Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 517 · 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.🟦 An image is 210 pixels wide and 60 pixels tall. How many pixels does it have in all?
2. 2.🟦 An image is 120 pixels wide and 340 pixels tall. How many pixels does it have in all?
3. 3.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a sound (d) a type of paper
4. 4.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
5. 5.Which of these best fits 9:16? (a) an album cover (b) a laptop film screen (c) a phone story clip (d) an older TV screen
6. 6.🟦 Which aspect ratio best fits an older TV screen? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
7. 7.🟦 An image is 510 × 340 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
8. 8.🟦 A 16:9 frame is … (a) taller than wide (b) round (c) a perfect square (d) wider than it is tall
9. 9.🟦 A photo is 4000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
10. 10.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) louder (c) sharper (d) longer
11. 11.🟦 You shrink a 220 × 440 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 An image is 70 pixels wide and 80 pixels tall. How many pixels does it have in all?
13. 13.Which of these best fits 16:9? (a) a phone story clip (b) a widescreen slide (c) a square profile picture (d) a tall phone video
14. 14.🟦 A 4:3 video frame is 300 pixels tall. How many pixels wide is it?
15. 15.🟦 A photo is 6000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
16. 16.🟦 You shrink a 160 × 120 pixel image to half its width and half its height. How many pixels does it have now?
17. 17.🟦 A photo is 1000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
19. 19.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
20. 20.🟦 A 16:9 video frame is 1760 pixels wide. How many pixels tall is it?
21. 21.🟦 An image is 380 pixels wide and 240 pixels tall. How many pixels does it have in all?
22. 22.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
23. 23.Which of these best fits 1:1? (a) a landscape video (b) an older TV screen (c) a square sticker (d) a widescreen TV
24. 24.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
25. 25.Which of these best fits 9:16? (a) an upright phone screen (b) an album cover (c) a laptop film screen (d) a widescreen TV
26. 26.🟦 You shrink a 180 × 40 pixel image to half its width and half its height. How many pixels does it have now?
27. 27.🟦 An image is 210 × 140 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
28. 28.🟦 Which aspect ratio best fits a square post? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
29. 29.🟦 A 4:3 video frame is 520 pixels wide. How many pixels tall is it?
30. 30.🟦 A photo is 2000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.Which of these best fits 16:9? (a) a square profile picture (b) a widescreen TV (c) a square sticker (d) an album cover
32. 32.🟦 You shrink an 80 × 260 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 old-style monitor? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
34. 34.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
35. 35.Which of these best fits 1:1? (a) a landscape video (b) an album cover (c) an upright phone screen (d) a classic tablet screen
36. 36.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 You shrink a 420 × 380 pixel image to half its width and half its height. How many pixels does it have now?
38. 38.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
39. 39.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
40. 40.Which of these best fits 16:9? (a) a classic tablet screen (b) an album cover (c) an older TV screen (d) a landscape video

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