(Q).
Answer the following question given this paragraph: Acceleration that does not change in time is called uniform or constant acceleration. The velocity at the beginning of the time interval is called initial velocity, , and the velocity at the end of the time interval is called final velocity, . In a velocity versus time graph for uniform acceleration, the slope of the line is the acceleration. The equation that describes the curve is . Q: The velocity at the beginning of the time interval is called what? Choices: - growing velocity - internal velocity - previous velocity - initial velocity A:
(A).
initial velocity

(Q).
Answer the following question given this paragraph: A mechanical wave is a disturbance in matter that transfers energy from place to place. A mechanical wave starts when matter is disturbed. An example of a mechanical wave is pictured in Figure below . A drop of water falls into a pond. This disturbs the water in the pond. What happens next? The disturbance travels outward from the drop in all directions. This is the wave. A source of energy is needed to start a mechanical wave. In this case, the energy comes from the falling drop of water. Q: What is the term for a disturbance in matter that causes the transfer of energy from place to place? Choices: - nucleation - flooding wave - temperature wave - mechanical wave A:
(A).
mechanical wave

(Q).
Answer the following question given this paragraph: The combined gas law relates pressure, volume, and temperature of a gas. Q: Which law relates the pressure, volume, and temperature of a gas? Choices: - directions gas law - shifts gas law - newton's law - combines gas law A:
(A).
combines gas law