| A | B |
|---|
| Which of the following is a set of particles or interesting components to which energy is added or from which energy is removed? | A system |
| Air cools as it escaped from a diver's compressed air tank. What kind of process is this? | Adiabatic |
| According to the first law of thermodynamics, the difference between energy transferred to or from a system as heat and energy transferred to or from a system by work is equivalent to which of the following? | Internal energy change |
| A heat engine has taken in energy as heat and used a portion of it to do work. What must happen next for the engine to complete the cycle and return to its initial conditions? | It must give up energy as heat to a lower temperature so work can be done on it. |
| How is the conservation of internal energy expressed for a system during an isothermal process? | ∆T=0, so ∆U=0; therefore, ∆U=Q-W=0, or Q=W |
| Imagine you could observe the individual atoms that make up a piece of matter and that you observe the motion of the atoms becoming more orderly. What can you assume about the system? | Its entrophy is decreasing. |
| A mass attached to a spring vibrates back and forth. At maximum displacement, the spring force and the | Acceleration reach a maximum. |
| For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion? | period |
| When a mechanical wave's amplitude is tripled, the energy the wave carries in a given time interval is | 9 |
| Which of the following types of interference will occur when the pulses in the figure above meet? | Constructive interference |
