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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. Upon what numbers are codes in a binary system built?
(a) 0, -1.
(b) 0, 1.
(c) 1, 2.
(d) 0, 9.

2. What causes electrons to move?
(a) The attraction to the proton.
(b) Energy.
(c) Electrostatics.
(d) Ectoplasma.

3. What is a core of wire wound around an iron core?
(a) A bushing coil.
(b) An altimeter.
(c) A demagnitizer.
(d) An electromagnet.

4. For what does Bill think the mammoth will return?
(a) The music.
(b) The apples and pumpkin pie.
(c) The information.
(d) The technology.

5. What is the meaning of the acronym LASER?
(a) Light Applied by Stimulated Emission of Radiation.
(b) Lesser Amplifications of Stimulated Emission of Radiation.
(c) Light Amplification by Situatued Emissions of Radar.
(d) Light Amplification by Stimulated Emission of Radiation.

6. What number represents off in binary code?
(a) 0.
(b) -1.
(c) 9.
(d) 2.

7. How do mirrors reflect an image?
(a) Inversed.
(b) Without distortion.
(c) As if it were a concave lens.
(d) As if it were a convex lens.

8. By what are the variations of an analog quality turned into a sequence of numbers?
(a) A wave machine.
(b) An analog-digital converter.
(c) A transistor.
(d) A capacitor.

9. What is the magnetic field caused by an electric force?
(a) Motive force.
(b) Positron force.
(c) Neutrino force.
(d) Polar force.

10. What is one thing an electrical current can measure?
(a) Particles in the air.
(b) Frequency.
(c) Opacity.
(d) Density.

11. In the illustration of how electricity is generated by a chemical reaction, what is the end result of the illustration?
(a) The copper turns green and the zinc becomes cloudy.
(b) An electrical shock.
(c) The copper turns green and the zinc turns brown.
(d) A meltdown.

12. What does a convex lens do?
(a) Creates a smaller image of a larger image.
(b) Creates a larger image of a smaller one.
(c) Causes an image to flatten.
(d) Causes an image to appear three dimensional.

13. What are devices which measure and/or locate a force and/or give feedback?
(a) Detractors and desensitizers.
(b) Detectors and detractors.
(c) Sensors amd detectors.
(d) Sensors and desensitizers.

14. What is the type of electricity when electrons travel through a conductor such as metal?
(a) Static electricity.
(b) Direct electricity.
(c) Wave electricity.
(d) Current electricity.

15. In what part of the atom does one find electrons?
(a) They are not part of an atom.
(b) In both the nucleus and outer rings.
(c) The nucleus.
(d) The outer ring.

Short Answer Questions

1. How does Macaulay illustrate the idea of a chemical reaction to produce electricity?

2. What does the acronym SONAR stand for?

3. Why can a dog hear a dog whistle that humans cannot?

4. What happens when visible rays cross the lens of our eye and are bent through the convex surface?

5. What are binary digits?

(see the answer keys)

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