Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 345 · 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.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 4:3 (c) 16:9 (d) 1:1
2. 2.🟦 A 4:3 video frame is 240 pixels tall. How many pixels wide is it?
3. 3.🟦 You shrink a 780 × 280 pixel image to half its width and half its height. How many pixels does it have now?
4. 4.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
5. 5.🟦 You shrink a 160 × 200 pixel image to half its width and half its height. How many pixels does it have now?
6. 6.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 6-inch-wide print?
7. 7.🟦 A 16:9 video frame is 1600 pixels wide. How many pixels tall is it?
8. 8.🟦 A 4:3 video frame is 240 pixels wide. How many pixels tall is it?
9. 9.🟦 What is a pixel? (a) a font size (b) a sound (c) a type of paper (d) a tiny dot of colour
10. 10.🟦 Which aspect ratio best fits a landscape video? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
11. 11.🟦 An image is 310 pixels wide and 170 pixels tall. How many pixels does it have in all?
12. 12.🟦 You shrink a 260 × 540 pixel image to half its width and half its height. How many pixels does it have now?
13. 13.🟦 An image is 170 pixels wide and 170 pixels tall. How many pixels does it have in all?
14. 14.Which of these best fits 4:3? (a) an album cover (b) a tall phone video (c) a classic tablet screen (d) a phone story clip
15. 15.🟦 An image is 40 pixels wide and 70 pixels tall. How many pixels does it have in all?
16. 16.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
17. 17.🟦 Which aspect ratio best fits a phone story clip? (a) 9:16 (b) 1:1 (c) 16:9 (d) 4:3
18. 18.🟦 A photo is 2000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.🟦 The resolution of an image is … (a) the file name (b) the number of pixels (c) the paper colour (d) the font
20. 20.🟦 A 16:9 video frame is 720 pixels tall. How many pixels wide is it?
21. 21.🟦 An image is 220 pixels wide and 400 pixels tall. How many pixels does it have in all?
22. 22.🟦 An image is 80 pixels wide and 40 pixels tall. How many pixels does it have in all?
23. 23.🟦 A photo is 3000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 Which aspect ratio best fits a laptop film screen? (a) 4:3 (b) 16:9 (c) 1:1 (d) 9:16
25. 25.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
26. 26.🟦 A 4:3 video frame is 360 pixels wide. How many pixels tall is it?
27. 27.🟦 An image is 90 pixels wide and 350 pixels tall. How many pixels does it have in all?
28. 28.🟦 Which aspect ratio best fits an older TV screen? (a) 9:16 (b) 16:9 (c) 1:1 (d) 4:3
29. 29.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
30. 30.🟦 An image is 10 × 10 pixels. What is its aspect ratio? (a) 3:2 (b) 1:1 (c) 16:9 (d) 4:3
31. 31.🟦 You shrink a 620 × 760 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.🟦 A photo is 2000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
33. 33.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
34. 34.Which of these best fits 16:9? (a) a square sticker (b) a widescreen TV (c) an old-style monitor (d) a square profile picture
35. 35.Which of these best fits 4:3? (a) an album cover (b) a laptop film screen (c) a widescreen TV (d) an old-style monitor
36. 36.🟦 Stretching a photo only sideways makes people look … (a) squashed or wide (b) exactly the same (c) sharper (d) more colourful
37. 37.🟦 A 16:9 video frame is 2240 pixels wide. How many pixels tall is it?
38. 38.🟦 Zooming in a lot on a small photo makes it look … (a) blocky (pixelated) (b) louder (c) longer (d) sharper
39. 39.🟦 You shrink a 200 × 140 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.Which of these best fits 1:1? (a) a phone story clip (b) a landscape video (c) an album cover (d) an upright phone screen

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