Images and Video Worksheet

Problem 1

Find an image and copy it to the 'images' folder that was included in your starter files for this course (the starter files were all put in a folder named 'web-programming'). Then add an IMG element below that displays the image. Make sure to set the alt attribute, and you may set the width attribute if you like.

Problem 2

Why is it important to use small file sizes for images (image files that are small in kilobytes)?

It can significantly reduce the website loading speeds if you have large picture files.

Problem 3

What types of images should be saved as .jpg files, and what types of images should be saved as .png files?

.jpg should be used on images that do not have crisp lines or \text.
.png should be used for images like logos that have sharp lines, illustrations or charts.

Problem 4

Most web browsers display images at what resolution (how many ppi)?

72 pixels per inch

Problem 5

If you want an image to have a transparent background, what type of image should it be (what file extension would you use)?

.png

Problem 6

What are responsive images?

Images that have the width attribute set to a % so it scales with the screen.

Problem 7

Find another image and copy it to the 'images' folder. Then add an IMG element below that displays the image. Make sure to set the width and alt attributes. Turn the image into a link by nesting it within an A element. Clicking on the image should open up google.com in a new browser tab.

Problem 8

Find a video on YouTube that you like, and embed it into this page.