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02 - Scratch Programming

 1. Scratch is a beginner's visual (drag drop) programming tool that allows you to create interesting things including games.

  TRUE

  FALSE

 2. Coloured blocks of instructions are joined together to create programs. These are called:

  block-bits

  scripts

  mits

  scratchets

 3. Blocks (scripts) tell the characters on the screen what to do. Characters are called:

  mites

  bytes

  scratchites

  sprites

 4. What is the definition of a variable?

  Something (e.g. a value like a name or number) that is stored by the computer but the value changes.

  Something that cannot be changed

  Something used by the character only

  Something that is not stored but the value changes

 5. What is an IF Statement?

  inputting raw data into a computer

  a decision made by a computer to chose an outcome

  something that can be stored but changed

  an outcome produced by the computer

 6. What is a loop?

  A loop is when you identify an error in your code and fix it

  A loop allows a program or block of code to run continuously until told otherwise.

  A loop is the same thing as a variable

  A loop is when end the program unexpectedly

 7. What is an algorithm? (can you write algorithms in scratch?)

  An algorithm is just a sequence of instructions telling the computer what to do!

  None of the above

  An algorithm is a complex piece of code that cannot be written or implemented in scratch

  An algorithm is basically an if statement inside a variable.

 8. Algorithms are:

  Only used in Maths

  Only used in Computer Science

  All around us - we use them all the time without realising it!

  Only used in the creation of robots or sprite movement

 9. An example of an algorithm is:

  An object that can be moved such as a sprite

  Score

  None of the above

  The steps involved in the process of 'making a cake'

 10. The three programming constructs are:

  Selection (if statements), Iteration (loops) and Sequence (series of steps)

  None of the above

  Sequence, Collision Detection and Variable creation

  Statements (series of steps), spritation (creating sprites) and variableation (making variables)

 11. Several statements joined together in an order is called:
scratchsequence.png

  sequence

  None of the above

  iteration

  selection

 12. When programming it is important to 'decompose' this means to:

  delete problems and try to start without them

  break problems into bigger problems

  break problems into small parts, and solve each part

  None of the above

 13. Selection is the use of if statements to make a __________________

  sprite sequence

  help menu

  command

  decision which produces a specific output depending on the input

 14. Repeating a sequence or a statement more than once until a condition is met is called:
scratchforeverloop.png

  maintenance (maintaining the program)

  selection (if statements)

  sequence (series of statements)

  iteration (loop)

 15. A statement which can either be true or false is known as a..?
scratchboolean.png

  variable

  boolean

  option

  question