Question

In a home's central heating system, when the room temperature measured by the thermostat
reaches a set value, the thermostat sends a message to the heater, and the heater switches off.
These actions are an example of??

Answer 1

Answers:
1. a model.
2. feedback.
3. input.
4. a process.

I think it's 4?

Answer 2

1. A group of parts that work together is called a (1 point)
(0 pts) technology.
(0 pts) process.
(1 pt) system.
(0 pts) feedback.
1 /1 point
2. In a home's central heating system, when the room temperature measured by the thermostat
reaches a set value, the thermostat sends a message to the heater, and the heater switches off. These
actions are an example of: (1 point)
(0 pts) a model.
(0 pts) feedback.
(0 pts) input.
(1 pt) a process.
1 /1 point
3. Which of the following statements about models is true? (1 point)
(0 pts) Scientists use models to understand how systems work.
(0 pts) If an inaccurate scale model is used to create a structure, the actual structure will likely
have problems.
(0 pts) A diagram is one example of a scientific model.
(1 pt) All of these statements are true.
1 /1 point
True/False
4. Making models involves creating representations of complex objects or processes to help people
study and understand things that cannot be observed directly. (1 point)
(1 pt) true
(0 pts) false