Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 823 · 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.🟦 A 16:9 video frame is 2560 pixels wide. How many pixels tall is it?
2. 2.🟦 You shrink a 140 × 520 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
4. 4.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
5. 5.🟦 Which aspect ratio best fits a widescreen slide? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
6. 6.🟦 You shrink a 380 × 680 pixel image to half its width and half its height. How many pixels does it have now?
7. 7.Which of these best fits 4:3? (a) a widescreen slide (b) an upright phone screen (c) a square profile picture (d) an old-style monitor
8. 8.🟦 An image is 170 pixels wide and 370 pixels tall. How many pixels does it have in all?
9. 9.🟦 An image is 100 pixels wide and 250 pixels tall. How many pixels does it have in all?
10. 10.🟦 You shrink a 560 × 520 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 Which aspect ratio best fits an album cover? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
12. 12.🟦 You shrink an 80 × 740 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) more colourful (c) sharper (d) exactly the same
14. 14.🟦 A photo is 4000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
15. 15.🟦 What is a pixel? (a) a type of paper (b) a font size (c) a tiny dot of colour (d) a sound
16. 16.Which of these best fits 16:9? (a) an older TV screen (b) a tall phone video (c) a widescreen slide (d) a classic tablet screen
17. 17.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
18. 18.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 Which aspect ratio best fits an upright phone screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
20. 20.🟦 An image is 80 pixels wide and 350 pixels tall. How many pixels does it have in all?
21. 21.🟦 An image is 3360 × 1890 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
22. 22.🟦 A 4:3 video frame is 960 pixels wide. How many pixels tall is it?
23. 23.Which of these best fits 9:16? (a) an upright phone screen (b) a widescreen TV (c) a widescreen slide (d) a classic tablet screen
24. 24.🟦 You shrink an 800 × 680 pixel image to half its width and half its height. How many pixels does it have now?
25. 25.Which of these best fits 1:1? (a) a widescreen TV (b) an older TV screen (c) a square profile picture (d) a widescreen slide
26. 26.🟦 Which aspect ratio best fits a square post? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
27. 27.Which of these best fits 4:3? (a) a square profile picture (b) a widescreen TV (c) a phone story clip (d) an older TV screen
28. 28.🟦 An image is 180 × 120 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
29. 29.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) longer (c) louder (d) sharper
30. 30.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
31. 31.🟦 You shrink a 180 × 300 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.Which of these best fits 1:1? (a) a tall phone video (b) an album cover (c) a widescreen slide (d) an old-style monitor
33. 33.Which of these best fits 1:1? (a) a classic tablet screen (b) a square sticker (c) a laptop film screen (d) a widescreen TV
34. 34.🟦 You shrink a 100 × 60 pixel image to half its width and half its height. How many pixels does it have now?
35. 35.🟦 An image is 600 × 450 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
36. 36.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
37. 37.🟦 An image is 880 × 660 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
38. 38.🟦 A photo is 6000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
40. 40.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?

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