Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 289 · 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 photo is 3000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
2. 2.🟦 You shrink a 740 × 660 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 An image is 30 × 20 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
4. 4.🟦 You shrink a 520 × 640 pixel image to half its width and half its height. How many pixels does it have now?
5. 5.Which of these best fits 1:1? (a) a landscape video (b) a laptop film screen (c) a phone story clip (d) a square sticker
6. 6.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
7. 7.Which of these best fits 9:16? (a) a widescreen TV (b) a laptop film screen (c) a square sticker (d) a phone story clip
8. 8.Which of these best fits 16:9? (a) an older TV screen (b) a laptop film screen (c) a square post (d) an album cover
9. 9.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) longer (c) blocky (pixelated) (d) sharper
10. 10.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
11. 11.🟦 You shrink a 580 × 240 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 An image is 480 × 270 pixels. What is its aspect ratio? (a) 4:3 (b) 3:2 (c) 16:9 (d) 1:1
13. 13.🟦 A 4:3 video frame is 420 pixels tall. How many pixels wide is it?
14. 14.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
15. 15.🟦 An image is 450 × 300 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
16. 16.🟦 You shrink an 800 × 140 pixel image to half its width and half its height. How many pixels does it have now?
17. 17.🟦 An image is 30 pixels wide and 360 pixels tall. How many pixels does it have in all?
18. 18.🟦 A 16:9 video frame is 2880 pixels wide. How many pixels tall is it?
19. 19.🟦 What is a pixel? (a) a type of paper (b) a sound (c) a tiny dot of colour (d) a font size
20. 20.🟦 You shrink a 100 × 140 pixel image to half its width and half its height. How many pixels does it have now?
21. 21.🟦 You shrink a 620 × 760 pixel image to half its width and half its height. How many pixels does it have now?
22. 22.🟦 Which aspect ratio best fits a tall phone video? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
23. 23.🟦 You shrink a 180 × 220 pixel image to half its width and half its height. How many pixels does it have now?
24. 24.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
25. 25.🟦 You shrink a 420 × 780 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 A 4:3 video frame is 160 pixels wide. How many pixels tall is it?
27. 27.🟦 Which aspect ratio best fits a laptop film screen? (a) 1:1 (b) 4:3 (c) 9:16 (d) 16:9
28. 28.🟦 The resolution of an image is … (a) the font (b) the file name (c) the paper colour (d) the number of pixels
29. 29.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
30. 30.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
31. 31.Which of these best fits 1:1? (a) an album cover (b) a landscape video (c) a tall phone video (d) a laptop film screen
32. 32.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 9-inch-wide print?
33. 33.🟦 A 16:9 video frame is 3200 pixels wide. How many pixels tall is it?
34. 34.Which of these best fits 16:9? (a) an album cover (b) a landscape video (c) a tall phone video (d) a square sticker
35. 35.🟦 A 16:9 video frame is 1620 pixels tall. How many pixels wide is it?
36. 36.🟦 A 16:9 video frame is 1170 pixels tall. How many pixels wide is it?
37. 37.🟦 You shrink a 760 × 420 pixel image to half its width and half its height. How many pixels does it have now?
38. 38.🟦 You shrink a 780 × 800 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 An image is 290 pixels wide and 60 pixels tall. How many pixels does it have in all?
40. 40.🟦 You shrink a 720 × 400 pixel image to half its width and half its height. How many pixels does it have now?

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