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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:

  mits

  scratchets

  scripts

  block-bits

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

  sprites

  mites

  scratchites

  bytes

 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 that is not stored but the value changes

  Something used by the character only

 5. What is an IF Statement?

  inputting raw data into a computer

  something that can be stored but changed

  an outcome produced by the computer

  a decision made by a computer to chose an outcome

 6. What is a loop?

  A loop is when end the program unexpectedly

  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

 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!

  An algorithm is basically an if statement inside a variable.

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

  None of the above

 8. Algorithms are:

  Only used in the creation of robots or sprite movement

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

  Only used in Maths

  Only used in Computer Science

 9. An example of an algorithm is:

  Score

  None of the above

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

  An object that can be moved such as a sprite

 10. The three programming constructs are:

  None of the above

  Sequence, Collision Detection and Variable creation

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

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

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

  selection

  sequence

  None of the above

  iteration

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

  break problems into small parts, and solve each part

  delete problems and try to start without them

  break problems into bigger problems

  None of the above

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

  help menu

  sprite sequence

  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

  selection (if statements)

  iteration (loop)

  sequence (series of statements)

  maintenance (maintaining the program)

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

  variable

  boolean

  option

  question


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