Practice Quiz

MTEL Physics Practice Exam - Question List

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1.
Which of the following is the primary goal of scientific inquiry?
  1. Finding technological solutions to human problems.
  2. Discovering the fundamental principles that govern nature.
  3. Developing mathematical techniques for solving problems.
  4. Investigating fundamental principles that transcend the material world.
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2.
Which of the following is the best example of a testable hypothesis?
  1. Why do both Coulomb's law and Newton's law of gravitation obey an inverse square relationship?
  2. Will an incandescent lamp last longer if it is left on continuously or rapidly turned on and off?
  3. When is it most important to apply the laws of quantum physics in place of those of classical physics?
  4. Why does light refract as it moves from one optical medium to another?
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3.
A student is investigating factors that affect the strength of an electromagnet. The student proposes the following design.

Factors: Voltage, number of turns of wire.
Process: Set voltage to 2.0 V, wrap 50 turns of wire around an iron coil. Measure how many paper clips the magnet can pick up. Set voltage to 4.0 V and wrap 30 more turns of wire. Again measure the number of paper clips. Repeat several times.

Which of the following is the most significant problem with this experimental design?
  1. Not accounting for the resistance of the additional length of wire.
  2. Using paper clips to measure the strength of the electromagnet.
  3. Using increments of 2.0 V instead of 1.0 V.
  4. Changing the values of two factors at the same time.
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4.
Which of the following guidelines should be followed when keeping a laboratory notebook?
  1. Reorganize the notebook by cleaning up data, notes, and records before each new lab.
  2. Round all data values to two significant figures before recording.
  3. Date and record all procedures, events, and original data in ink to prevent erasures.
  4. Keep a separate notebook to record calculations and sketches.
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5.
Which of the following calculations can be used for curve fitting?
  1. The chi-square distribution.
  2. Least-squares regression.
  3. The correlation coefficient.
  4. The standard deviation of a sample.
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