I recommend that you open another copy of this module in a separate
browser window and use the following links to easily find and view the imageswhile you are reading about them.
Images
Image A . Pseudocode for the program named ForeverLoop01.
Image B . Program code for the Scratch v1.4 version of the program named ForeverLoop01.
Image C . Program code for the Scratch v2.0 version of the program named ForeverLoop01.
Image D . Comparison between repeat and forever/if blocks.
Image E . Program code for the program named ForeverLoop02.
Image F . Pseudocode for the program named ForeverLoop02.
Image G . Pseudocode for the program named RepeatUntil01.
Image H . Program code for the program named RepeatUntil01.
Image I . Final screen output from the program named RepeatUntil01.
Image J . Blocks that can be used to create loop structures in v2.0.
General
background information
In an earlier module, I told you that any programming logic problem could be
solved using an appropriate combination of only three programming structures,none of which are complicated. The three structures are known generally as:
The sequence structure.
The selection or decision structure.
The loop, repetition, or iteration structure.
I have explained the sequence and selection structures and some of the loop
structures in earlier modules. I will continue to concentrate on the loopstructure in this module.
Preview
In this module, I will present and explain the following three Scratch
programs:
ForeverLoop01 - This program uses a
forever block in
conjunction with an if
block to
cause a sprite to move in a small circle while the space bar is pressed.
ForeverLoop02 - This program illustrates the creation of a
counter loop using a
forever block in conjunction with an
if block.
RepeatUntil01 - This program uses a
repeat until block to
cause a sprite to run in a small circle until the user presses the spacebar.
In addition, I will provide the specifications for a student-programming
project for you to demonstrate your understanding of what you learned from thethree programs listed above and from earlier modules.
Discussion and sample code
The program named ForeverLoop01
This program illustrates the use of a
forever block in conjunction
with an
if block. When the user
clicks the green flag, the program implements the pseudocode shown in
Image A .
If the space bar is pressed, the cat moves around the circumference of a
small circle, appearing to walk due to the visual effect produced by switchingbetween two images
(known in Scratch as costumes) . As explained in a
previous module,the two costumes were designed to produce the illusion of walking.
Program code for
the Scratch v1.4 version of the program named ForeverLoop01
The code for the older Scratch v1.4 version of this program is shown in
Image B .
Questions & Answers
differentiate between demand and supply
giving examples
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
When MP₁ becomes negative, TP start to decline.
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 •
Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 •
Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
ok
Shukri
how do you save a country economic situation when it's falling apart
Economic growth as an increase in the production and consumption of goods and services within an economy.but
Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
thank you so much 👍 sir
Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has
The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50.
A,Calculate quantities of x and y which maximize utility.
B,Calculate value of Lagrange multiplier.
C,Calculate quantities of X and Y consumed with a given price.
D,alculate optimum level of output .
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product