Practice Quiz

MTEL Physics Practice Exam - Question List

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11.
Several students in a physics class are planning to design a wind power system that can generate enough electricity to perform hydrolysis of water in a 500 mL beaker. According to the engineering design process, which of the following should the students do first?
  1. Make an expanded sketch of the major parts of the system.
  2. Build a small, working prototype of the system.
  3. Define the problem that needs to be solved.
  4. Brainstorm several alternative designs for the system.
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12.
Which of the following is an action-reaction pair for a space station containing astronauts in orbit about the earth?
  1. The weight of the space station and the centripetal force on the space station.
  2. The weight of the astronauts and the centripetal force on the space station.
  3. The weight of the space station and the gravitational force of the space station on the earth.
  4. The weight of the astronauts and the gravitational force of the space station on the astronauts.
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13.
A person holds a spinning bicycle wheel while sitting stationary on a chair that is free to rotate about a vertical axis. As the person changes the axis of the spinning bicycle wheel, the chair begins to rotate about its axis. The chair's rotation is a result of:
  1. Conservation of angular momentum.
  2. A torque due to the force of gravity.
  3. Conservation of rotational kinetic energy.
  4. The mechanical advantage of double-axis rotational system.
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14.
Which of the following describes the process by which energy is transmitted from one region of space to another through molecular collisions?
  1. Radiation
  2. Latent heat
  3. Convection
  4. Conduction
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15.
Which of the following best describes the microscopic interpretation of the concept of entropy?
  1. The distribution of energy per degree of freedom of a molecule.
  2. The amount of randomness or disorder in a system.
  3. The average time required for a system to reach equilibrium.
  4. The lowest temperature a quantum mechanical system can reach.
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