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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) 1, 2.
(b) 0, 1.
(c) 0, 9.
(d) 0, -1.

2. What parts of ROM memory can be changed?
(a) The binary code.
(b) None.
(c) The lower chip layers.
(d) The upper chip layers.

3. Where can the electromagnetic fields exist that sound waves cannot?
(a) Outside of matter.
(b) In a vacuum.
(c) Through dense matter.
(d) In the brain.

4. When a magnetic field flows from a magnet into metal what is pulled together?
(a) The metal and the current.
(b) The metal and magnet.
(c) The magnet and the current.
(d) Nothing.

5. How can information in binary code be communicated?
(a) It cannot be communicated.
(b) Light waves.
(c) Morse code.
(d) Electrical pulses.

6. What type of input do we use to input binary code on a phone?
(a) Fingertip.
(b) Positive.
(c) Code.
(d) Negative.

7. As the frequency speed increases, what happens to the pitch?
(a) It gets higher.
(b) It gets lower.
(c) Frequency has no effect on pitch.
(d) It dissipates.

8. What traumatizes the mammoth?
(a) Being taken into virtual reality.
(b) Having its hair cut.
(c) Having its tusks shrink.
(d) Seeing the dead mammoths all around.

9. Why do electromagnets use the forces of attraction and repulsion alternately to keep machines running?
(a) Because electrons inherently move towards neutrality.
(b) Because an electrical current can only stay polarized.
(c) Because electrons are always positively charged.
(d) Because electrical current can be reversed or shut off.

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

11. What is it called when levels rise and fall continuously?
(a) Static.
(b) Variable.
(c) Digital.
(d) Analog.

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

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

14. What is white light?
(a) A light wave that vibrates higher than the colors that make up light.
(b) A combination of the three colors that make up all light.
(c) An absence of any light.
(d) An inversed reflection of one color of the light spectrum.

15. What does RADAR use?
(a) Radio waves.
(b) Recharged particles.
(c) Radiation.
(d) Restored particles.

Short Answer Questions

1. Why does Bill invite the mammoth in?

2. Under what situation does the eye perceive a reflection of light?

3. What is additive mixing?

4. What is the distance between each peak of energy in a wave?

5. What is created when heating an object to the point that it burns or glows, or by passing an electric current through a vapor or gas?

(see the answer keys)

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