Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 782 · 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.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
2. 2.Which of these best fits 9:16? (a) a widescreen TV (b) a square sticker (c) a phone story clip (d) a classic tablet screen
3. 3.🟦 The resolution of an image is … (a) the paper colour (b) the file name (c) the font (d) the number of pixels
4. 4.🟦 Which aspect ratio best fits an old-style monitor? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
5. 5.🟦 A photo is 4000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
6. 6.🟦 You shrink a 300 × 180 pixel image to half its width and half its height. How many pixels does it have now?
7. 7.Which of these best fits 4:3? (a) a widescreen slide (b) an older TV screen (c) a landscape video (d) a square profile picture
8. 8.🟦 An image is 130 pixels wide and 300 pixels tall. How many pixels does it have in all?
9. 9.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
10. 10.Which of these best fits 16:9? (a) a square post (b) a widescreen slide (c) an upright phone screen (d) a tall phone video
11. 11.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) longer (d) louder
12. 12.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
13. 13.🟦 An image is 120 × 80 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
14. 14.Which of these best fits 1:1? (a) a laptop film screen (b) a square post (c) a landscape video (d) an upright phone screen
15. 15.🟦 What is a pixel? (a) a font size (b) a sound (c) a tiny dot of colour (d) a type of paper
16. 16.🟦 A photo is 6000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
17. 17.Which of these best fits 16:9? (a) a laptop film screen (b) a square sticker (c) an old-style monitor (d) an older TV screen
18. 18.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
19. 19.Which of these best fits 4:3? (a) an album cover (b) a square profile picture (c) a classic tablet screen (d) a square post
20. 20.🟦 A 4:3 video frame is 510 pixels tall. How many pixels wide is it?
21. 21.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) more colourful (c) sharper (d) exactly the same
22. 22.🟦 An image is 640 × 480 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
23. 23.🟦 Which aspect ratio best fits a square post? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
24. 24.🟦 Which aspect ratio best fits a phone story clip? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
25. 25.🟦 A 16:9 video frame is 1280 pixels wide. How many pixels tall is it?
26. 26.🟦 A 4:3 video frame is 640 pixels wide. How many pixels tall is it?
27. 27.Which of these best fits 1:1? (a) an upright phone screen (b) a square sticker (c) an older TV screen (d) a tall phone video
28. 28.🟦 An image is 160 × 160 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
30. 30.🟦 An image is 570 × 380 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
31. 31.🟦 An image is 90 pixels wide and 280 pixels tall. How many pixels does it have in all?
32. 32.🟦 You shrink a 400 × 740 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 An image is 30 pixels wide and 320 pixels tall. How many pixels does it have in all?
34. 34.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
35. 35.🟦 Which aspect ratio best fits a square sticker? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
36. 36.🟦 Which aspect ratio best fits a classic tablet screen? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
37. 37.🟦 An image is 280 pixels wide and 290 pixels tall. How many pixels does it have in all?
38. 38.🟦 Which aspect ratio best fits a widescreen slide? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
39. 39.🟦 A 16:9 video frame is 360 pixels tall. How many pixels wide is it?
40. 40.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?

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