Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 136 · 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 4:3 video frame is 390 pixels tall. How many pixels wide is it?
2. 2.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
3. 3.🟦 What is a pixel? (a) a sound (b) a type of paper (c) a tiny dot of colour (d) a font size
4. 4.Which of these best fits 9:16? (a) a square sticker (b) a square post (c) a laptop film screen (d) a phone story clip
5. 5.🟦 A photo is 4000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
6. 6.🟦 A 16:9 frame is … (a) a perfect square (b) wider than it is tall (c) taller than wide (d) round
7. 7.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
8. 8.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
9. 9.Which of these best fits 4:3? (a) an older TV screen (b) a phone story clip (c) a tall phone video (d) a widescreen slide
10. 10.🟦 Which aspect ratio best fits a phone story clip? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
11. 11.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
12. 12.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
13. 13.Which of these best fits 9:16? (a) a laptop film screen (b) an upright phone screen (c) a landscape video (d) a square post
14. 14.🟦 An image is 240 pixels wide and 250 pixels tall. How many pixels does it have in all?
15. 15.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) louder (d) longer
16. 16.🟦 An image is 40 × 30 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
17. 17.🟦 A 4:3 video frame is 210 pixels tall. How many pixels wide is it?
18. 18.🟦 The resolution of an image is … (a) the paper colour (b) the font (c) the number of pixels (d) the file name
19. 19.🟦 You shrink a 580 × 340 pixel image to half its width and half its height. How many pixels does it have now?
20. 20.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
21. 21.Which of these best fits 1:1? (a) a widescreen slide (b) a landscape video (c) an older TV screen (d) a square profile picture
22. 22.Which of these best fits 4:3? (a) a laptop film screen (b) a square profile picture (c) a square post (d) a classic tablet screen
23. 23.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 An image is 90 × 90 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
25. 25.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) exactly the same (c) squashed or wide (d) sharper
26. 26.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
27. 27.🟦 You shrink an 80 × 420 pixel image to half its width and half its height. How many pixels does it have now?
28. 28.🟦 An image is 80 pixels wide and 350 pixels tall. How many pixels does it have in all?
29. 29.🟦 An image is 2880 × 1620 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
30. 30.🟦 You shrink a 60 × 140 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.🟦 An image is 100 pixels wide and 30 pixels tall. How many pixels does it have in all?
32. 32.Which of these best fits 1:1? (a) a laptop film screen (b) a tall phone video (c) an album cover (d) a widescreen TV
33. 33.🟦 Which aspect ratio best fits an old-style monitor? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
34. 34.🟦 An image is 350 pixels wide and 50 pixels tall. How many pixels does it have in all?
35. 35.Which of these best fits 16:9? (a) an upright phone screen (b) a widescreen TV (c) a classic tablet screen (d) an older TV screen
36. 36.🟦 Which aspect ratio best fits a laptop film screen? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
37. 37.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
38. 38.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
39. 39.🟦 An image is 50 pixels wide and 100 pixels tall. How many pixels does it have in all?
40. 40.🟦 An image is 380 pixels wide and 360 pixels tall. How many pixels does it have in all?

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