Final answer:
The statement regarding the position vs time graph for an object speeding up being a straight line is false; it should be a curved line. The market revolution had a significant true impact on the U.S. economy and society. Lastly, it is true that a pebble creating a ripple in water is an example of a pulse wave.
Step-by-step explanation:
Understanding the Position vs Time Graph
When considering the motion of an object and how it's depicted on a graph, the statement that the position vs time graph of an object that is speeding up is a straight line is false. If an object is speeding up, its velocity is increasing over time, which would be represented by a curved line on a position vs time graph. The curve would typically be steeper (or more inclined) as you move along the x-axis (time), indicating a higher slope and thus higher velocity. A straight line would instead indicate a constant velocity, meaning the object is not speeding up nor slowing down.
On the concept of the market revolution and its effects on the United States, the statement that it brought many social and economic changes is true. The market revolution during the 19th century fundamentally altered the U.S. economy with innovations in transportation, manufacturing, and communications, facilitating wider exchange of goods and shaping modern capitalist economy.
Regarding waves, the idea that a pebble dropped in water creating a pulse wave is indeed true. A pulse wave is a single disturbance that moves through a medium, and when a pebble is dropped into water, it creates such a disturbance, which then propagates outward from the point of impact.