Year 8 Quiz 1

What is the Decimal representation for the binary number 00111100

• 60

• 61

• 62

• 63

What is an algorithm?

• An algorithm is a type of programming language.
• An algorithm is step-by-step instructions for solving a problem.

• An algorithm is a type of computer virus.
• An algorithm is a type of hardware component.

What is a condition?

• A question that returns true or false

• The method of testing the values input match a set criteria

• Code that repeats for a specific number of times

• A mathematical equation

What would be output by the following code?

• Hello

• Goodbye

• Error

• Nothing

Answer explanation

The Selection statement checks the condition: number is larger than 5.

Number is set to 6, therefore it is larger than 5. This means the selection is TRUE and "Hello" is output.

Why is the sequence important when writing an algorithm?

• The sequence has no impact on the algorithm
• The sequence determines the order of operations and impacts the final result.
• The sequence can be random and still work
• The sequence is only important for visual appeal