Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 99 · 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 album cover? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
2. 2.🟦 An image is 180 pixels wide and 180 pixels tall. How many pixels does it have in all?
3. 3.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
4. 4.🟦 The resolution of an image is … (a) the font (b) the file name (c) the number of pixels (d) the paper colour
5. 5.🟦 You shrink a 220 × 520 pixel image to half its width and half its height. How many pixels does it have now?
6. 6.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
7. 7.Which of these best fits 9:16? (a) an album cover (b) a tall phone video (c) an old-style monitor (d) a landscape video
8. 8.🟦 An image is 40 pixels wide and 120 pixels tall. How many pixels does it have in all?
9. 9.🟦 An image is 390 pixels wide and 150 pixels tall. How many pixels does it have in all?
10. 10.Which of these best fits 9:16? (a) a widescreen TV (b) an upright phone screen (c) a square sticker (d) a square post
11. 11.🟦 A 16:9 frame is … (a) round (b) a perfect square (c) taller than wide (d) wider than it is tall
12. 12.🟦 You shrink a 220 × 240 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 A 16:9 video frame is 1760 pixels wide. How many pixels tall is it?
14. 14.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
15. 15.🟦 An image is 110 × 110 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
16. 16.🟦 A photo is 4000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
17. 17.🟦 An image is 880 × 660 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
18. 18.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 9:16 (c) 4:3 (d) 16:9
20. 20.🟦 An image is 200 pixels wide and 60 pixels tall. How many pixels does it have in all?
21. 21.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) exactly the same (c) sharper (d) more colourful
22. 22.🟦 An image is 50 × 50 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
23. 23.🟦 A photo is 3000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 A 4:3 video frame is 200 pixels wide. How many pixels tall is it?
25. 25.🟦 An image is 440 × 330 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
26. 26.Which of these best fits 16:9? (a) a laptop film screen (b) a square sticker (c) a square post (d) a classic tablet screen
27. 27.🟦 An image is 110 pixels wide and 100 pixels tall. How many pixels does it have in all?
28. 28.🟦 You shrink a 240 × 580 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 An image is 200 × 150 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
30. 30.🟦 A 16:9 video frame is 1530 pixels tall. How many pixels wide is it?
31. 31.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
32. 32.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) blocky (pixelated) (c) longer (d) louder
33. 33.Which of these best fits 1:1? (a) a square post (b) a laptop film screen (c) an upright phone screen (d) a widescreen slide
34. 34.Which of these best fits 4:3? (a) a classic tablet screen (b) a phone story clip (c) a square sticker (d) a landscape video
35. 35.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
36. 36.Which of these best fits 9:16? (a) a square sticker (b) a classic tablet screen (c) a laptop film screen (d) a phone story clip
37. 37.🟦 Which aspect ratio best fits a square profile picture? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
38. 38.🟦 A 16:9 video frame is 270 pixels tall. How many pixels wide is it?
39. 39.🟦 A 16:9 video frame is 3200 pixels wide. How many pixels tall is it?
40. 40.🟦 You shrink a 300 × 800 pixel image to half its width and half its height. How many pixels does it have now?

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