Final answer:
The equation 'Need for action = Desired performance - Actual performance' is true as it illustrates the concept of control in the context of goal setting and performance management. Perceived control over our lives is critical for stress management and achieving desired outcomes. Additionally, the level of confidence in one's abilities is termed self-efficacy.
Step-by-step explanation:
The statement about control, Need for action = Desired performance - Actual performance, can be considered true within the context of business and personal development. In this equation, the need for action is the gap that exists when actual performance falls short of the desired performance. This concept is important for setting goals and making necessary adjustments to meet those goals. To influence outcomes and enact control in our lives, we must be able to identify the discrepancy between where we are and where we want to be. This understanding of control ties into the concept of perceived control, which plays a significant role in how we handle stress, make decisions, and achieve better health and happiness.
When considering an external force, the definition provided is also true: an external force is indeed generated outside the system of interest and acts on an object within the system. This is a fundamental concept in physics that has cross-disciplinary applications.
Furthermore, the level of confidence in one's own abilities is known as self-efficacy, and this self-belief is crucial for exerting control over the demands of our lives and managing stress.
Last but not least, the statement about the position vs time graph is false. A speeding up object would not be represented by a straight line on such a graph. Instead, the graph would show a curve that gets steeper over time, reflecting the increasing velocity of the object.