2.1 Algorithms CW1-4

Define the term computational thinking

• Using a computer
• Developing an algorithm to solve a problem
• Making a computer use artificial intelligence
• Google is computational thinking

Which of the following is not a component of computational thinking?

• Abstraction
• Typing
• Decomposition
• Algorithmic thinking

Define the term abstraction within computational thinking?

• Adding numbers together
• Taking a real world problem and designing a computer program that exactly replicates every part of that problem in the computer
• Performing multiple calculations on a list of variables
• Representing real world problems in a computer program, using symbols and removing unnecessary elements

Define the term decomposition with computational thinking

• The breaking down of a program until it no longer exists
• The creation of music that can be played on a computer
• The breaking down of a problem into smaller problems
• The breaking down of waste to make compost

Identify which statement describes algorithmic thinking

• Thinking like a computer
• Writing binary numbers
• Identifying the steps involved in solving a problem
• Identifying what problems need to be solved

Identify the correct definition for 'algorithm'

• A problem
• A solution to a problem
• The steps that are taken to solve a problem
• The words to enter when typing

The following algorithm should take as input and add together two numbers, outputting the result.
Identify the correct algorithm

• num1=input("Enter the first number")
  num2=input("Enter the second number")
  num3=num1+num2
  print(num3)
• num1=input("Enter the first number")
  num2=input("Enter the second number")
  num3=num1+num2
  print(num3)
• num1=input("Enter the first number")
  num3=input("Enter the secon number")
  num3=num1+num2
  print(num3)
• num1=input("Enter the first number")
  num2=input("Enter the second number")
  num3=num1+num2
  print(num2)

The following algorithm should take as input a number, and output the 12 times table for that number.
Identify the correct algorithm

• number=input("Enter a number")
  for x = 1 to 12
  print(number*x)
  next x
• number=input("Enter a number")
  for x = 0 to 12
  print(number * x)
  next x
• number=input("Enter a number")
  for x = 1 to 12
  print(number X x)
  next x
• number=input("Enter a number")
  for x = 1 to 12
  print(number*number)
  next x

The following algorithm should take as input two numbers, add them together, multiply the answer by 11, add 4, then divide by 2. It should output the result. Identify the correct algorithm.

• number = input(“Enter a number”)number = input(“Enter the second number”)final = (((number + number) * 11) + 4) / 2 print (final)
• number2 = input(“Enter the second number”)final = (((number + number2) * 11) + 4) * 2 print (final)
• number = input(“Enter a number”)number2 = input(“Enter the second number”)final = number + number2 +4 *11 / 2 print (final)
• number = input(“Enter a number”)number2 = input(“Enter the second number”)final = (((number + number2) * 11) + 4) / 2 print (final)

What is a sequence

• Putting and executing instructions in order.

• A pattern of numbers.

• Instructions which a computer follows.

• A line of code