Write the letter of the matching definition next to each term.
1. efficiency
A. A division of some larger or more complex organization
2. kinetic
B. Job or effort to get something done
3. machine
C. The pivot about which a lever turns
4. effort
D. To have a tendency or disposition to do or be something
5. conservation
E. The maintenance of a certain quantities unchanged during chemical reactions or physical
6. input
F. Forces that provide energy and direction
7. force
G. A shaft on which a wheel rotates
8. lever
H. A simple machine consisting of a wheel with a groove in which a rope can run to change
9. output
I. The power to do work or make things move
10. arm
J. A push or a pull
11. mechanical
K. Production of a certain amount
12. work
L. Relating to the motion of material bodies and the forces associated therewith
13. energy
M. Use of physical or mental energy
14. potential
N. Any mechanical or electrical device that transmits or modifies energy to perform or assist in
15. wedge
O. The difference in electrical charge between two points in a circuit expressed in volts
16. fulcrum
P. An aircraft that has a fixed wing and is powered by propellers or jets
17. power
Q. A rigid bar pivoted about a fulcrum
18. watt
R. A unit of power equal to 1 joule per second
19. generator
S. Strength or the ability to control things
20. pulley
T. Using ___ or tools or devices
21. wheel
U. Skillfulness in avoiding wasted time and effort
22. inclined
V. Engine that converts mechanical energy into electrical energy by electromagnetic induction
23. axle
W. A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese
24. plane
X. A statement that expresses a personal opinion or belief or adds information