Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 727 · 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.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
2. 2.🟦 The resolution of an image is … (a) the paper colour (b) the number of pixels (c) the font (d) the file name
3. 3.🟦 A 16:9 video frame is 540 pixels tall. How many pixels wide is it?
4. 4.🟦 An image is 130 pixels wide and 160 pixels tall. How many pixels does it have in all?
5. 5.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
6. 6.🟦 A photo is 1000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
7. 7.🟦 A 16:9 video frame is 1120 pixels wide. How many pixels tall is it?
8. 8.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
9. 9.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
10. 10.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
11. 11.🟦 Which aspect ratio best fits a widescreen slide? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
12. 12.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 12-inch-wide print?
13. 13.🟦 An image is 200 pixels wide and 160 pixels tall. How many pixels does it have in all?
14. 14.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
15. 15.🟦 An image is 210 × 140 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
16. 16.🟦 An image is 50 pixels wide and 260 pixels tall. How many pixels does it have in all?
17. 17.Which of these best fits 16:9? (a) a square post (b) a widescreen TV (c) an upright phone screen (d) a classic tablet screen
18. 18.🟦 An image is 250 pixels wide and 380 pixels tall. How many pixels does it have in all?
19. 19.🟦 An image is 20 pixels wide and 50 pixels tall. How many pixels does it have in all?
20. 20.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) sharper (c) louder (d) longer
21. 21.🟦 You shrink a 700 × 500 pixel image to half its width and half its height. How many pixels does it have now?
22. 22.🟦 You shrink a 420 × 640 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 Which aspect ratio best fits an album cover? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
24. 24.🟦 An image is 360 × 270 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
25. 25.Which of these best fits 1:1? (a) a widescreen TV (b) a phone story clip (c) an older TV screen (d) a square post
26. 26.Which of these best fits 1:1? (a) a phone story clip (b) a classic tablet screen (c) a landscape video (d) an album cover
27. 27.Which of these best fits 9:16? (a) an album cover (b) an upright phone screen (c) a widescreen TV (d) a laptop film screen
28. 28.🟦 A 16:9 frame is … (a) round (b) a perfect square (c) taller than wide (d) wider than it is tall
29. 29.🟦 An image is 70 pixels wide and 20 pixels tall. How many pixels does it have in all?
30. 30.🟦 An image is 680 × 510 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
31. 31.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
32. 32.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
33. 33.Which of these best fits 16:9? (a) a landscape video (b) an old-style monitor (c) a square sticker (d) an older TV screen
34. 34.🟦 You shrink a 120 × 520 pixel image to half its width and half its height. How many pixels does it have now?
35. 35.🟦 You shrink a 60 × 420 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 An image is 50 pixels wide and 30 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 80 pixels wide and 330 pixels tall. How many pixels does it have in all?
38. 38.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
39. 39.🟦 What is a pixel? (a) a font size (b) a sound (c) a tiny dot of colour (d) a type of paper
40. 40.Which of these best fits 16:9? (a) an old-style monitor (b) a classic tablet screen (c) an older TV screen (d) a widescreen slide

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