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This quiz consists of 5 multiple choice and 5 short answer questions through Part 2, Harnassing the Elements, Exploiting Heat, Nuclear Power, pp. 142-173.

Multiple Choice Questions

1. What are two things a sail can do for a craft?
(a) Give pulpulsion and direction.
(b) Lift and Slow.
(c) Propel and stop.
(d) Propel and repel.

2. Where is steam still used?
(a) In water plants.
(b) In thermal power stations.
(c) In some internal combustion engines.
(d) In industrial engines.

3. What is suction referred to in the act of flying?
(a) Lift.
(b) Floating.
(c) Sinking.
(d) Glide.

4. What does the inclined plane do?
(a) Increases effort.
(b) Decreases gravitational force.
(c) Extends the distance to a rise.
(d) Decreases effort.

5. What causes sideways movements of a ship?
(a) Thrusters and stabilizers.
(b) Cams.
(c) Jone's principle.
(d) Rods.

Short Answer Questions

1. What controls the movement in a gear system?

2. What are different level marks for different types of water on the side of a ship called?

3. Under normal circumstances, what force(s) does a molecule possess?

4. What occurs when very small atoms smash together?

5. How does floating harness the power obtained by squeezing or stretching molecules?

(see the answer key)

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