Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 484 · 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.🟦 You shrink a 780 × 100 pixel image to half its width and half its height. How many pixels does it have now?
2. 2.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
3. 3.🟦 What is a pixel? (a) a tiny dot of colour (b) a type of paper (c) a sound (d) a font size
4. 4.🟦 A 16:9 video frame is 640 pixels wide. How many pixels tall is it?
5. 5.Which of these best fits 1:1? (a) a square profile picture (b) a phone story clip (c) an upright phone screen (d) a landscape video
6. 6.🟦 Which aspect ratio best fits a widescreen TV? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
7. 7.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 2-inch-wide print?
8. 8.Which of these best fits 9:16? (a) a laptop film screen (b) a square post (c) a phone story clip (d) an album cover
9. 9.Which of these best fits 1:1? (a) a widescreen slide (b) a square post (c) a widescreen TV (d) an upright phone screen
10. 10.Which of these best fits 9:16? (a) an older TV screen (b) an album cover (c) an upright phone screen (d) a classic tablet screen
11. 11.🟦 A 4:3 video frame is 630 pixels tall. How many pixels wide is it?
12. 12.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) more colourful (d) sharper
13. 13.🟦 Which aspect ratio best fits a widescreen slide? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
14. 14.🟦 A photo is 2000 × 3500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
15. 15.🟦 A 16:9 video frame is 1280 pixels wide. How many pixels tall is it?
16. 16.🟦 You shrink a 60 × 340 pixel image to half its width and half its height. How many pixels does it have now?
17. 17.🟦 The resolution of an image is … (a) the file name (b) the font (c) the paper colour (d) the number of pixels
18. 18.🟦 A 16:9 video frame is 480 pixels wide. How many pixels tall is it?
19. 19.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
20. 20.🟦 You shrink a 540 × 360 pixel image to half its width and half its height. How many pixels does it have now?
21. 21.🟦 An image is 320 × 180 pixels. What is its aspect ratio? (a) 1:1 (b) 3:2 (c) 16:9 (d) 4:3
22. 22.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
23. 23.Which of these best fits 16:9? (a) a landscape video (b) an older TV screen (c) a phone story clip (d) a classic tablet screen
24. 24.🟦 Which aspect ratio best fits a square sticker? (a) 9:16 (b) 4:3 (c) 1:1 (d) 16:9
25. 25.🟦 An image is 350 pixels wide and 380 pixels tall. How many pixels does it have in all?
26. 26.🟦 A 4:3 video frame is 680 pixels wide. How many pixels tall is it?
27. 27.🟦 A 4:3 video frame is 690 pixels tall. How many pixels wide is it?
28. 28.🟦 A 4:3 video frame is 660 pixels tall. How many pixels wide is it?
29. 29.🟦 A 16:9 frame is … (a) taller than wide (b) a perfect square (c) round (d) wider than it is tall
30. 30.🟦 A 16:9 video frame is 270 pixels tall. How many pixels wide is it?
31. 31.🟦 You shrink a 660 × 320 pixel image to half its width and half its height. How many pixels does it have now?
32. 32.🟦 You shrink a 660 × 80 pixel image to half its width and half its height. How many pixels does it have now?
33. 33.🟦 A photo is 3000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
34. 34.🟦 An image is 80 pixels wide and 30 pixels tall. How many pixels does it have in all?
35. 35.🟦 An image is 60 pixels wide and 110 pixels tall. How many pixels does it have in all?
36. 36.🟦 A photo is 1000 × 2500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
37. 37.🟦 Zooming in a lot on a small photo makes it look … (a) longer (b) blocky (pixelated) (c) louder (d) sharper
38. 38.🟦 An image is 120 × 120 pixels. What is its aspect ratio? (a) 1:1 (b) 16:9 (c) 3:2 (d) 4:3
39. 39.🟦 You shrink a 640 × 780 pixel image to half its width and half its height. How many pixels does it have now?
40. 40.🟦 A 4:3 video frame is 60 pixels tall. How many pixels wide is it?

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