Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 10 · 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 370 pixels wide and 40 pixels tall. How many pixels does it have in all?
2. 2.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
3. 3.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 9:16 (c) 16:9 (d) 1:1
4. 4.🟦 A 16:9 video frame is 3680 pixels wide. How many pixels tall is it?
5. 5.Which of these best fits 9:16? (a) a square sticker (b) a landscape video (c) an album cover (d) a tall phone video
6. 6.Which of these best fits 4:3? (a) a widescreen TV (b) a square profile picture (c) an old-style monitor (d) a laptop film screen
7. 7.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
8. 8.🟦 What is a pixel? (a) a font size (b) a sound (c) a tiny dot of colour (d) a type of paper
9. 9.🟦 An image is 170 pixels wide and 120 pixels tall. How many pixels does it have in all?
10. 10.🟦 You shrink a 700 × 360 pixel image to half its width and half its height. How many pixels does it have now?
11. 11.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) blocky (pixelated) (d) longer
12. 12.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
13. 13.Which of these best fits 16:9? (a) an older TV screen (b) a phone story clip (c) a landscape video (d) a tall phone video
14. 14.Which of these best fits 1:1? (a) a widescreen TV (b) a square sticker (c) a tall phone video (d) an upright phone screen
15. 15.🟦 You shrink a 340 × 340 pixel image to half its width and half its height. How many pixels does it have now?
16. 16.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) sharper (c) exactly the same (d) squashed or wide
17. 17.🟦 A photo is 6000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 An image is 30 × 30 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 4:3 (d) 16:9
19. 19.🟦 A 4:3 video frame is 600 pixels wide. How many pixels tall is it?
20. 20.🟦 A photo is 4000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
21. 21.🟦 A photo is 4000 × 3000 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 landscape video (c) an older TV screen (d) an upright phone screen
23. 23.🟦 A 16:9 video frame is 720 pixels tall. How many pixels wide is it?
24. 24.🟦 A photo is 5000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
25. 25.🟦 The resolution of an image is … (a) the file name (b) the number of pixels (c) the paper colour (d) the font
26. 26.🟦 Which aspect ratio best fits an old-style monitor? (a) 16:9 (b) 4:3 (c) 9:16 (d) 1:1
27. 27.🟦 A photo is 5000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.🟦 Which aspect ratio best fits a widescreen slide? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
29. 29.🟦 An image is 200 pixels wide and 200 pixels tall. How many pixels does it have in all?
30. 30.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
31. 31.🟦 An image is 60 × 60 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
32. 32.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
33. 33.Which of these best fits 9:16? (a) a laptop film screen (b) a phone story clip (c) a widescreen TV (d) a widescreen slide
34. 34.🟦 Which aspect ratio best fits an upright phone screen? (a) 16:9 (b) 9:16 (c) 4:3 (d) 1:1
35. 35.🟦 A photo is 2000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
36. 36.🟦 An image is 370 pixels wide and 110 pixels tall. How many pixels does it have in all?
37. 37.🟦 An image is 40 pixels wide and 80 pixels tall. How many pixels does it have in all?
38. 38.🟦 You shrink a 780 × 760 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 You shrink a 660 × 420 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.🟦 You shrink an 80 × 680 pixel image to half its width and half its height. How many pixels does it have now?

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