Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 107 · 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 a laptop film screen? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
2. 2.🟦 What is a pixel? (a) a type of paper (b) a sound (c) a tiny dot of colour (d) a font size
3. 3.🟦 You shrink a 40 × 260 pixel image to half its width and half its height. How many pixels does it have now?
4. 4.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
5. 5.🟦 Which aspect ratio best fits a phone story clip? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
6. 6.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
7. 7.🟦 An image is 320 × 180 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 16:9 (d) 3:2
8. 8.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
9. 9.🟦 A 4:3 video frame is 840 pixels wide. How many pixels tall is it?
10. 10.🟦 You shrink a 720 × 240 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 Which aspect ratio best fits a square profile picture? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
12. 12.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
13. 13.🟦 Which aspect ratio best fits a square post? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
14. 14.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
15. 15.🟦 An image is 110 pixels wide and 120 pixels tall. How many pixels does it have in all?
16. 16.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
17. 17.Which of these best fits 9:16? (a) a phone story clip (b) an album cover (c) a square post (d) an old-style monitor
18. 18.🟦 An image is 300 × 200 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
19. 19.Which of these best fits 9:16? (a) an album cover (b) a square sticker (c) a tall phone video (d) a square post
20. 20.🟦 An image is 60 pixels wide and 250 pixels tall. How many pixels does it have in all?
21. 21.🟦 An image is 40 × 40 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
22. 22.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
23. 23.🟦 An image is 320 pixels wide and 130 pixels tall. How many pixels does it have in all?
24. 24.🟦 A 16:9 video frame is 2720 pixels wide. How many pixels tall is it?
25. 25.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) more colourful (c) exactly the same (d) squashed or wide
26. 26.Which of these best fits 16:9? (a) an upright phone screen (b) a square sticker (c) an old-style monitor (d) a laptop film screen
27. 27.Which of these best fits 16:9? (a) an older TV screen (b) a widescreen slide (c) an album cover (d) a square profile picture
28. 28.🟦 Which aspect ratio best fits an upright phone screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
29. 29.🟦 An image is 2880 × 1620 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
30. 30.🟦 A 16:9 video frame is 1620 pixels tall. How many pixels wide is it?
31. 31.🟦 A 16:9 frame is … (a) a perfect square (b) round (c) wider than it is tall (d) taller than wide
32. 32.🟦 An image is 170 pixels wide and 40 pixels tall. How many pixels does it have in all?
33. 33.Which of these best fits 4:3? (a) a widescreen TV (b) a square profile picture (c) a phone story clip (d) an older TV screen
34. 34.Which of these best fits 16:9? (a) a widescreen TV (b) a phone story clip (c) an older TV screen (d) a tall phone video
35. 35.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) longer (d) blocky (pixelated)
36. 36.🟦 An image is 270 pixels wide and 280 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 310 pixels wide and 210 pixels tall. How many pixels does it have in all?
38. 38.🟦 An image is 100 × 100 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 1:1 (d) 16:9
39. 39.🟦 You shrink a 220 × 760 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.🟦 An image is 360 × 240 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2

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