Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 201 · 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 180 pixels wide and 220 pixels tall. How many pixels does it have in all?
2. 2.🟦 An image is 140 pixels wide and 110 pixels tall. How many pixels does it have in all?
3. 3.🟦 The resolution of an image is … (a) the font (b) the number of pixels (c) the file name (d) the paper colour
4. 4.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) sharper (c) squashed or wide (d) exactly the same
5. 5.🟦 A 16:9 frame is … (a) a perfect square (b) round (c) wider than it is tall (d) taller than wide
6. 6.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
7. 7.🟦 What is a pixel? (a) a sound (b) a font size (c) a tiny dot of colour (d) a type of paper
8. 8.🟦 A 16:9 video frame is 1980 pixels tall. How many pixels wide is it?
9. 9.Which of these best fits 9:16? (a) a widescreen TV (b) a square sticker (c) a square post (d) a tall phone video
10. 10.🟦 You shrink a 200 × 100 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 You shrink a 260 × 620 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
13. 13.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
14. 14.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
15. 15.Which of these best fits 9:16? (a) an old-style monitor (b) a phone story clip (c) a laptop film screen (d) a landscape video
16. 16.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) blocky (pixelated) (c) sharper (d) louder
17. 17.🟦 A 16:9 video frame is 1440 pixels tall. How many pixels wide is it?
18. 18.🟦 A photo is 1000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 An image is 80 pixels wide and 160 pixels tall. How many pixels does it have in all?
20. 20.Which of these best fits 4:3? (a) a phone story clip (b) an older TV screen (c) a laptop film screen (d) a widescreen TV
21. 21.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 16:9 (c) 4:3 (d) 9:16
22. 22.🟦 You shrink a 580 × 800 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 You shrink a 200 × 380 pixel image to half its width and half its height. How many pixels does it have now?
24. 24.🟦 You shrink a 440 × 160 pixel image to half its width and half its height. How many pixels does it have now?
25. 25.🟦 You shrink a 740 × 640 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
27. 27.🟦 A 16:9 video frame is 640 pixels wide. How many pixels tall is it?
28. 28.🟦 Which aspect ratio best fits a laptop film screen? (a) 9:16 (b) 16:9 (c) 4:3 (d) 1:1
29. 29.Which of these best fits 9:16? (a) a landscape video (b) an old-style monitor (c) an upright phone screen (d) a laptop film screen
30. 30.🟦 Which aspect ratio best fits an album cover? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
31. 31.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
32. 32.🟦 You shrink a 100 × 80 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
34. 34.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
35. 35.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
36. 36.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 An image is 800 × 600 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 4:3 (d) 3:2
38. 38.🟦 Which aspect ratio best fits a widescreen slide? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
39. 39.🟦 A 16:9 video frame is 1170 pixels tall. How many pixels wide is it?
40. 40.🟦 You shrink a 320 × 660 pixel image to half its width and half its height. How many pixels does it have now?

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