Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 705 · 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 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
2. 2.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
3. 3.🟦 A 16:9 video frame is 2400 pixels wide. How many pixels tall is it?
4. 4.🟦 An image is 360 pixels wide and 50 pixels tall. How many pixels does it have in all?
5. 5.Which of these best fits 16:9? (a) an older TV screen (b) a square post (c) a widescreen TV (d) an old-style monitor
6. 6.Which of these best fits 4:3? (a) a widescreen slide (b) a landscape video (c) a classic tablet screen (d) a square sticker
7. 7.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
8. 8.🟦 You shrink an 80 × 500 pixel image to half its width and half its height. How many pixels does it have now?
9. 9.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
10. 10.🟦 An image is 190 pixels wide and 240 pixels tall. How many pixels does it have in all?
11. 11.🟦 Which aspect ratio best fits a square profile picture? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
12. 12.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) sharper (c) exactly the same (d) squashed or wide
13. 13.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
14. 14.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
15. 15.🟦 An image is 290 pixels wide and 60 pixels tall. How many pixels does it have in all?
16. 16.🟦 A 16:9 frame is … (a) round (b) a perfect square (c) wider than it is tall (d) taller than wide
17. 17.🟦 Which aspect ratio best fits a landscape video? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
18. 18.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
20. 20.Which of these best fits 16:9? (a) an older TV screen (b) a widescreen slide (c) an upright phone screen (d) a phone story clip
21. 21.🟦 An image is 70 pixels wide and 370 pixels tall. How many pixels does it have in all?
22. 22.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
23. 23.🟦 An image is 160 × 160 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
24. 24.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
25. 25.Which of these best fits 16:9? (a) an album cover (b) a tall phone video (c) an old-style monitor (d) a landscape video
26. 26.🟦 An image is 350 pixels wide and 330 pixels tall. How many pixels does it have in all?
27. 27.🟦 You shrink a 280 × 360 pixel image to half its width and half its height. How many pixels does it have now?
28. 28.🟦 You shrink a 260 × 160 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.Which of these best fits 9:16? (a) an upright phone screen (b) a square sticker (c) a classic tablet screen (d) a square profile picture
30. 30.🟦 A 16:9 video frame is 800 pixels wide. How many pixels tall is it?
31. 31.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) louder (c) blocky (pixelated) (d) sharper
32. 32.🟦 Which aspect ratio best fits a square sticker? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
33. 33.🟦 You shrink a 40 × 760 pixel image to half its width and half its height. How many pixels does it have now?
34. 34.🟦 An image is 480 × 270 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
35. 35.🟦 An image is 570 × 380 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 4:3 (d) 16:9
36. 36.Which of these best fits 1:1? (a) a landscape video (b) an album cover (c) a widescreen slide (d) an old-style monitor
37. 37.🟦 An image is 30 × 30 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
38. 38.🟦 A 16:9 video frame is 3840 pixels wide. How many pixels tall is it?
39. 39.🟦 An image is 20 pixels wide and 240 pixels tall. How many pixels does it have in all?
40. 40.🟦 You shrink a 420 × 100 pixel image to half its width and half its height. How many pixels does it have now?

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