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Coding - Introduction
What would you program a robot to do?

Coding - Introduction

This Computer Science quiz is called 'Coding - Introduction' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.

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We have looked at examples of algorithms. Once you have your algorithm written down you have a simple plan. It has steps in it. But computers and robots cannot understand what you have written down. They only understand codes. These codes can be words, letters or numbers. They are like a special language. So you have to take each step in your algorithm and turn it into code. Codes make up units. Then we use these units when building scripts. Scripts can run programs. Programs have a lot of code to make a computer do a job.

1.
Adil wants to control a toy robot moving round a room. Adil writes this step in his algorithm:

Turn right at the wall.

What could be the code for this?
Forward. Wall? Yes - Left. No - Right
Right. Wall? Yes - Stop. No - Back
Forward. Wall? Yes - Right. No - Forward
Right. Wall? Yes - Forward. No - Stop
The toy robot must keep going until it reaches the wall, and then turn right
2.
Code can use symbols and numbers. What else could be a code for: Up 3 squares?
→3●
↓3■
↑3■
↑3▲
Can you use these symbols to write down the code for: Down 4 squares?
3.
A lot of code to do a job is called a _______.
Story
History
Algorithm
Program
You can program computers to do different jobs
4.
Which one of these could be a code?
Go round the corner and walk forward five paces
The car turned right and then drove for five miles
Alice turned round and saw five birds sitting on a fence
Turn→5
What sort of code have you used?
5.
What is computer code?
A special language
A foreign language
A list of passwords
A list of shapes
One language used to write computer code is called Scratch. Have you used Scratch?
6.
To make a computer work, algorithms have to be turned into ____.
Sentences
Paragraphs
Code
Stories
The code used to create web pages is called HTML
7.
Sasha writes a program to draw a square. The program is made up of ____.
Rhymes
Code
Poems
Songs
Code can include words, but it is not like ordinary English
8.
An algorithm says: Go up 3 squares to the top of the screen.

Which one of these could be code for this?
Down 3 squares
Up 3 squares
Right 3 squares
Left 3 squares
Code is a series of very simple instructions
9.
Adil wrote code to control a toy robot. Adil was ___________ the computer to move round the room.
Drawing
Programming
Shaping
Colouring
What could you program a toy robot to do?
10.
Code is written in short steps. A series of these steps in code is called a ______.
Story
Algorithm
Script
Text
An algorithm has steps, but they are not written in code
Author:  David Bland

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