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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

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

2. What happens when a magnetic field flows from a magnet into metal?
(a) It polarizes the electronic field.
(b) It bends the electronic field.
(c) It temporarily makes the metal magnetic.
(d) It demagnitizes the metal.

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

4. What does the acronym SONAR stand for?
(a) Somatic Navigation of Radar.
(b) Sound Navigation and Ranging.
(c) Situations in Navigation and Retreiving.
(d) Sounds Near and Ranging.

5. The speed of the vibration affects ____________.
(a) The wavelength.
(b) The density.
(c) The foil.
(d) The pattern.

Short Answer Questions

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

2. What responds to the smoke/no smoke pattern?

3. How do oppositely charged electrons respond to each other?

4. What are happening to the crates at the opening to Chapter 2 in this section?

5. How do mirrors reflect an image?

Short Essay Questions

1. What topic does Part 5 cover?

2. Who is the last mammoth?

3. How does Bill record the binary numbers of the mammoth's physical presence?

4. What are analog quantities and how are its levels described?

5. Briefly describe the binary system.

6. What are sensors and detectors? What do they measure?

7. How do liquid crystal displays work?

8. Discuss the composition of light.

9. Where is the mammoth taken when it feels traumatized and then experiences first joy and then despondency?

10. Explain how electromagnets keep machines running.

(see the answer keys)

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