# Good vibrations

In this lesson, we will familiarise ourselves with the basic concepts necessary for understanding any analogue to digital conversion; samples, sampling rate, and sample size.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Good Vibrations

Helps you to assess your knowledge and understanding of analogue and digital sounds.

Q1.Turning to Bits Your local council has installed a public access WiFi system. It monitors the quality of the service by measuring the strength of the WiFi signal at 20 locations. Every 10 minutes, it receives a sequence of 3 bits from each location. This is essentially a number that indicates how strong the signal is: 000 001 010 011 100 101 110 111 (000 being low signal and 111 being high signal) How many bits are received from each location in one day? You may need to use a calculator for this question.

1/5

Q2.The measurements(3 bits) received from each location are called ...........................

2/5

Q3.The number of bits in each measurement is called...................................

3/5

Q4.How often measurements are taken is called .....................

4/5

Q5.Which component is used to generate sound ?

5/5

Quiz:

# Good Vibrations

Helps you to assess your knowledge and understanding of analogue and digital sounds.

Q1.Turning to Bits Your local council has installed a public access WiFi system. It monitors the quality of the service by measuring the strength of the WiFi signal at 20 locations. Every 10 minutes, it receives a sequence of 3 bits from each location. This is essentially a number that indicates how strong the signal is: 000 001 010 011 100 101 110 111 (000 being low signal and 111 being high signal) How many bits are received from each location in one day? You may need to use a calculator for this question.

1/5

Q2.The measurements(3 bits) received from each location are called ...........................

2/5

Q3.The number of bits in each measurement is called...................................

3/5

Q4.How often measurements are taken is called .....................

4/5

Q5.Which component is used to generate sound ?

5/5

# Lesson summary: Good vibrations

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance