View a FREE sample

This quiz consists of 5 multiple choice and 5 short answer questions through Part 2, Harnassing the Elements, Introduction, Floating, Flying and Pressure Power, pp.91-141.

Multiple Choice Questions

1. What are small propellers mounted in the base of a ship's hull?
(a) Thrusters.
(b) Stablizers.
(c) Tillers.
(d) Rudders.

2. What does the picture of a mammoth pulling a merry-go-round illustrate?
(a) Gears and belts.
(b) Wedges.
(c) Levers.
(d) Blocks and tackles.

3. What are large fins which adjust their tilt to compensate for waves?
(a) Stabilizers.
(b) Fans.
(c) Screws.
(d) Rotaries.

4. In flying, what is used to overcome weight from gravity?
(a) Lift created by the rudder.
(b) Lift created by the tiller.
(c) Lift created by the airfoil.
(d) Lift created by the nose.

5. What is applied to a lever to make it move?
(a) Balance.
(b) Force.
(c) Work.
(d) Gravitational pull.

Short Answer Questions

1. What controls direction on a ship?

2. What is another type of wedge the author mentions?

3. What does the Mechanics of Movement explore?

4. What principle is in use as a propeller pushes the water back and as that same water which has been pushed back rolls forward again and hits the propeller?

5. What is the principle behind the action of any machine?

(see the answer key)

This section contains 270 words (approx. 1 page at 300 words per page) View a FREE sample