View a FREE sample

This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. What do you have to use in order to accomplish work with half the effort?
(a) Ten percent of the distance multiplied by one-third of the effort.
(b) Half the distance.
(c) One-third the distance.
(d) Twice the distance.

2. Why does a thermos lose heat?
(a) The oxygen absorbs the heat.
(b) The molecules eventually slow down.
(c) The argon absorbs the heat.
(d) The heat can travel through the stopper.

3. What is electricity flowing through a wire?
(a) Ohms.
(b) Current.
(c) Watts.
(d) Resistance.

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

5. What is a fulcrum?
(a) A special sort of wedge.
(b) A point at which inertia is overcome.
(c) A formula for determining energy needed to do work.
(d) A pivot point.

6. What are different level marks for different types of water on the side of a ship called?
(a) Plimsoll lines.
(b) Anchor marks.
(c) Horizon marks.
(d) Flow marks.

7. What controls direction on a ship?
(a) A rudder.
(b) A valve.
(c) A drive.
(d) A screw.

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

9. What imparts movement into the air or water around them on a ship?
(a) Bits.
(b) Propellers.
(c) Cams.
(d) Levers.

10. What is another type of wedge the author mentions?
(a) The inversion ring.
(b) The gate latch.
(c) The caliper.
(d) The sharp tapered edge of axes.

11. What additional tasks can a boat with two triangular sails do?
(a) Achieve one additional suction force.
(b) Achieve two additional suction forces.
(c) Divide the suction force.
(d) Multiply the suction force by three.

12. What is the main idea in Part 2 of the book?
(a) The way atoms can be made more dense.
(b) The way force can be exerted to change atomic structure.
(c) Exploring the bonds of attraction and the movement of molecules to and from each other.
(d) The way work can cause energy to dissipate.

13. How many types of gears are there?
(a) One.
(b) Four.
(c) Five.
(d) Seven.

14. What is the principle that states energy is neither created nor destroyed?
(a) The principle of energy change.
(b) The principle of the conservation of energy.
(c) The principle of energy gain.
(d) The principle of energy loss.

15. What is a wheel and rod attacked by a hinge?
(a) A worm.
(b) A crank.
(c) A spur.
(d) A prank.

Short Answer Questions

1. What pumps refrigerant out in an air conditioner?

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

3. What urges do molecules possess?

4. How does a zipper operate?

5. When an object absorbs light rays, how is the energy held in the object?

(see the answer keys)

This section contains 515 words (approx. 2 pages at 300 words per page) View a FREE sample