Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 480 · 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.Which of these best fits 1:1? (a) a phone story clip (b) a widescreen TV (c) a classic tablet screen (d) a square post
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.Which of these best fits 9:16? (a) a laptop film screen (b) a classic tablet screen (c) a tall phone video (d) a square sticker
4. 4.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) exactly the same (c) squashed or wide (d) more colourful
5. 5.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
6. 6.🟦 A 16:9 video frame is 3200 pixels wide. How many pixels tall is it?
7. 7.🟦 You shrink a 480 × 640 pixel image to half its width and half its height. How many pixels does it have now?
8. 8.Which of these best fits 16:9? (a) an album cover (b) a landscape video (c) a classic tablet screen (d) a square post
9. 9.🟦 A photo is 5000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
10. 10.Which of these best fits 16:9? (a) a laptop film screen (b) an old-style monitor (c) a square profile picture (d) a phone story clip
11. 11.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
12. 12.🟦 You shrink a 700 × 380 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 A 4:3 video frame is 640 pixels wide. How many pixels tall is it?
14. 14.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
15. 15.🟦 The resolution of an image is … (a) the paper colour (b) the number of pixels (c) the file name (d) the font
16. 16.🟦 Which aspect ratio best fits an older TV screen? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
17. 17.🟦 A 16:9 video frame is 1440 pixels tall. How many pixels wide is it?
18. 18.🟦 You shrink a 440 × 440 pixel image to half its width and half its height. How many pixels does it have now?
19. 19.🟦 An image is 20 pixels wide and 370 pixels tall. How many pixels does it have in all?
20. 20.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
21. 21.🟦 A photo is 5000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
22. 22.Which of these best fits 1:1? (a) a laptop film screen (b) a square sticker (c) an old-style monitor (d) an older TV screen
23. 23.🟦 A 4:3 video frame is 300 pixels tall. How many pixels wide is it?
24. 24.🟦 A 4:3 video frame is 840 pixels wide. How many pixels tall is it?
25. 25.🟦 You shrink a 280 × 100 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
27. 27.🟦 A 4:3 video frame is 630 pixels tall. How many pixels wide is it?
28. 28.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) round (d) a perfect square
29. 29.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
30. 30.🟦 A photo is 4000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.🟦 A photo is 3000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
32. 32.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
33. 33.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
34. 34.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
35. 35.🟦 A photo is 2000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
36. 36.🟦 Which aspect ratio best fits an album cover? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
37. 37.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
38. 38.Which of these best fits 9:16? (a) an album cover (b) a widescreen TV (c) a square sticker (d) an upright phone screen
39. 39.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
40. 40.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) sharper (c) louder (d) blocky (pixelated)

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