resolution of an image is … (a) the number of pixels (b) the font (c) the paper colour (d) the file name
3. 3.🟦 A 16:9 frame is … (a) taller than wide (b) round (c) wider than it is tall (d) a perfect square
4. 4.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) louder (c) sharper (d) blocky (pixelated)
5. 5.🟦 Which aspect ratio best fits a phone story clip? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
6. 6.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
7. 7.🟦 An image is 30 pixels wide and 260 pixels tall. How many pixels does it have in all?
8. 8.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
9. 9.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
10. 10.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
11. 11.🟦 An image is 2400 × 1350 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
12. 12.🟦 You shrink a 600 × 140 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 An image is 350 pixels wide and 260 pixels tall. How many pixels does it have in all?
14. 14.🟦 Which aspect ratio best fits an older TV screen? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
15. 15.🟦 A photo is 5000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
16. 16.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
17. 17.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 An image is 390 pixels wide and 260 pixels tall. How many pixels does it have in all?
19. 19.Which of these best fits 16:9? (a) an old-style monitor (b) a square profile picture (c) a widescreen slide (d) a square sticker
20. 20.🟦 An image is 640 × 480 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
21. 21.🟦 You shrink a 600 × 780 pixel image to half its width and half its height. How many pixels does it have now?
22. 22.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
23. 23.Which of these best fits 9:16? (a) a widescreen slide (b) a phone story clip (c) a square profile picture (d) an old-style monitor
24. 24.Which of these best fits 1:1? (a) a laptop film screen (b) a phone story clip (c) a widescreen slide (d) an album cover
25. 25.🟦 A 16:9 video frame is 1800 pixels tall. How many pixels wide is it?
26. 26.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
27. 27.🟦 A 16:9 video frame is 2160 pixels tall. How many pixels wide is it?
28. 28.Which of these best fits 4:3? (a) a landscape video (b) an album cover (c) a classic tablet screen (d) a tall phone video
29. 29.🟦 An image is 370 pixels wide and 230 pixels tall. How many pixels does it have in all?
30. 30.🟦 Which aspect ratio best fits a square sticker? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
31. 31.🟦 An image is 250 pixels wide and 360 pixels tall. How many pixels does it have in all?
32. 32.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
33. 33.🟦 Which aspect ratio best fits a tall phone video? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
34. 34.🟦 You shrink a 320 × 720 pixel image to half its width and half its height. How many pixels does it have now?
35. 35.Which of these best fits 9:16? (a) a tall phone video (b) a laptop film screen (c) a classic tablet screen (d) an older TV screen
36. 36.🟦 You shrink a 420 × 80 pixel image to half its width and half its height. How many pixels does it have now?
37. 37.🟦 A photo is 6000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
38. 38.🟦 An image is 2560 × 1440 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
39. 39.🟦 An image is 240 × 160 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
40. 40.Which of these best fits 16:9? (a) an album cover (b) a tall phone video (c) a widescreen TV (d) a square profile picture

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