Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 263 · 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 390 × 260 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
2. 2.🟦 You shrink a 780 × 780 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
4. 4.🟦 You shrink a 60 × 420 pixel image to half its width and half its height. How many pixels does it have now?
5. 5.🟦 What is a pixel? (a) a tiny dot of colour (b) a type of paper (c) a font size (d) a sound
6. 6.🟦 You shrink an 80 × 520 pixel image to half its width and half its height. How many pixels does it have now?
7. 7.🟦 An image is 270 × 180 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 16:9 (d) 3:2
8. 8.🟦 A 16:9 video frame is 540 pixels tall. How many pixels wide is it?
9. 9.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
10. 10.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) sharper (c) squashed or wide (d) more colourful
11. 11.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
12. 12.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
13. 13.🟦 A photo is 3000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
14. 14.🟦 An image is 600 × 400 pixels. What is its aspect ratio? (a) 4:3 (b) 1:1 (c) 3:2 (d) 16:9
15. 15.🟦 Which aspect ratio best fits a square sticker? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
16. 16.Which of these best fits 16:9? (a) a phone story clip (b) an old-style monitor (c) a classic tablet screen (d) a widescreen TV
17. 17.🟦 Which aspect ratio best fits a square profile picture? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
18. 18.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
19. 19.🟦 A photo is 1000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
20. 20.🟦 An image is 130 × 130 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
21. 21.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
22. 22.Which of these best fits 9:16? (a) a square profile picture (b) a laptop film screen (c) a widescreen slide (d) a phone story clip
23. 23.🟦 An image is 180 pixels wide and 370 pixels tall. How many pixels does it have in all?
24. 24.🟦 An image is 60 pixels wide and 170 pixels tall. How many pixels does it have in all?
25. 25.Which of these best fits 9:16? (a) an upright phone screen (b) a square post (c) a square profile picture (d) a classic tablet screen
26. 26.🟦 A photo is 6000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
27. 27.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
28. 28.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
29. 29.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
30. 30.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
31. 31.Which of these best fits 4:3? (a) an album cover (b) an older TV screen (c) a laptop film screen (d) a widescreen slide
32. 32.Which of these best fits 16:9? (a) a phone story clip (b) a laptop film screen (c) an older TV screen (d) a classic tablet screen
33. 33.Which of these best fits 16:9? (a) a tall phone video (b) a classic tablet screen (c) a phone story clip (d) a landscape video
34. 34.🟦 A 16:9 frame is … (a) a perfect square (b) wider than it is tall (c) taller than wide (d) round
35. 35.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
36. 36.🟦 A 4:3 video frame is 570 pixels tall. How many pixels wide is it?
37. 37.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
38. 38.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) sharper (c) louder (d) blocky (pixelated)
39. 39.🟦 You shrink a 500 × 120 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.🟦 A photo is 3000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

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