Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 785 · 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 12-inch-wide print?
2. 2.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
3. 3.🟦 Stretching a photo only sideways makes people look … (a) sharper (b) more colourful (c) exactly the same (d) squashed or wide
4. 4.🟦 The resolution of an image is … (a) the font (b) the paper colour (c) the number of pixels (d) the file name
5. 5.🟦 What is a pixel? (a) a sound (b) a font size (c) a tiny dot of colour (d) a type of paper
6. 6.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
7. 7.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
8. 8.🟦 Zooming in a lot on a small photo makes it look … (a) sharper (b) blocky (pixelated) (c) louder (d) longer
9. 9.🟦 A 4:3 video frame is 150 pixels tall. How many pixels wide is it?
10. 10.Which of these best fits 4:3? (a) an old-style monitor (b) a square sticker (c) an upright phone screen (d) an album cover
11. 11.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
12. 12.🟦 An image is 340 pixels wide and 210 pixels tall. How many pixels does it have in all?
13. 13.🟦 A 16:9 frame is … (a) round (b) taller than wide (c) a perfect square (d) wider than it is tall
14. 14.Which of these best fits 1:1? (a) a laptop film screen (b) an older TV screen (c) a square sticker (d) a tall phone video
15. 15.🟦 An image is 220 pixels wide and 90 pixels tall. How many pixels does it have in all?
16. 16.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
17. 17.Which of these best fits 4:3? (a) a widescreen TV (b) a square post (c) a landscape video (d) an older TV screen
18. 18.🟦 An image is 130 × 130 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
19. 19.🟦 A photo is 3000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
20. 20.🟦 An image is 30 × 30 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 3:2 (d) 1:1
21. 21.🟦 A photo is 5000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
22. 22.Which of these best fits 4:3? (a) a square post (b) a classic tablet screen (c) an album cover (d) a square sticker
23. 23.🟦 A photo is 6000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 You shrink a 560 × 540 pixel image to half its width and half its height. How many pixels does it have now?
25. 25.🟦 You shrink a 200 × 780 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 A photo is 6000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
27. 27.🟦 Which aspect ratio best fits an old-style monitor? (a) 4:3 (b) 1:1 (c) 16:9 (d) 9:16
28. 28.🟦 A 16:9 video frame is 180 pixels tall. How many pixels wide is it?
29. 29.Which of these best fits 16:9? (a) a landscape video (b) a classic tablet screen (c) a square sticker (d) an old-style monitor
30. 30.🟦 An image is 190 pixels wide and 70 pixels tall. How many pixels does it have in all?
31. 31.🟦 An image is 80 × 60 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 3:2 (d) 4:3
32. 32.Which of these best fits 9:16? (a) a tall phone video (b) an older TV screen (c) a widescreen slide (d) an old-style monitor
33. 33.🟦 An image is 170 × 170 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
34. 34.🟦 A 16:9 video frame is 2880 pixels wide. How many pixels tall is it?
35. 35.Which of these best fits 9:16? (a) an older TV screen (b) a phone story clip (c) a landscape video (d) a square profile picture
36. 36.🟦 A 4:3 video frame is 180 pixels tall. How many pixels wide is it?
37. 37.🟦 An image is 60 pixels wide and 270 pixels tall. How many pixels does it have in all?
38. 38.Which of these best fits 16:9? (a) a classic tablet screen (b) a laptop film screen (c) an upright phone screen (d) an old-style monitor
39. 39.🟦 An image is 120 pixels wide and 290 pixels tall. How many pixels does it have in all?
40. 40.🟦 You shrink a 760 × 80 pixel image to half its width and half its height. How many pixels does it have now?

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