Page 4 - Ones and Zeros 3 (Workbook)

1 Technology in Our Lives
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Lesson 1

Images and Pixels

Match the boxes.
a This is a colourful square
1 digital picture which helps make up a picture.

b
2 pixel This is what you do when you
take a closer look at a picture.

3 zoom in c
This can be stored on
electronic devices.

4 zoom out d

This is what you do when you
look at a picture from further away.

Lesson 2

Image Resolution

Choose the correct answer.
1. A digital picture with a lot of pixels has a image quality.

a. better b. worse

2. The number of pixels a picture has is called its .
a. resolution b. megapixel

3. A megapixel is .

a. one thousand pixels b. one million pixels
4. How many pixels are there in the picture on the right?

a. 16x25 b. 7x16
5. What is the resolution of the picture?

a. 400 b. 112

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