Before attempting this quiz you should:-
- Know how to synchronise Scratch blocks on two sprites
- Know how to add or edit costumes for Sprites
- Be shown how to set and change costumes
- Be taught about loops
This unit uses the following code blocks
Answer the following questions
Review with an adult
You must make sure you really understand what is happening.
Ask a teacher to help you look at any you got wrong and help you work out why. Perhaps discuss with a partner as well.
Go to Scratch
You will find all the code at https://scratch.mit.edu/projects/372373088/
Run a single section of code by clicking to the top instruction. Investigate how it works.
Run the whole code by pressing the Green Flag symbol.
Then have a go at modifying the timings so that all sentences are said for 3 seconds.
Then try making your own animation.
Think about what advantages there are using Repetition in the code. Discuss with a partner.
#1. Which best descibes what will happen to Scratch Cat when the Flag is clicked?
He will change costume so that means he will move.
Scratch cat will start in a walking position, but be still for 5 seconds
Scratch cat will then plead.
#2. Which code from the right hand section will run as Scratch Cat changes to the next costume?
The block ‘next costume’ occurs 5 seconds after the start.
In the other code snippet during those 5 seconds, it will make the cat :
- say ‘Will you help me find my friends’ for 3 seconds
- wait for 2 seconds
So the next costume block will be run at the same time as the other code is running
- say ‘Yes please’ for 2 seconds
#3. The dog costumes make it nod it’s head. For how many seconds will it nod?
It will wait for 7 seconds doing nothing.
The nodding will occur as the dog changes costume 20 times each after 0.1 seconds
20 x 0.1 seconds = 2 seconds.
So the dog will nod for 2 seconds
#4. Which command is happening when the dog nods its head?
There are 7 seconds before the dog starts to nod.
This is taken up with:
- 3 seconds of waiting
- 2 seconds saying ‘You want me to help?’
- 2 seconds of waiting
So as the dog nods its head, it will be saying ‘Of course I will!’