Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 474 · 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 aspect ratio best fits an upright phone screen? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
2. 2.🟦 You shrink a 240 × 220 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
4. 4.Which of these best fits 4:3? (a) a square sticker (b) a phone story clip (c) a widescreen slide (d) an old-style monitor
5. 5.🟦 Which aspect ratio best fits a widescreen slide? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
6. 6.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2
7. 7.🟦 A 16:9 video frame is 2080 pixels wide. How many pixels tall is it?
8. 8.🟦 A 16:9 frame is … (a) wider than it is tall (b) taller than wide (c) round (d) a perfect square
9. 9.Which of these best fits 1:1? (a) an older TV screen (b) a landscape video (c) an upright phone screen (d) a square sticker
10. 10.🟦 You shrink a 780 × 420 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 You shrink a 520 × 60 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 An image is 690 × 460 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
13. 13.🟦 A photo is 4000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
14. 14.🟦 An image is 250 pixels wide and 330 pixels tall. How many pixels does it have in all?
15. 15.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) exactly the same (c) squashed or wide (d) more colourful
16. 16.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 3:2 (d) 1:1
17. 17.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
18. 18.Which of these best fits 4:3? (a) a classic tablet screen (b) a square sticker (c) a laptop film screen (d) an album cover
19. 19.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) louder (c) blocky (pixelated) (d) sharper
20. 20.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
21. 21.🟦 A photo is 6000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
22. 22.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
23. 23.🟦 The resolution of an image is … (a) the file name (b) the paper colour (c) the font (d) the number of pixels
24. 24.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
25. 25.🟦 An image is 2400 × 1350 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
26. 26.🟦 You shrink a 100 × 60 pixel image to half its width and half its height. How many pixels does it have now?
27. 27.🟦 A photo is 4000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.🟦 An image is 320 pixels wide and 190 pixels tall. How many pixels does it have in all?
29. 29.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
30. 30.🟦 A photo is 5000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
32. 32.🟦 Which aspect ratio best fits an old-style monitor? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
33. 33.🟦 You shrink a 200 × 680 pixel image to half its width and half its height. How many pixels does it have now?
34. 34.Which of these best fits 1:1? (a) a square post (b) an older TV screen (c) a widescreen TV (d) a laptop film screen
35. 35.🟦 You shrink a 480 × 100 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 What is a pixel? (a) a tiny dot of colour (b) a font size (c) a sound (d) a type of paper
38. 38.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
39. 39.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
40. 40.🟦 An image is 400 pixels wide and 100 pixels tall. How many pixels does it have in all?

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