wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Data Representation - Keywords

Total questions: 12

Worksheet time: 5mins

Name
Class
Date
1.

Colour depth is...

a)

a) The size of the image in pixels, width * height

b)

a) The number of bits per pixel used to represent the colour

c)

a) A single dot in an image

2.

Amplitude is…

a)

The height, loudness of the sound

b)

The number of samples taken in a second

c)

is a code for representing English characters as numbers

3.

A sample is…

a)

The number of samples taken in a second

b)

A measure of amplitude at a point in time.

c)

The number of bits per pixel used to represent the colour

4.

Bit depth is…

a)

Size of the image in pixels, width * height

b)

The number of bits used per sample

c)

A measure of amplitude at a point in time.

5.

Sample rate is…

a)

The height, loudness of the sound

b)

A single dot in an image

c)

The number of samples taken in a second

6.

A character set is..

a)

a defined list of characters recognised by the computer

b)

is a code for representing English characters as numbers

c)

A base 2 number system

7.

Which of the following is a single dot in an image?

a)

Sample

b)

ASCII

c)

Pixel

8.

Which of the following is a code for representing English characters as numbers?

a)

ASCII

b)

Pixel

c)

Sample rate

9.
Quality of an image depends on:
a)
Resolution
b)
Metadata
c)
Screen size
d)
Computer's speed
10.
Resolution is measured in:
a)
Pixels per mm or per inch
b)
Print size.
c)
Milimeters.
d)
Bytes.
11.
The following is true about sampling rates:
a)
They measure a number of snapshots of sound taken per second.
b)
They are not as important as bit rates.
c)
They are different for every song, depending on its loudness.
12.
The following is a correct order of units of storage from lowest to highest:
a)
a bit, a nibble, a byte, a kilobyte, a megabyte, a gigabyte, a terabyte
b)
a bit, a byte, a nibble, a kilobyte, a megabyte, a gigabyte, a terabyte
c)
a bit, a nibble, a byte, a megabyte, a kilobyte, a gigabyte, a terabyte
d)
a byte, a bit, a nibble, a megabyte, a kilobyte, a gigabyte, a terabyte