Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 239 · 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.🟦 A 4:3 video frame is 360 pixels tall. How many pixels wide is it?
2. 2.🟦 An image is 200 × 150 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
3. 3.🟦 An image is 70 pixels wide and 350 pixels tall. How many pixels does it have in all?
4. 4.🟦 Which aspect ratio best fits an upright phone screen? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
5. 5.🟦 The resolution of an image is … (a) the font (b) the file name (c) the paper colour (d) the number of pixels
6. 6.🟦 A 16:9 video frame is 1440 pixels wide. How many pixels tall is it?
7. 7.🟦 A 4:3 video frame is 630 pixels tall. How many pixels wide is it?
8. 8.🟦 You shrink a 640 × 420 pixel image to half its width and half its height. How many pixels does it have now?
9. 9.🟦 A 16:9 frame is … (a) a perfect square (b) wider than it is tall (c) taller than wide (d) round
10. 10.🟦 Which aspect ratio best fits a widescreen TV? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
11. 11.🟦 An image is 50 × 50 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
12. 12.🟦 Stretching a photo only sideways makes people look … (a) more colourful (b) exactly the same (c) squashed or wide (d) sharper
13. 13.🟦 An image is 180 × 120 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
14. 14.🟦 You shrink an 800 × 360 pixel image to half its width and half its height. How many pixels does it have now?
15. 15.🟦 Which aspect ratio best fits a phone story clip? (a) 9:16 (b) 1:1 (c) 4:3 (d) 16:9
16. 16.Which of these best fits 16:9? (a) an album cover (b) a phone story clip (c) a square post (d) a widescreen TV
17. 17.Which of these best fits 1:1? (a) a square post (b) a laptop film screen (c) a phone story clip (d) a tall phone video
18. 18.🟦 You shrink a 220 × 460 pixel image to half its width and half its height. How many pixels does it have now?
19. 19.🟦 A photo is 5000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
20. 20.Which of these best fits 16:9? (a) a square post (b) a widescreen slide (c) an album cover (d) an older TV screen
21. 21.🟦 Which aspect ratio best fits a square sticker? (a) 16:9 (b) 1:1 (c) 9:16 (d) 4:3
22. 22.🟦 You shrink a 680 × 540 pixel image to half its width and half its height. How many pixels does it have now?
23. 23.🟦 An image is 150 × 100 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
24. 24.🟦 What is a pixel? (a) a font size (b) a sound (c) a tiny dot of colour (d) a type of paper
25. 25.🟦 You shrink a 400 × 220 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 You shrink a 100 × 40 pixel image to half its width and half its height. How many pixels does it have now?
27. 27.Which of these best fits 4:3? (a) a phone story clip (b) a landscape video (c) an older TV screen (d) a square profile picture
28. 28.🟦 An image is 380 pixels wide and 230 pixels tall. How many pixels does it have in all?
29. 29.🟦 You shrink a 180 × 500 pixel image to half its width and half its height. How many pixels does it have now?
30. 30.🟦 A photo is 3000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.🟦 You shrink a 40 × 340 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.🟦 A 4:3 video frame is 280 pixels wide. How many pixels tall is it?
33. 33.Which of these best fits 16:9? (a) a landscape video (b) an album cover (c) a square profile picture (d) an upright phone screen
34. 34.🟦 An image is 20 pixels wide and 330 pixels tall. How many pixels does it have in all?
35. 35.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) sharper (c) longer (d) blocky (pixelated)
36. 36.🟦 An image is 120 × 90 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
37. 37.🟦 Which aspect ratio best fits an older TV screen? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
38. 38.Which of these best fits 9:16? (a) a classic tablet screen (b) a laptop film screen (c) a square profile picture (d) an upright phone screen
39. 39.🟦 A 4:3 video frame is 480 pixels tall. How many pixels wide is it?
40. 40.🟦 A 16:9 video frame is 960 pixels wide. How many pixels tall is it?

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