Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 814 · 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 photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
2. 2.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
3. 3.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
4. 4.🟦 Which aspect ratio best fits an older TV screen? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
5. 5.🟦 A photo is 5000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
6. 6.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) more colourful (c) sharper (d) squashed or wide
7. 7.🟦 A 16:9 video frame is 1170 pixels tall. How many pixels wide is it?
8. 8.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) longer (d) louder
9. 9.🟦 An image is 600 × 400 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
10. 10.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
11. 11.Which of these best fits 4:3? (a) an old-style monitor (b) a square profile picture (c) a widescreen TV (d) an upright phone screen
12. 12.🟦 The resolution of an image is … (a) the file name (b) the font (c) the paper colour (d) the number of pixels
13. 13.🟦 A 4:3 video frame is 560 pixels wide. How many pixels tall is it?
14. 14.🟦 You shrink an 80 × 100 pixel image to half its width and half its height. How many pixels does it have now?
15. 15.🟦 A photo is 4000 × 1500 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 7-inch-wide print?
17. 17.🟦 A photo is 2000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 An image is 50 pixels wide and 100 pixels tall. How many pixels does it have in all?
19. 19.🟦 You shrink a 700 × 800 pixel image to half its width and half its height. How many pixels does it have now?
20. 20.Which of these best fits 4:3? (a) a widescreen TV (b) an upright phone screen (c) an older TV screen (d) a tall phone video
21. 21.Which of these best fits 9:16? (a) a classic tablet screen (b) a widescreen slide (c) an upright phone screen (d) a square profile picture
22. 22.🟦 You shrink a 100 × 180 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 An image is 3040 × 1710 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
24. 24.🟦 A 16:9 frame is … (a) a perfect square (b) wider than it is tall (c) round (d) taller than wide
25. 25.Which of these best fits 16:9? (a) a widescreen slide (b) a phone story clip (c) a square post (d) an old-style monitor
26. 26.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
27. 27.Which of these best fits 16:9? (a) a square sticker (b) a laptop film screen (c) a tall phone video (d) a phone story clip
28. 28.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
29. 29.🟦 A 4:3 video frame is 120 pixels tall. How many pixels wide is it?
30. 30.🟦 An image is 230 × 230 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
31. 31.🟦 You shrink a 120 × 600 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.🟦 You shrink a 640 × 280 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
34. 34.🟦 A 4:3 video frame is 450 pixels tall. How many pixels wide is it?
35. 35.🟦 You shrink a 260 × 640 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 You shrink a 780 × 120 pixel image to half its width and half its height. How many pixels does it have now?
37. 37.Which of these best fits 4:3? (a) a landscape video (b) a phone story clip (c) a classic tablet screen (d) a widescreen TV
38. 38.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.🟦 An image is 250 pixels wide and 370 pixels tall. How many pixels does it have in all?
40. 40.🟦 Which aspect ratio best fits a tall phone video? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9

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