Revision Quiz

1. What is an algorithm?

• An action that causes something to happen.

• A list of steps to finish a task.

• A regular pattern of changes.

• The action of doing something over and over again

Sequencing means a set of logical steps carried out in order. Look at the pictures and put them in the correct order.

• 1, 2, 3, 4

• 2, 3, 1, 4

• 3, 2, 4, 1

• 4, 3, 2, 1

What is the name of loop used in this algorithm?

• Repeat loop.

• Nested loop.

• Loophole.

• Coding loop.

Answer explanation

When you put a loop inside of another loop, we call that a nested loop.

What does instructions mean in coding?

• An action that causes something to happen.

• To write code, or to write instructions for a computer.

• An order given to a computer processor by a computer program to perform a task.

• The action of doing something over and over again.

How do I go from point A to point B?

• turnRightBy90Degrees

  moveForwardBy60Pixels

• turnLeftBy180Degrees

  moveForwardBy50Pixels

• turnLeftBy45Degrees

  moveForwardBy60Pixels

• turnRightBy180Degrees

  moveForwardBy60Pixels

Find the pattern and complete the loop.

• 1. has

  2. she

• 1. her

  2. see

• 1. her

  2. she

• 1. she

  2. she

This algorithm has a bug. Find the code that works so the squirrel can find its food.

• 
• 
• 
• 

An angle is generally measured in..

• Celsius

• Fahrenheit

• Degrees

• Centimeter

When a circle is divided into four equal parts, each part is called the quarter of a circle. What is the degrees for a quarter of a circle?

• 45 degrees

• 180 degrees

• 360 degrees

• 90 degrees

Please write instructions on how to draw the following shape.

• turnRightBy90Degrees

  moveForwardBy50Pixels

  turnLeftBy90Degrees

  moveForwardBy10Pixels

  turnRightBy90Degrees

  moveForwardBy40Pixels

  turnRightBy90Degrees

  moveForwardBy50Pixels

• turnRightBy45Degrees

  moveForwardBy40Pixels

  turnRightBy45Degrees

  moveForwardBy10Pixels

  turnRightBy90Degrees

  moveForwardBy40Pixels

  turnRightBy90Degrees

  moveForwardBy50Pixels

• turnRightBy45Degrees

  moveForwardBy40Pixels

  turnRightBy45Degrees

  moveForwardBy10Pixels

  turnRightBy90Degrees

  moveForwardBy50Pixels

  turnRightBy90Degrees

  moveForwardBy40Pixels

• turnRightBy45Degrees

  moveForwardBy50Pixels

  turnRightBy45Degrees

  moveForwardBy10Pixels

  turnRightBy90Degrees

  moveForwardBy40Pixels

  turnRightBy90Degrees

  moveForwardBy50Pixels