Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 509 · 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 110 × 110 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
2. 2.Which of these best fits 1:1? (a) a laptop film screen (b) a widescreen slide (c) an upright phone screen (d) a square sticker
3. 3.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
4. 4.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) longer (d) blocky (pixelated)
5. 5.🟦 A 4:3 video frame is 420 pixels tall. How many pixels wide is it?
6. 6.🟦 You shrink a 220 × 40 pixel image to half its width and half its height. How many pixels does it have now?
7. 7.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
8. 8.🟦 An image is 170 pixels wide and 60 pixels tall. How many pixels does it have in all?
9. 9.🟦 What is a pixel? (a) a sound (b) a tiny dot of colour (c) a type of paper (d) a font size
10. 10.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
11. 11.Which of these best fits 16:9? (a) a square post (b) a classic tablet screen (c) an upright phone screen (d) a widescreen TV
12. 12.🟦 You shrink a 160 × 40 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) exactly the same (d) more colourful
14. 14.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
15. 15.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
16. 16.🟦 The resolution of an image is … (a) the paper colour (b) the font (c) the file name (d) the number of pixels
17. 17.🟦 An image is 1600 × 900 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
18. 18.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
19. 19.🟦 An image is 30 pixels wide and 40 pixels tall. How many pixels does it have in all?
20. 20.🟦 An image is 320 pixels wide and 280 pixels tall. How many pixels does it have in all?
21. 21.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
22. 22.🟦 A 16:9 video frame is 1120 pixels wide. How many pixels tall is it?
23. 23.🟦 A 16:9 frame is … (a) wider than it is tall (b) round (c) a perfect square (d) taller than wide
24. 24.Which of these best fits 4:3? (a) a square post (b) a phone story clip (c) a landscape video (d) an old-style monitor
25. 25.🟦 You shrink an 80 × 300 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 Which aspect ratio best fits an album cover? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
27. 27.Which of these best fits 16:9? (a) a tall phone video (b) an older TV screen (c) a laptop film screen (d) a phone story clip
28. 28.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
29. 29.🟦 An image is 100 pixels wide and 50 pixels tall. How many pixels does it have in all?
30. 30.🟦 You shrink a 500 × 160 pixel image to half its width and half its height. How many pixels does it have now?
31. 31.🟦 An image is 250 pixels wide and 50 pixels tall. How many pixels does it have in all?
32. 32.🟦 An image is 300 pixels wide and 350 pixels tall. How many pixels does it have in all?
33. 33.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
34. 34.Which of these best fits 1:1? (a) a tall phone video (b) an upright phone screen (c) a phone story clip (d) a square post
35. 35.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
36. 36.🟦 An image is 80 pixels wide and 180 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 80 × 80 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2
38. 38.🟦 You shrink a 700 × 300 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.Which of these best fits 9:16? (a) an album cover (b) a widescreen slide (c) a tall phone video (d) a laptop film screen
40. 40.Which of these best fits 4:3? (a) a square sticker (b) a laptop film screen (c) a landscape video (d) a classic tablet screen

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