Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 48 · 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 280 pixels wide. How many pixels tall is it?
2. 2.🟦 You shrink a 560 × 760 pixel image to half its width and half its height. How many pixels does it have now?
3. 3.🟦 An image is 120 pixels wide and 400 pixels tall. How many pixels does it have in all?
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.🟦 An image is 250 pixels wide and 380 pixels tall. How many pixels does it have in all?
6. 6.🟦 Which aspect ratio best fits an album cover? (a) 16:9 (b) 9:16 (c) 1:1 (d) 4:3
7. 7.🟦 An image is 200 pixels wide and 50 pixels tall. How many pixels does it have in all?
8. 8.🟦 Stretching a photo only sideways makes people look … (a) exactly the same (b) squashed or wide (c) sharper (d) more colourful
9. 9.🟦 Which aspect ratio best fits a widescreen TV? (a) 4:3 (b) 1:1 (c) 9:16 (d) 16:9
10. 10.🟦 Which aspect ratio best fits a laptop film screen? (a) 16:9 (b) 4:3 (c) 1:1 (d) 9:16
11. 11.🟦 Which aspect ratio best fits a phone story clip? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
12. 12.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 4-inch-wide print?
13. 13.🟦 What is a pixel? (a) a font size (b) a tiny dot of colour (c) a sound (d) a type of paper
14. 14.🟦 The resolution of an image is … (a) the paper colour (b) the file name (c) the font (d) the number of pixels
15. 15.🟦 An image is 40 pixels wide and 50 pixels tall. How many pixels does it have in all?
16. 16.🟦 An image is 210 × 210 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 4:3 (d) 1:1
17. 17.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
18. 18.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
19. 19.🟦 An image is 380 pixels wide and 280 pixels tall. How many pixels does it have in all?
20. 20.🟦 A photo is 5000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
21. 21.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 5-inch-wide print?
22. 22.🟦 A photo is 4000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
23. 23.🟦 A photo is 3000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
24. 24.🟦 Which aspect ratio best fits a square post? (a) 1:1 (b) 9:16 (c) 16:9 (d) 4:3
25. 25.🟦 An image is 800 × 450 pixels. What is its aspect ratio? (a) 1:1 (b) 4:3 (c) 3:2 (d) 16:9
26. 26.🟦 A photo is 1000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
27. 27.🟦 A photo is 5000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
28. 28.Which of these best fits 4:3? (a) a landscape video (b) a widescreen TV (c) a laptop film screen (d) a classic tablet screen
29. 29.🟦 A 4:3 video frame is 680 pixels wide. How many pixels tall is it?
30. 30.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 8-inch-wide print?
31. 31.🟦 Zooming in a lot on a small photo makes it look … (a) louder (b) blocky (pixelated) (c) sharper (d) longer
32. 32.🟦 An image is 400 pixels wide and 180 pixels tall. How many pixels does it have in all?
33. 33.🟦 An image is 30 pixels wide and 290 pixels tall. How many pixels does it have in all?
34. 34.🟦 A photo is 2000 × 2000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
35. 35.🟦 Which aspect ratio best fits an upright phone screen? (a) 4:3 (b) 16:9 (c) 9:16 (d) 1:1
36. 36.🟦 An image is 240 × 240 pixels. What is its aspect ratio? (a) 16:9 (b) 3:2 (c) 1:1 (d) 4:3
37. 37.🟦 An image is 300 pixels wide and 160 pixels tall. How many pixels does it have in all?
38. 38.🟦 You shrink a 380 × 240 pixel image to half its width and half its height. How many pixels does it have now?
39. 39.🟦 An image is 280 pixels wide and 140 pixels tall. How many pixels does it have in all?
40. 40.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?

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