|Name: _________________________||Period: ___________________|
This test consists of 15 multiple choice questions and 5 short answer questions.
Multiple Choice Questions
1. When an object absorbs light rays, how is the energy held in the object?
(a) As kinetic energy.
(b) As heat.
(c) There is no energy involved.
(d) As inertial energy.
2. What causes increased heat in the process of conduction?
(c) Electronic transfers.
(d) Increased movement.
3. How many ways can heat travel?
4. What is the effort you put in combined with the distance over which the effort is done?
(c) Mendal's law.
5. What are different level marks for different types of water on the side of a ship called?
(a) Flow marks.
(b) Plimsoll lines.
(c) Anchor marks.
(d) Horizon marks.
6. What is one component of a lever?
(a) A straight edge.
(b) A caliper.
(c) A screw.
(d) A spring.
7. What turns the crankshaft in an internal combustion engine?
8. Through what can heat not travel?
(a) Very porous elements.
(b) There is nothing through which heat cannot travel.
(c) Very dense elements.
(d) A vacuum.
9. What contains one element which is the detonator and another reactive element which acts as the propellant?
10. What are tanks that take in water to increase the density of the craft?
11. What is applied to a lever to make it move?
(b) Gravitational pull.
12. 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?
(a) The Principle of Force and Inertia.
(b) The Principle of Push and Thrust.
(c) The Principle of Gravity.
(d) The Principle of Action and Reaction.
13. In flying, what is used to overcome weight from gravity?
(a) Lift created by the nose.
(b) Lift created by the rudder.
(c) Lift created by the tiller.
(d) Lift created by the airfoil.
14. How many forces hold things together?
15. The rack and pinion is an example of ______________.
(a) A lever.
(b) A wedge.
(c) A gear.
(d) A stifle.
Short Answer Questions
1. What is electricity flowing through a wire?
2. What is another type of wedge the author mentions?
3. Upon what principle does a pulley work?
4. What additional tasks can a boat with two triangular sails do?
5. What is a substance that contains only one type of atom?
This section contains 440 words
(approx. 2 pages at 300 words per page)