Unit 1 - Revision quiz

Which of the following is incorrect?

• Programming tells a computer what to do and how to do it. ​

• Computational thinking enables you to work out exactly what to tell the computer to do.

• Computational thinking enables you to work out exactly not what to tell the computer to do.

Getting computers to help us to solve problems is a two-step process:​

First, we think about the steps needed to solve a problem. ​

Second we:

• we use our communication skills to get the computer working on the problem

• use our technical skills to get the computer working on the problem

• we use our basic skills to get the computer working on the problem

• we use our technical skills not to get the computer working on the problem

What is computational thinking? Which of the following is incorrect?

• Its about what: To solve problems using computational thinking

• Why: Before computers can solve a problem the problem must be understood

• How: Understand and use the 4 elements on computational thinking in order to solve problems

• Who: Before computers can solve a problem the problem must be understood

Flow charts and pseudocode are:

• Types of algorithm

• Types of variable

• Types of reserved word

• Types of datatype

Which of the following best describes decomposition?

• Breaking a complex problem down into more manageable tasks.

• Focusing on the more important information only, ignoring the relevant detail.

• Looking for similarities among and within problems.

• Developing a step by step solution to a problem or the rules to follow to solve the problem.

Which of the following best describes abstraction?

• Breaking a complex problem down into more manageable tasks.

• Focusing on the more important information only, ignoring the relevant detail.

• Looking for similarities among and within problems.

• Developing a step by step solution to a problem or the rules to follow to solve the problem.

Which of the following best describes algorithms?

• Breaking a complex problem down into more manageable tasks.

• Focusing on the more important information only, ignoring the relevant detail.

• Looking for similarities among and within problems.

• Developing a step by step solution to a problem or the rules to follow to solve the problem.

Which of the following best describes pattern recognition?

• Breaking a complex problem down into more manageable tasks.

• Focusing on the more important information only, ignoring the relevant detail.

• Looking for similarities among and within problems.

• Developing a step by step solution to a problem or the rules to follow to solve the problem.

In order to draw a basic horse, we need to know that it has a tail, hair and eyes. These characteristics are relevant. We don't need to know what sound a horse makes or that it likes apples. Is this:

• pattern recognition

• Decomposition

• Abstraction

• An algorithm

To find patterns in problems we look for things that are the same (or very similar) in each problem.​

Can you remember that there were two different methods for baking the cakes in the picture in the lecture notes? Which of the three was not common to both cakes.

• Preheat oven

• Bake it

• Whisk butter and sugar

• Mix in eggs