Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 981 · 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 6000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
2. 2.🟦 Which aspect ratio best fits a widescreen TV? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
3. 3.🟦 An image is 140 pixels wide and 200 pixels tall. How many pixels does it have in all?
4. 4.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
5. 5.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
6. 6.🟦 An image is 1600 × 900 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
7. 7.🟦 A 16:9 frame is … (a) a perfect square (b) taller than wide (c) round (d) wider than it is tall
8. 8.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
9. 9.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
10. 10.🟦 An image is 80 × 60 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
11. 11.🟦 An image is 330 pixels wide and 30 pixels tall. How many pixels does it have in all?
12. 12.🟦 An image is 90 pixels wide and 100 pixels tall. How many pixels does it have in all?
13. 13.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
14. 14.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
15. 15.🟦 An image is 110 pixels wide and 210 pixels tall. How many pixels does it have in all?
16. 16.🟦 A 4:3 video frame is 90 pixels tall. How many pixels wide is it?
17. 17.Which of these best fits 9:16? (a) an old-style monitor (b) a tall phone video (c) a landscape video (d) a square post
18. 18.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) more colourful (c) exactly the same (d) squashed or wide
19. 19.🟦 What is a pixel? (a) a font size (b) a sound (c) a type of paper (d) a tiny dot of colour
20. 20.Which of these best fits 4:3? (a) a laptop film screen (b) an older TV screen (c) a square profile picture (d) a square sticker
21. 21.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
22. 22.🟦 The resolution of an image is … (a) the number of pixels (b) the font (c) the paper colour (d) the file name
23. 23.🟦 A photo is 1000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 You shrink a 160 × 520 pixel image to half its width and half its height. How many pixels does it have now?
25. 25.🟦 An image is 30 pixels wide and 220 pixels tall. How many pixels does it have in all?
26. 26.🟦 You shrink a 340 × 220 pixel image to half its width and half its height. How many pixels does it have now?
27. 27.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
28. 28.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
29. 29.🟦 You shrink a 480 × 720 pixel image to half its width and half its height. How many pixels does it have now?
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 110 pixels wide and 60 pixels tall. How many pixels does it have in all?
32. 32.🟦 An image is 150 × 150 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
33. 33.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
34. 34.🟦 An image is 40 pixels wide and 20 pixels tall. How many pixels does it have in all?
35. 35.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
36. 36.🟦 An image is 160 × 120 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
37. 37.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
38. 38.🟦 An image is 220 × 220 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
39. 39.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) blocky (pixelated) (c) sharper (d) louder
40. 40.🟦 An image is 160 pixels wide and 50 pixels tall. How many pixels does it have in all?

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