Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 36 · 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 150 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
2. 2.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
3. 3.🟦 A 16:9 frame is … (a) taller than wide (b) a perfect square (c) round (d) wider than it is tall
4. 4.🟦 What is a pixel? (a) a type of paper (b) a font size (c) a tiny dot of colour (d) a sound
5. 5.🟦 An image is 210 pixels wide and 40 pixels tall. How many pixels does it have in all?
6. 6.🟦 An image is 40 pixels wide and 150 pixels tall. How many pixels does it have in all?
7. 7.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
8. 8.Which of these best fits 16:9? (a) a phone story clip (b) a tall phone video (c) a landscape video (d) an older TV screen
9. 9.🟦 A 16:9 video frame is 450 pixels tall. How many pixels wide is it?
10. 10.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
11. 11.🟦 Which aspect ratio best fits a square profile picture? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
12. 12.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) longer (d) blocky (pixelated)
13. 13.🟦 A photo is 5000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
14. 14.🟦 An image is 400 pixels wide and 390 pixels tall. How many pixels does it have in all?
15. 15.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
16. 16.🟦 A 16:9 video frame is 640 pixels wide. How many pixels tall is it?
17. 17.Which of these best fits 4:3? (a) a phone story clip (b) a landscape video (c) a widescreen slide (d) an older TV screen
18. 18.Which of these best fits 9:16? (a) a square sticker (b) a laptop film screen (c) a phone story clip (d) a widescreen slide
19. 19.Which of these best fits 1:1? (a) a widescreen TV (b) a laptop film screen (c) an album cover (d) an upright phone screen
20. 20.🟦 Which aspect ratio best fits a classic tablet screen? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
21. 21.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
22. 22.Which of these best fits 16:9? (a) a square post (b) an old-style monitor (c) a widescreen TV (d) a classic tablet screen
23. 23.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) squashed or wide (c) exactly the same (d) more colourful
25. 25.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
26. 26.🟦 An image is 220 pixels wide and 70 pixels tall. How many pixels does it have in all?
27. 27.🟦 An image is 170 × 170 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 4:3 (d) 1:1
28. 28.🟦 You shrink a 780 × 120 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 You shrink a 660 × 560 pixel image to half its width and half its height. How many pixels does it have now?
30. 30.🟦 The resolution of an image is … (a) the paper colour (b) the file name (c) the font (d) the number of pixels
31. 31.🟦 A photo is 1000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
32. 32.🟦 An image is 480 × 270 pixels. What is its aspect ratio? (a) 4:3 (b) 16:9 (c) 1:1 (d) 3:2
33. 33.🟦 You shrink a 660 × 500 pixel image to half its width and half its height. How many pixels does it have now?
34. 34.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
35. 35.Which of these best fits 16:9? (a) a widescreen slide (b) an album cover (c) an older TV screen (d) a square post
36. 36.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
37. 37.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
38. 38.🟦 A 4:3 video frame is 420 pixels tall. How many pixels wide is it?
39. 39.🟦 You shrink a 40 × 60 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.🟦 You shrink a 420 × 480 pixel image to half its width and half its height. How many pixels does it have now?

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