Answer:
Tangible items or pictures used by scientists to represent invisible processes are called <u><em>Scientific Models</em></u>
Explanation:
Scientific models can be both physical or non-physical and help to represent a theory or natural phenomenon. An example of a physical scientific model cab be the globe or an Orrey (model of the solar system)
Non-Physical scientific models consist of mathematical models or even economic models that can help to predict something or clearly present a theory.
A scientific model helps to present and explain an idea and apart from just students and it can be equally useful for professionals.
Answer:
b. zero if either expectation to succeed or the perceived value of a goal is zero.
Explanation:
Expectancy x value theory also known as expectancy-value model of expectation asserts that the relationship between value and expectation is multiplicative, that is, if the value and individual puts on a task is zero, that individual will not feel motivated to achieve that task. Conversely, if the value is high but expectation to completing the task is zero, the individual will also not be motivated to complete the task.
