Graphic Design Worksheet: Pixels and Image Size

Animation and design lesson 14: Pixels and image size · Set 24 · 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.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 3-inch-wide print?
2. 2.🟦 A photo is 4000 × 1500 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
3. 3.🟦 An image is 50 pixels wide and 140 pixels tall. How many pixels does it have in all?
4. 4.🟦 A photo is 2000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
5. 5.🟦 You shrink a 360 × 700 pixel image to half its width and half its height. How many pixels does it have now?
6. 6.🟦 An image is 240 × 160 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
7. 7.🟦 A photo is 4000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
8. 8.🟦 An image is 210 pixels wide and 90 pixels tall. How many pixels does it have in all?
9. 9.🟦 Which aspect ratio best fits a square post? (a) 1:1 (b) 4:3 (c) 16:9 (d) 9:16
10. 10.🟦 A photo is 2000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
11. 11.🟦 You shrink a 640 × 40 pixel image to half its width and half its height. How many pixels does it have now?
12. 12.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for a 10-inch-wide print?
13. 13.🟦 To print sharply at 150 pixels per inch, how many pixels wide must a photo be for a 7-inch-wide print?
14. 14.🟦 A 16:9 video frame is 900 pixels tall. How many pixels wide is it?
15. 15.🟦 A 16:9 video frame is 1620 pixels tall. How many pixels wide is it?
16. 16.🟦 An image is 600 × 450 pixels. What is its aspect ratio? (a) 3:2 (b) 4:3 (c) 16:9 (d) 1:1
17. 17.🟦 A 16:9 frame is … (a) round (b) a perfect square (c) taller than wide (d) wider than it is tall
18. 18.🟦 A photo is 6000 × 4000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
19. 19.Which of these best fits 9:16? (a) an older TV screen (b) a square post (c) an old-style monitor (d) a phone story clip
20. 20.🟦 To print sharply at 300 pixels per inch, how many pixels wide must a photo be for an 11-inch-wide print?
21. 21.Which of these best fits 16:9? (a) an upright phone screen (b) a square post (c) an album cover (d) a widescreen TV
22. 22.Which of these best fits 1:1? (a) an old-style monitor (b) a phone story clip (c) a widescreen TV (d) an album cover
23. 23.🟦 An image is 270 × 180 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
24. 24.🟦 The resolution of an image is … (a) the paper colour (b) the number of pixels (c) the file name (d) the font
25. 25.🟦 You shrink a 40 × 60 pixel image to half its width and half its height. How many pixels does it have now?
26. 26.🟦 Which aspect ratio best fits a landscape video? (a) 4:3 (b) 9:16 (c) 1:1 (d) 16:9
27. 27.Which of these best fits 1:1? (a) a tall phone video (b) a square profile picture (c) an older TV screen (d) a widescreen slide
28. 28.🟦 You shrink a 180 × 440 pixel image to half its width and half its height. How many pixels does it have now?
29. 29.🟦 What is a pixel? (a) a sound (b) a tiny dot of colour (c) a type of paper (d) a font size
30. 30.🟦 A photo is 4000 × 3000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =
31. 31.🟦 An image is 70 pixels wide and 90 pixels tall. How many pixels does it have in all?
32. 32.🟦 Which aspect ratio best fits a classic tablet screen? (a) 1:1 (b) 16:9 (c) 9:16 (d) 4:3
33. 33.🟦 An image is 60 × 40 pixels. What is its aspect ratio? (a) 16:9 (b) 4:3 (c) 1:1 (d) 3:2
34. 34.🟦 An image is 130 pixels wide and 280 pixels tall. How many pixels does it have in all?
35. 35.🟦 You shrink a 180 × 160 pixel image to half its width and half its height. How many pixels does it have now?
36. 36.🟦 An image is 400 × 300 pixels. What is its aspect ratio? (a) 3:2 (b) 16:9 (c) 1:1 (d) 4:3
37. 37.🟦 A 16:9 video frame is 3520 pixels wide. How many pixels tall is it?
38. 38.🟦 An image is 160 × 90 pixels. What is its aspect ratio? (a) 16:9 (b) 1:1 (c) 4:3 (d) 3:2
39. 39.🟦 Which aspect ratio best fits a tall phone video? (a) 16:9 (b) 1:1 (c) 4:3 (d) 9:16
40. 40.🟦 A photo is 1000 × 1000 pixels. How many megapixels is that (1 megapixel = 1000000 pixels)? =

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