Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 153 · 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 320 pixels wide and 250 pixels tall. How many pixels does it have in all?
2. 2.🟦 An image is 240 pixels wide and 150 pixels tall. How many pixels does it have in all?
3. 3.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
4. 4.🟦 The resolution of an image is … (a) the font (b) the number of pixels (c) the paper colour (d) the file name
5. 5.🟦 An image is 630 × 420 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
6. 6.Which of these best fits 16:9? (a) a classic tablet screen (b) a landscape video (c) a square sticker (d) an upright phone screen
7. 7.Which of these best fits 9:16? (a) a classic tablet screen (b) an album cover (c) a phone story clip (d) a widescreen slide
8. 8.Which of these best fits 1:1? (a) a phone story clip (b) a widescreen TV (c) a square profile picture (d) an older TV screen
9. 9.🟦 A photo is 1000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
10. 10.🟦 You shrink an 800 × 320 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
12. 12.🟦 An image is 570 × 380 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
13. 13.🟦 An image is 680 × 510 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
14. 14.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
15. 15.🟦 A 4:3 video frame is 270 pixels tall. How many pixels wide is it?
16. 16.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) more colourful (d) exactly the same
17. 17.🟦 An image is 270 × 180 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
18. 18.Which of these best fits 1:1? (a) a square post (b) an older TV screen (c) a widescreen TV (d) an old-style monitor
19. 19.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
20. 20.🟦 An image is 640 × 360 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
21. 21.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
22. 22.🟦 A 4:3 video frame is 510 pixels tall. How many pixels wide is it?
23. 23.🟦 A photo is 5000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 Which aspect ratio best fits a tall phone video? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
25. 25.🟦 Which aspect ratio best fits a square post? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
26. 26.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
27. 27.🟦 An image is 110 pixels wide and 220 pixels tall. How many pixels does it have in all?
28. 28.🟦 An image is 320 pixels wide and 40 pixels tall. How many pixels does it have in all?
29. 29.🟦 An image is 200 × 150 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
30. 30.🟦 An image is 170 pixels wide and 260 pixels tall. How many pixels does it have in all?
31. 31.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
32. 32.🟦 You shrink a 440 × 80 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 An image is 100 pixels wide and 320 pixels tall. How many pixels does it have in all?
34. 34.🟦 Which aspect ratio best fits an upright phone screen? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
35. 35.🟦 A 4:3 video frame is 630 pixels tall. How many pixels wide is it?
36. 36.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) louder (c) sharper (d) longer
37. 37.🟦 A 4:3 video frame is 600 pixels wide. How many pixels tall is it?
38. 38.🟦 You shrink a 260 × 140 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 An image is 260 pixels wide and 350 pixels tall. How many pixels does it have in all?
40. 40.🟦 A 16:9 frame is … (a) taller than wide (b) a perfect square (c) wider than it is tall (d) round

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