Web Worksheet: Accessibility Basics

HTML and CSS lesson 24: Accessibility basics · Set 640 · 40 questions

Code tip (Pages for everyone): Headings go down one level at a time: h1 → h2 → h3 (they may jump back up). Alt text on images, clear link text, labels on form boxes, big enough text. Strong contrast (black on white, yellow on black) is easy to read; light grey on white is not.

1. 1.♿ Which link text is clearest? (a) link (b) click here (c) here (d) Read the fruit facts
2. 2.Which colour pair is easy to read? (a) red on green (b) yellow on white (c) blue on purple (d) black on white
3. 3.♿ What does good colour contrast mean? (a) many bright colours (b) no colours at all (c) only red text (d) text stands out clearly
4. 4.True or false: “colour as the only clue” makes the page harder to use. (a) False (b) True
5. 5.♿ Is this heading order correct (no level skipped)?
   <h1> → <h2> → <h2> → <h4> (a) No (b) Yes
6. 6.Which colour pair is hard to read? (a) yellow on black (b) black on white (c) blue on purple (d) white on dark blue
7. 7.♿ Does this help everyone, or make the page harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
8. 8.True or false: “add alt text to images” makes the page harder to use. (a) True (b) False
9. 9.Which colour pair is easy to read? (a) light grey on white (b) yellow on white (c) blue on purple (d) white on black
10. 10.♿ Does this help everyone, or make the page harder to use: link text “click here”? (a) makes it harder (b) helps everyone
11. 11.♿ Is this heading order correct (no level skipped)?
    <h1> → <h2> → <h3> → <h2> (a) No (b) Yes
12. 12.🌗 Is black on white easy or hard to read? (a) easy to read (b) hard to read
13. 13.True or false: “use headings in order” makes the page harder to use. (a) False (b) True
14. 14.Which colour pair is hard to read? (a) white on dark blue (b) black on white (c) light grey on white (d) dark grey on white
15. 15.🌗 Is light grey on white easy or hard to read? (a) easy to read (b) hard to read
16. 16.♿ Who uses a screen reader? (a) only teachers (b) people who are blind (c) only robots (d) only coders
17. 17.True or false: “skipping heading levels” helps everyone use the page. (a) False (b) True
18. 18.♿ Is this heading order correct (no level skipped)?
    <h1> → <h1> → <h1> → <h1> (a) No (b) Yes
19. 19.Which colour pair is hard to read? (a) white on dark blue (b) yellow on black (c) yellow on white (d) black on white
20. 20.🌗 Is yellow on white easy or hard to read? (a) easy to read (b) hard to read
21. 21.♿ Does this help everyone, or make the page harder to use: label every form box? (a) makes it harder (b) helps everyone
22. 22.True or false: “add alt text to images” helps everyone use the page. (a) True (b) False
23. 23.Which colour pair is hard to read? (a) red on green (b) white on black (c) black on white (d) dark grey on white
24. 24.True or false: “colour as the only clue” helps everyone use the page. (a) True (b) False
25. 25.True or false: “use headings in order” helps everyone use the page. (a) True (b) False
26. 26.🌗 Is blue on purple easy or hard to read? (a) easy to read (b) hard to read
27. 27.♿ Does this help everyone, or make the page harder to use: write clear link text? (a) helps everyone (b) makes it harder
28. 28.♿ Is this heading order correct (no level skipped)?
    <h1> → <h2> → <h2> → <h2> (a) Yes (b) No
29. 29.Which colour pair is hard to read? (a) pink on red (b) white on black (c) black on white (d) dark grey on white
30. 30.♿ A part of the page is under a <h4> heading. Which tag should its sub-heading use? (a) <h5> (b) <h6> (c) <h3> (d) <h2>
31. 31.♿ A part of the page is under a <h2> heading. Which tag should its sub-heading use? (a) <h4> (b) <h2> (c) <h3> (d) <h6>
32. 32.♿ Is this heading order correct (no level skipped)?
    <h1> → <h3> → <h3> → <h2> (a) Yes (b) No
33. 33.True or false: “tiny grey text” makes the page harder to use. (a) False (b) True
34. 34.🌗 Is dark grey on white easy or hard to read? (a) hard to read (b) easy to read
35. 35.♿ Does this help everyone, or make the page harder to use: images with no alt? (a) makes it harder (b) helps everyone
36. 36.♿ Does this help everyone, or make the page harder to use: use big enough text? (a) makes it harder (b) helps everyone
37. 37.🌗 Is white on black easy or hard to read? (a) hard to read (b) easy to read
38. 38.♿ Is this heading order correct (no level skipped)?
    <h1> → <h1> → <h3> → <h2> (a) No (b) Yes
39. 39.Which colour pair is easy to read? (a) white on dark blue (b) yellow on white (c) pink on red (d) red on green
40. 40.Which colour pair is easy to read? (a) blue on purple (b) red on green (c) light grey on white (d) dark grey on white

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