Year 7 End of Unit test: Data Representation

Which of the following is NOT one of the four principles of computational thinking?

• Decomposition
• Abstraction
• Programming
• Pattern Recognition

Which one of the following types of data can be represented using binary?

• Characters
• Images
• Sound
• All of the above

What is the name of this symbol in a flowchart?

• Input
• Output
• Decision/Question
• Process

What command is this shape for?

• The beginning or end of an algorithm
• Data that is going in as input or coming out as output
• Processing something - a calculation or storing something into a variable
• Often a YES / NO or TRUE / FALSE

What command is this shape for?

• The beginning or end of an algorithm
• Data that is going in as input or coming out as output
• Processing something - a calculation or storing something into a variable
• Often a YES / NO or TRUE / FALSE

What command is this shape for?

• The beginning or end of an algorithm
• Data that is going in as input or coming out as output
• Processing something - a calculation or storing something into a variable
• Often a YES / NO or TRUE / FALSE

How would the decimal number 11 be written as a binary number?

• 1100
• 0011
• 1011
• 1101

What two digits are used in binary?

• 0 & 2 
• 1 & 2
• 0 & 1
• 1 & 1

The binary number
1010 
is the same as decimal ...

• 5
• 6
• 10
• 1010

A graphic created for a computer game contains pixels with  a bit depth of TWO BITS (as shown here)
How many colours can there be in each pixel?

• 2
• 3
• 4
• 8