Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 178 · 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 150 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
2. 2.🟦 An image is 40 pixels wide and 260 pixels tall. How many pixels does it have in all?
3. 3.🟦 A 16:9 video frame is 1260 pixels tall. How many pixels wide is it?
4. 4.🟦 A photo is 4000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
5. 5.🟦 An image is 210 × 210 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
6. 6.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) sharper (c) louder (d) blocky (pixelated)
7. 7.🟦 An image is 80 pixels wide and 320 pixels tall. How many pixels does it have in all?
8. 8.🟦 An image is 110 pixels wide and 290 pixels tall. How many pixels does it have in all?
9. 9.Which of these best fits 4:3? (a) a laptop film screen (b) a widescreen TV (c) an old-style monitor (d) a square post
10. 10.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
11. 11.Which of these best fits 1:1? (a) a phone story clip (b) an older TV screen (c) a square profile picture (d) a classic tablet screen
12. 12.🟦 An image is 1120 × 630 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
13. 13.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
14. 14.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) squashed or wide (c) sharper (d) exactly the same
15. 15.🟦 An image is 210 pixels wide and 270 pixels tall. How many pixels does it have in all?
16. 16.🟦 Which aspect ratio best fits an upright phone screen? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
17. 17.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
18. 18.🟦 A photo is 6000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 An image is 150 pixels wide and 160 pixels tall. How many pixels does it have in all?
20. 20.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
21. 21.🟦 A 4:3 video frame is 630 pixels tall. How many pixels wide is it?
22. 22.🟦 A 4:3 video frame is 600 pixels tall. How many pixels wide is it?
23. 23.Which of these best fits 16:9? (a) an album cover (b) an old-style monitor (c) an upright phone screen (d) a widescreen TV
24. 24.Which of these best fits 16:9? (a) an old-style monitor (b) a classic tablet screen (c) a tall phone video (d) a landscape video
25. 25.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
26. 26.🟦 An image is 80 × 80 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
27. 27.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
28. 28.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
29. 29.🟦 A 4:3 video frame is 560 pixels wide. How many pixels tall is it?
30. 30.🟦 You shrink a 760 × 140 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
32. 32.🟦 A photo is 6000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
33. 33.Which of these best fits 4:3? (a) a tall phone video (b) an upright phone screen (c) a widescreen TV (d) a classic tablet screen
34. 34.Which of these best fits 1:1? (a) an album cover (b) a classic tablet screen (c) an older TV screen (d) an old-style monitor
35. 35.🟦 You shrink a 740 × 760 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 Which aspect ratio best fits a widescreen slide? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
37. 37.Which of these best fits 1:1? (a) a tall phone video (b) a landscape video (c) a square post (d) a laptop film screen
38. 38.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
39. 39.Which of these best fits 16:9? (a) a widescreen slide (b) an older TV screen (c) a square post (d) a square sticker
40. 40.🟦 An image is 300 pixels wide and 230 pixels tall. How many pixels does it have in all?

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