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T4 computer science worksheet computer science
Typology: Summaries
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Name: ..................................................................................................... Class: ......................
Jasmine plays a game on her computer screen. A moving balloon appears on the screen, and she has to pop the balloon by clicking on it with the mouse. When the balloon is popped another one appears. The aim of the game is to pop as many balloons as possible in one minute.
The flow diagram for the game is shown below.
(a) Complete the statement at A.
(b) Complete the statement in B. (c) Complete the statement at C. (d) Complete the line and label at D. (e) Add a flowchart box at the bottom to display the player’s score.
No
Display new balloon
Display new balloon
Balloon^ Yes touched?
balloonScore = balloonScore + 1 ✔️
No
End
Start
Time = 0
Output balloonScore ✔️
An amusement park operates a smartcard system for visitors. When they enter the park, a visitor chooses the amount they wish to put on their card. Rides cost differing amounts, and to get through a barrier for a particular ride, the visitor inserts their card. The balance on the card is checked. If there is enough money on the card, the balance is updated and displayed and the barrier opens. If there is not enough money left on the card, the current balance is displayed with a message “Not enough for this ride – need to top up”.
Complete the flowchart for the barriers in the amusement park.
For each of the flowcharts in tasks 1-4, identify where sequence, selection and iteration have been used. Note that some of the flowcharts do not use all three of these.
Selection is used where a decision is made. ✔️
yes
no
Output “You don’t have enough cash”
Output balance
End
Open door
balance
Show balance
Has enough for ride?
Insert card
Start
