Modelling - Lesson 1 - Introduction

What is a model?

• A type of simulation

• A computer program

• A mathematical equation

• A representation of a physical system or process

Answer explanation

A model is a representation of a physical system or process, making it the correct choice among the options provided.

What is the purpose of simulations in computer modelling?

• To confuse users

• To replace real-world experiments

• To slow down the process

• To complicate the system

Answer explanation

To replace real-world experiments

What is computer modelling?

• Using software abstractions to represent a real or virtual problem

• Creating physical models with clay

• Drawing diagrams on paper

• Building actual components

Answer explanation

Computer modeling involves using software abstractions to represent real or virtual problems, allowing for simulations and analysis without physical components.

What is the core of a model often represented as?

• Audio recordings

• Mathematical or logical function

• Visual images

• Text descriptions

Answer explanation

The core of a model is often represented as a Mathematical or logical function, not as audio recordings, visual images, or text descriptions.

How are scenarios used in models?

• To simulate different conditions or situations

• To slow down the simulation

• To confuse users

• To limit the model's capabilities

Answer explanation

Scenarios are used in models to simulate different conditions or situations, allowing for a more comprehensive analysis of the model's behavior.

What is an example of using models in engineering?

• Using trial and error methods

• Ignoring simulations completely

• Creating complex designs without models

• Testing parts without physical manufacturing

Answer explanation

Testing parts without physical manufacturing is an example of using models in engineering, allowing for virtual simulations and analysis before actual production.

How were models used during the COVID-19 pandemic?

• To predict the rate of infection and inform government policy

• To create chaos and confusion

• To hide information from the public

• To delay decision-making processes

Answer explanation

Models were used during the COVID-19 pandemic to predict the rate of infection and inform government policy, not to create chaos, hide information, or delay decision-making processes.

How can the thermostat model be coded in Python?

• Using a class with complex inheritance

• Using a dictionary with multiple keys

• Using a loop with random numbers

• Using a function with actual and target temperature as arguments

Answer explanation

Using a function with actual and target temperature as arguments is the correct choice for coding the thermostat model in Python.

Why are simulations important in computer modeling?

• To replace real-world experiments

• To confuse users

• To speed up the process

• To complicate the system

Answer explanation

To replace real-world experiments