Question 1:
What does the slope of a position-time graph represent?
Explanation: The correct answer is A) Velocity. The slope of a position-time graph represents the velocity of an object. It is calculated as the change in position divided by the change in time. A steeper slope indicates a higher velocity, while a flatter slope indicates a lower velocity.
Question 2:
What does the area under a velocity-time graph represent?
Explanation: The correct answer is A) Displacement. The area under a velocity-time graph represents the displacement of an object. It is calculated as the product of the time interval and the average velocity during that time interval. The magnitude and direction of the displacement can be determined from the area.
Question 3:
What does a horizontal line on a velocity-time graph indicate?
Explanation: The correct answer is B) Constant velocity. A horizontal line on a velocity-time graph indicates that the object is moving with a constant velocity. The slope of a velocity-time graph represents the acceleration, so a horizontal line with zero slope indicates zero acceleration and thus constant velocity.
Question 4:
What does a straight line with a positive slope on a velocity-time graph indicate?
Explanation: The correct answer is B) Constant acceleration. A straight line with a positive slope on a velocity-time graph indicates that the object is experiencing constant acceleration. The slope represents the rate of change of velocity, and a positive slope indicates a constant increase in velocity over time, which corresponds to constant acceleration.
Question 5:
What does the slope of a velocity-time graph represent?
Explanation: The correct answer is C) Acceleration. The slope of a velocity-time graph represents the acceleration of an object. It is calculated as the change in velocity divided by the change in time. A steeper slope indicates a higher acceleration, while a flatter slope indicates a lower acceleration.