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Name: _________________________ | Period: ___________________ |
This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.
Multiple Choice Questions
1. What number represents off in binary code?
(a) 9.
(b) 2.
(c) -1.
(d) 0.
2. What is a core of wire wound around an iron core?
(a) An electromagnet.
(b) A demagnitizer.
(c) An altimeter.
(d) A bushing coil.
3. What does a convex lens do?
(a) Creates a smaller image of a larger image.
(b) Causes an image to flatten.
(c) Creates a larger image of a smaller one.
(d) Causes an image to appear three dimensional.
4. What happens when visible rays cross the lens of our eye and are bent through the convex surface?
(a) They form an image on the retina.
(b) They vibrate the retina.
(c) They vibrate the iris.
(d) The can burn out the cortex.
5. What is one type of ray that human eyes cannot perceive?
(a) Any black spectrum rays.
(b) Any yellow spectrum rays.
(c) Microwaves.
(d) Any red spectrum rays.
Short Answer Questions
1. What do sound waves do to molecules?
2. 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?
3. How is electricity created?
4. Why do electromagnets use the forces of attraction and repulsion alternately to keep machines running?
5. What two elements combine to make a body scanner?
Short Essay Questions
1. What are bar codes?
2. How is magnetism caused?
3. What is the input?
4. What is a CPU and how is it illustrated by Macaulay?
5. What topic does Part 5 cover?
6. Explain how electromagnets keep machines running.
7. How does Bill record the binary numbers of the mammoth's physical presence?
8. Briefly discuss the three ways musical instruments create waves.
9. What are analog quantities and how are its levels described?
10. Define the two types of waves that are discussed.
This section contains 704 words (approx. 3 pages at 300 words per page) |
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