Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 378 · 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 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
2. 2.Which of these best fits 9:16? (a) an old-style monitor (b) an album cover (c) a square sticker (d) a tall phone video
3. 3.🟦 A 16:9 video frame is 1440 pixels tall. How many pixels wide is it?
4. 4.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) longer (c) blocky (pixelated) (d) louder
5. 5.🟦 A 16:9 frame is … (a) taller than wide (b) wider than it is tall (c) round (d) a perfect square
6. 6.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
7. 7.🟦 You shrink a 580 × 120 pixel image to half its width and half its height. How many pixels does it have now?
8. 8.Which of these best fits 1:1? (a) a phone story clip (b) a square sticker (c) a laptop film screen (d) a widescreen slide
9. 9.🟦 An image is 80 pixels wide and 140 pixels tall. How many pixels does it have in all?
10. 10.Which of these best fits 4:3? (a) an old-style monitor (b) a landscape video (c) an upright phone screen (d) a square sticker
11. 11.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
12. 12.🟦 The resolution of an image is … (a) the font (b) the paper colour (c) the file name (d) the number of pixels
13. 13.Which of these best fits 16:9? (a) an album cover (b) an older TV screen (c) a widescreen slide (d) a square sticker
14. 14.🟦 A 4:3 video frame is 400 pixels wide. How many pixels tall is it?
15. 15.🟦 An image is 80 × 60 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 1:1 (d) 16:9
16. 16.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
17. 17.🟦 An image is 360 × 270 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
18. 18.🟦 An image is 150 × 100 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
19. 19.🟦 You shrink a 780 × 80 pixel image to half its width and half its height. How many pixels does it have now?
20. 20.🟦 A 16:9 video frame is 1710 pixels tall. How many pixels wide is it?
21. 21.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
22. 22.🟦 What is a pixel? (a) a sound (b) a tiny dot of colour (c) a type of paper (d) a font size
23. 23.Which of these best fits 4:3? (a) an upright phone screen (b) an older TV screen (c) a widescreen TV (d) a widescreen slide
24. 24.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
25. 25.🟦 You shrink a 60 × 320 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) sharper (d) more colourful
27. 27.🟦 Which aspect ratio best fits an old-style monitor? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
28. 28.Which of these best fits 16:9? (a) a square profile picture (b) a landscape video (c) a square sticker (d) a classic tablet screen
29. 29.🟦 Which aspect ratio best fits a square sticker? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
30. 30.🟦 An image is 160 pixels wide and 30 pixels tall. How many pixels does it have in all?
31. 31.🟦 A 4:3 video frame is 320 pixels wide. How many pixels tall is it?
32. 32.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
33. 33.🟦 An image is 480 × 270 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 4:3 (d) 16:9
34. 34.🟦 Which aspect ratio best fits a widescreen slide? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
35. 35.Which of these best fits 9:16? (a) a landscape video (b) a widescreen TV (c) a square sticker (d) a phone story clip
36. 36.🟦 An image is 370 pixels wide and 130 pixels tall. How many pixels does it have in all?
37. 37.🟦 You shrink a 580 × 80 pixel image to half its width and half its height. How many pixels does it have now?
38. 38.🟦 An image is 520 × 390 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
39. 39.Which of these best fits 16:9? (a) a laptop film screen (b) a square sticker (c) a tall phone video (d) an older TV screen
40. 40.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?

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