Edexcel GCSE Computer Science Topic 3 b

Edexcel GCSE Computer Science Topic 3 b

3rd Grade

27 Qs

quiz-placeholder

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Edexcel GCSE Computer Science Topic 3 b

Edexcel GCSE Computer Science Topic 3 b

Assessment

Quiz

Computers

3rd Grade

Medium

Created by

Pete Dring

Used 35+ times

FREE Resource

27 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sound waves must be samples to create digital sound. A sample is...

a measure of amplitude at a point in time

the number of samples taken per second

the file size of an image

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When recording sound, the number of samples recorded per second is called the:

sample rate

sample resolution

colour depth

File size

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To calculate the size of a sound file:

colour depth * resolution

sample rate * sample resolution * length in seconds

number of samples * sample rate

sample resolution squared

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Increasing the sample rate of a recording will result in...

Higher-quality sound recording

Increased file size

Better compression

Higher colour depth

Increased amplitude

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

how many bits are in 2 kilobytes?
2
2 x 1024 x 8 = 16384
2 x 1024 = 2048

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A byte is
8 bits
4 bits

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In computing, a bit is
8 bytes
a single    0 or 1     on or off

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