Work and Machines
Name: ______________________ Date: ____________
Draw a line from each item on the left to its match on the right.
1. Efficiency
A. The maintenance of a certain quantities unchanged during chemical reactions or physical
2. Kinetic
B. Skillfulness in avoiding wasted time and effort
3. Machine
C. Use of physical or mental energy
4. Effort
D. A statement that expresses a personal opinion or belief or adds information
5. Conservation
E. Any mechanical or electrical device that transmits or modifies energy to perform or assist in
6. Input
F. A rigid bar pivoted about a fulcrum
7. Force
G. Production of a certain amount
8. Lever
H. A push or a pull
9. Output
I. A division of some larger or more complex organization
10. Arm
J. Relating to the motion of material bodies and the forces associated therewith