WorksheetsYear 9 Revision - Binary
Total questions: 20
Worksheet time: 11mins
Identify the unique digits used in binary
1, 2.
0, 1.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
Identify the number system that we use in everyday life.
Binary
Denary
Decimal
Hexadecimal
Identify the two items that computers use binary to represent.
Data and Instructions
Numbers and Letters
Temperature and Pressure
Thoughts and Feelings
Identify a reason for using hexadecimal numbers
Takes up less storage space.
Requires less bits.
Useful shorthand for humans to understand long binary numbers.
Quicker for a computer to process.
How many bits are represented by a single hexadecimal digit
8
4
2
1
Identify the binary representation of 76
0100 1100
1100 0100
0011 0010
0100 1101
Identify the binary representation of 127
1111 1110
1110 1111
1111 0111
0111 1111
Identify the key term from this definition:
"Tiny dot of colour in a bitmap image"
Bit depth
Colour depth
Pixel
Sample
Besides the width x height (pixels), identify the other way of stating the size of an image.
Megabits
Megapixels
Microbits
Micropixels
Identify the key term from this definition:
"Number of bits used to store the colour value".
Bit depth
Bit Rate
Colour Depth
Sample Rate
Identify the expression used to calculate the approximate file size of an image file.
Width x Height x Sample Rate
Sample Rate x Bit Depth x Duration
Sample Rate x Colour Depth
Width x Height x Colour Depth
Identify the correct meaning of RGB
Rapid Gerbil Battle
Red Green Blue
Royal Grande-Bretagne
Restricted Group Bitmap
Identify the purpose of an Analogue to Digital Converter
To convert digital signals to sound waves
To convert sound waves to bitmaps
To convert sound waves to digital signals
To convert digital signals to bitmaps
Identify the key term from this definition:
"Number of samples taken in one second".
Bit depth
Bit rate
Sample Rate
Sample Depth
Identify the key term from this definition:
"Number of bits used to store the sample"
Bit depth
Bit rate
Sample depth
Sample rate
State the expression to calculate the approximate file size of a sound file.
Sample Depth x Bit Rate x Duration
Sample Rate x Bit Depth x Duration
Sample Rate x Colour Depth x Duration
Sample Rate x Bit Rate
Identify the key term from this definition:
"Process of assigning a number to a character"
Character Translation
Character Mapping
Character Encoding
Character Conversion
Identify the number of characters represented by ASCII
26
52
70
128
Identify the key term from this definition:
"Modifying a file to reduce its size"
Data Abstraction
Data Bitmapping
Data Compression
Data Deletion
Identify the compression format associated with image files.
TXT
MP3
JPG
BMP
