Binary Bits ‘n’ Bobs

The Binary Number System

Concept Exploration

Learning Missions

Binary Bits & Bobs – Lesson 1 Review KS3

Adding Binary Numbers

Concept Exploration

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Binary Bits & Bobs – Lesson 2 Review KS3

ASCII Characters

Concept Exploration

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Binary Bits & Bobs – Lesson 3 Review KS3

Concept Exploration

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Binary Bits & Bobs – Lesson 4 Review KS3

Representing Sound

Concept Exploration

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Binary Bits & Bobs – Lesson 5 Review KS3

Binary Bits & Bobs – Revision Quiz KS3

Binary Bits and Bobs – End of Unit Assessment KS3

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Binary Bits & Bobs – Lesson 5 Review KS3

Binary Bits ‘n’ Bobs Representing Sound Binary Bits & Bobs – Lesson 5 Review KS3

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Question 1 of 15

1. Question
What description of sound is best described as being ‘pure sound waves, which are continuous over time’?
- Analogue Sound
- Digital Sound
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Question 2 of 15

2. Question
What description of sound is best described as being ‘sound sampled at set intervals’?
- Analogue Sound
- Digital Sound
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Question 3 of 15

3. Question
Which definition best describes “Sampling”?
- Recording the same snippet of sound, repeatedly.
- Measuring the height of a sound wave, at set intervals and recording the measurements as a binary number.
- Recording the volume of sound, at set intervals and recording the measurements as a binary number.
- Recording snippets of different sounds, repeatedly.
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Question 4 of 15

4. Question
What is the effect of increasing the sample rate?
- Reduction in sound quality and a larger file size.
- Improvement in sound quality and a reduction in file size.
- Reduction in sound quality and a smaller file size.
- Improvement in sound quality and a larger file size.
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Question 5 of 15

5. Question
What is digital processing?
- The act of recording snippets of sound over time.
- Applying maths to a sound file to increase the amplitude of the sound.
- Applying calculations to the binary values in a sound file, in order to alter how it sounds.
- Removing data from a sound file in order to reduce the size of the file.
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Question 6 of 15

6. Question
When a sound sample is taken…
- the sound is stored on the hard disk.
- the sound is changed into a binary number.
- the sound is recorded using a microphone.
- the sound is changed into a decimal number.
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Question 7 of 15

7. Question
A sound sample taken by the computer is stored as a binary number.
- True
- False
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Question 8 of 15

8. Question
An advantage of digital sound …
- can remove unnecessary sounds(noise)
- can easily edit the sound
- can combine digital sounds easily
- all of these
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Question 9 of 15

9. Question
Digital sound can be created and played on any electronic device which has a microphone, speaker and can run sound processing software.
- True
- False
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Question 10 of 15

10. Question
The number of samples that are created each second is know as the …
- sample block
- sample pace
- sample rate
- sample size
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Question 11 of 15

11. Question
The sample rate (sample taken per second) is measured in..
- Mbits
- Ohms
- Hertz
- Metres
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Question 12 of 15

12. Question
The computer can store digital sound by taking thousands of _________ per second.
- readings
- samples
- measurements
- items
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Question 13 of 15

13. Question
An analogue sound signal is….
- a single frequency
- made up of lots of binary numbers
- made up of lots of samples
- a continuous signal
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Question 14 of 15

14. Question
An an analogue-to-digital converter…..
- converts the microphone signal to a sound file.
- converts the binary sound to an analogue signal.
- converts the microphone signal to a signal for the speakers.
- converts the microphone signal to binary numbers.
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Question 15 of 15

15. Question
The more samples that are made per second will improve the quality of the digital sound.
- True
- False
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