2024-25 - Y7 - Flowcharts & Flowol - Quiz 2

Which of these best describes sequencing?

• The time it takes to think computationally
• The order in which steps are carried out
• The process of repeating a number of steps
• The length of a set of steps

Which of these best describes why sequencing is important?

• To ensure that a set of steps only takes a specified amount of time to run
• To ensure that certain steps are ignored
• To ensure that a set of steps produce the intended result
• To ensure that a set of steps doesn't run at all

Which of these is another name for a set of steps that solve a problem?

• Iteration
• Selection
• Subroutine
• Algorithm

Which of these is a graphical way of representing an algorithm?

• Flowchart
• Table
• Paragraph
• Chart

Look at the flowchart shown. The flowchart shows the control system for a zebra crossing. The control system should make the lights flash on and off repeatedly but it is not working. Why is this?

• There isn't a stop symbol
• It doesn't use iteration
• The lights are only ever turned on
• The delay is too long

Look at the flowchart shown. The flowchart shows the control system for a zebra crossing. Which symbol are the actions 'Turn Light on' and 'Turn Light off' found in?

• Terminator symbol
• Process symbol
• Input/Output symbol
• Decision symbol

Look at the flowchart shown. The flowchart shows the control system for a zebra crossing. Which symbol are the 'Delay 2' actions found in?

• Terminator symbol
• Process symbol
• Input/Output symbol
• Decision symbol

Look at the flowchart shown. The flowchart shows the control system for a zebra crossing. In order for the lights to flash continuously what is implemented on the flowchart?

• A decision
• A termination
• An iteration loop
• An input

True or False: A flowchart does not need to have a terminator Start symbol.

• True
• False

True or False: A flowchart does not always need to have a termintor Stop symbol.

• True
• False